Lab_1_Intro_to_VB__the_Body__Movements__Planes_of_Motion_Student.docx

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BIO 446L Human Microscopic & Gross Anatomy Laboratory Manual Spring 2024 Visible Body Team Soroosh Sadeh, M.S. Gonie Altman, B.S. Supplies and Equipment: All students must wear long pants and closed toe shoes in lab. Please do NOT bring FOOD OR DRINK into lab.
Introduction to the Human Body 1 Lab 1: Introduction to the Human Body Objectives: 1. Describe the anatomical position. 2. Understand the anatomical planes. 3. Understand and perform different terms of movement. 4. Understand the most important anatomical terminology (terms of movement). 5. Be familiar with major body cavities. 6. Understand the concept of serous membranes with examples. 7. Understand the pericardial sac and peritoneum. 8. Be able to name the organs of pericardial sac and peritoneum with their retro organs (Won’t be on Exam or Canvas Quizzes).
Introduction to the Human Body 2 Section: Planes and Positions Resources to use: Visible Body Suite - App Visible Body Planes and Positions eBook provided under lab 1 in Visible Body Courseware. Activity 1: Anatomical Position Launch Visible Body Suite. o After logging in, click on the bottom left hand corner “My Apps” and then click the app named “Visible Body Suite”. This will open the app in another tab for you to use. Click on Human Anatomy, navigate to Systems in tool bar and scroll down until you see Muscular System Views, select # -1. Muscular System View . The image below will appear on your screen. This model is standing in anatomical position. 1. Now click back to the assignments web page tab. Find the module named “Visible Body Planes and Positions ebook”and click it open. Use this ebook as a reference and describe the features of anatomical position in 1-2 sentences. Anatomical position features your palms facing out with feet about hip distance apart.
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Introduction to the Human Body 3 Activity 2: Anatomical Planes In the Visible Body Suite app, click on the filter icon and select “Cross Sections” option located in the middle of the menu. Here, you will find different radiological cross-sections, such as MRI and CT scans, which are 2-D images through gross anatomy structures that allow us to see the insides of those structures. They are obtained to help diagnose and treat patients. Click through the “Head (Orbit) cross section cut down the axial plane . Note that in # 3 the cut is made in a transverse plane above the eyes, and after the section is flipped, you are looking at the underside of the eyes. When you are done, click the menu button at the bottom left corner of the page to return to the main cross-sections page. Click through the “Head (Orbit)” crossection cut down the coronal plane . Note that in # 6 the cut is made in a vertical direction behind the eyes. Once the front section of the face is removed, you see an outline of the eyes, nose, and mouth, as if the model were looking at you. Return to the menu and continue to the final plane view. Click through the “Head (Orbit)” crossection cut down the sagittal plane . Note that in # 9 only one hemisphere of the brain is seen. Therefore, the cut must have been in a vertical plane through the middle of the head. 1. Using the Visible Body Planes and Positions ebook (which we previously opened in activity 1) as a reference define “anatomical planes” in 1-2 sentences. Anatomical planes are essentially invisible dimensional surfaces that pass through the body in order to help describe the location of parts of human anatomy. Anatomical planes are imaginary flat surfaces that pass through parts of the body. Planes split the body into sections to make it easier for us to describe the location of parts of the body relative to planes. 2. Now that you are familiar with the following terms, match them to the appropriate description: D Sagittal a. Divides the body into a front and back C Midsagittal b. Divides the body into a top and bottom A Coronal c. Divides the body vertically into equal right and left sides B Axial d. Divides the body vertically into right and left sides
Introduction to the Human Body 4 3. Now apply what you know from the activities above and label the images below as axial, coronal, or sagittal. 3. Transverse 4. Midsagittal 5. Coronal Review your answers with your group mates and your TAs. Section: Directional Terms
Introduction to the Human Body 5 Activity 1: Directional Terms Using the Visible Body Planes and Positions E-book, review the directional terms learned in the previous section. Launch VB Suite and open click Human Anatomy navigate to “systems” at the top of the page. Scroll down until you see “Muscular System Views” and select 30 - Knee. Explore the view by selecting the structures and learn their names. o Tip: Not sure where these muscles are? Select "anatomy search" at the bottom of your screen and type in the muscle. Then select "show me." 1. Using your knowledge on directional terms, circle or make bold and red the correct answer that completes each sentence. 1. The vastus intermedius is (superficial/ deep ) to the rectus femoris. 2. The tibialis anterior is (medial/ lateral ) to the tibia. 3. The gastrocnemius is ( superficial /deep) to the soleus. 4. The knee is (proximal/ distal ) to the hip. 5. The vastus lateralis is ( ventral /dorsal) to the semitendinosus. 6. The extensor digitorum longus is ( inferior /superior) to the tensor fascia lata. Click back to the main menu by clicking on 4 squares, select the filters and selectc the Gross Anatomy Lab at the bottom of the menu. - Scroll to the Digestive System View Then click # 2. Intraperitoneal Organs . Explore the model and select the structures on the model to learn their names. Using the model as a reference fill in each sentence with the directional term that completes it. 1. The greater omentum is superficial to the small intestine. 2. The ascending colon is lateral to the small intestine. 3. The ileum is inferior to the transverse colon. 4. The descending colon is ____superior__________ to the sigmoid colon. Group Activity: o Ask your TAs to find the torso models in the lab and try to find the organs listed in the previous exercise. Activity 2: Supine vs Prone Click back to the main menu and then navigate to Gross Anatomy Lab by clicking it at the top of the page. Then, click any of the options to explore the differences in supine and prone view of the model. You can change the position of the model by clicking “supine or prone” located at the top right corner of the page.
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Introduction to the Human Body 6 1. In the image above, is the body lying supine or prone? Supine 2. In 1-2 sentences, compare and contrast supine and prone. Supine describes when someone is lying flat on their back with their stomach face up. In comparison, lying prone is flat on one’s stomach with their back to the ceiling. Review your answers with your group mates and your TAs.
Introduction to the Human Body 7 Section: Terms of Movement Activity 1: Flexion Click back to the Home Screen , choose Muscles & Kinesiology Navigate to Muscle Actions by clicking the option at the top in gray, then find Elbow Flexion #1 under Upper Limbs. Play the animation. 1. Note the change in angle of the elbow joint during elbow flexion. Describe in 1-2 sentences how the angle changes with the movement (does it increase, decrease, or stay the same?). During elbow flexion, the angle decreases. Your anterior forearm comes closer to the shoulder. 2. There are three muscles that act as agonists (prime movers) in this movement. Select each muscle in Elbow Flexion to learn its name. Then, identify the structures indicated by each letter on the image below, and fill in their names in the corresponding spaces beneath the image ( Note: You don’t need to memorize any of the muscles you identify in this lab. You will study them in later labs). Note: The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening during the same action is called the antagonist. A. Biceps Brachii B. Brachialis C. Brachioradialis
Introduction to the Human Body 8 Activity 2: Extension Click the four squares at the top of the page to return to the actions page and then find Elbow Extension under Upper Limbs. Play the animation. 1. Note the change in angle of the elbow joint during elbow extension. In 1-2 sentences, describe how the angle changes with the movement. During elbow extension the angle increases with movement. It is essentially just the act of straightening the forearm. 2. There is one muscle with three heads that acts as an agonist (prime mover) in this movement. Select the muscle in Elbow Extension to learn its name. Then, identify the structure indicated by the letter “A” on the image below, and fill in its name in the corresponding space beneath the image . A. Triceps brachii 3. In 1-2 sente nces, explain how the movement of elbow extension is the opposite of the movement of elbow flexion. The movement of elbow extension moves your anterior forearm away from your shoulder and extends it fully, which is the opposite of flexion that decreases the angle and moves the anterior forearm towards the shoulder. 4. Using the information learned in this activity, match the following terms to the appropriate description: B__ Flexion a. Agonist in elbow flexion D__ Extension b. A movement decreasing the angle of a joint C__ Triceps brachii c. Agonist in elbow extension
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Introduction to the Human Body 9 A__ Biceps brachii d. A movement increasing the angle of a joint Activity 3: Abduction Navigate to Actions, then find Shoulder Abduction under Shoulder. Play the animation. 1. Describe the movement in 1-2 sentences. Shoulder abduction is when you raise the shoulder and move it laterally away from the side of the body. Activity 4: Adduction Navigate to Actions, then find Shoulder Adduction under Shoulder. Play the animation. 1. Describe the movement in 1-2 sentences. Shoulder adduction is when you lower the shoulder while moving it towards the midline of the body. 2. In the image above, what movement does the blue arrow represent? What movement does the red arrow represent? Abduction, adduction. 3. Match the following terms to the appropriate description: _D_ Adduction a. Agonist in shoulder abduction _C_ Abduction b. Agonist in shoulder adduction A__ Deltoid c. A movement of a limb away from the midline _B_ Latissimus dorsi d. A movement of a limb toward the midline
Introduction to the Human Body 10 4. Adduction and abduction are movements in relation to the midline. We have explored the shoulder joint in this activity. Name another joint that can also perform these movements and use the Muscle Premium app to find the following information. Name of joint: Knee Review your answers with your group mates and your TAs. Section: Forearm and Ankle Movements Activity 1: Forearm Movements Navigate to Actions, then find Forearm Pronation under Upper Limbs. Play the animation. 1. Describe the movement in 1-2 sentences. Forearm pronation is when you rotate the forearm inward with your elbow bent. The result should be your palm faced down. Now, find Forearm Supination under Upper Limbs. Play the animation. Forearm Supination is rotating your forearm with your elbow bent, so it results in your palm face up. 2. How is this movement different from forearm pronation? Pronation rotates so that the palm goes from face up to face down while supination is the opposite. Activity 2: Ankle Movements Navigate to Actions, then find Foot Inversion under Lower Limbs. Rotate the model to observe the anterior side of the lower limb. Play the animation. 1. Describe the movement in 1-2 sentences. Foot inversion is rotating the sole of the foot inwards towards the midline of the body.
Introduction to the Human Body 11 Now, navigate back to Actions, then find Foot Eversion under Lower Limbs. Rotate the model to observe the anterior side of the lower limb. Play the animation. 2. Describe the movement in 1-2 sentences. Foot eversion is rotating the sole of the foot outward and away from the midline of the body. 3. Explain how eversion is the opposite of inversion in 1-2 sentences. Foot eversion is AWAY from midline and inversion is TOWARDS. 4. Eversion and inversion are represented on the image of the right ankle below. What movement is represented by A? What movement is represented by B? a__ Eversion ___________ b____ Inversion ______ Next, navigate to Actions, find Dorsiflexion under Lower Limbs and play the animation. Then, navigate to Plantarflexion under Lower Limbs and do the same. 5. Fill in the blanks using the information found in Dorsiflexion and Plantarflexion: Dorsiflexion involves muscles on the _Anterior Side_________ side of the lower limb. Plantarflexion is the movement of pointing the toes toward the _ground or the floor__ . The gastrocnemius is an agonist in _plantarflexion_ . 6. Dorsiflexion and plantarflexion are represented on the image of the right ankle below. What movement is represented by A? What movement is represented by B?
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Introduction to the Human Body 12 a.____ dorsiflexion _________b._ plantarflexion_ ________ Section: Jaw Movements Activity 1: Elevation, Depression, Protratcion, and Retraction Click back to the Home Screen , choose Muscles & Kinesiology Navigate to Muscle Actions by clicking the option at the top in gray, then find Elbow Flexion #1 under Upper Limbs. Play the animation. Repeat the steps above for Mandible Depression, Mandible Protraction, and Mandible Retraction. 1. Fill in the table below with descriptions for each movement. Movement Description of Action Mandible Elevation The act of closing the mouth. Agonists include: temporalis, deep masseter, superficial masseter, and medial pterygoid. Mandible Depression The act of opening the mouth. Agonists include: lateral pterygoid (superior head), lateral pterygoid (inferior head), geniohyoid, mylohyoid, and digastric. Synergists: stylohyoid, omohyoid, sternohyoid, thyrohyoid, and sternothyroid. Mandible Protraction Pushing the lower jaw forward, creating an underbite. Agonists: lateral pterygoid (superior head) and lateral pterygoid (inferior head). Synergists: superficial masseter and medial pterygoid. Mandible Retraction Pulling the lower jaw backward, creating an overbite. Agonists:
Introduction to the Human Body 13 temporalis, deep masseter. Synergists: digastric, geniohyoid, mylohyoid, and stylohyoid. Section: Rotation Activity 1: Head Movements Navigate to Actions, then find Head Rotation (Ipsilateral) under Head and Neck. Play the animation and answer the following question. 1. Rotation is a movement made about a longitudinal axis in a transverse plane. What is the axis in the head rotation? The vertebral column or spine Activity 2: Shoulder Movements Navigate to Actions, then find Shoulder Medial Rotation under Shoulder. Play the animation. Next, navigate to Shoulder Lateral Rotation. Play the animation. 2. The longitudinal axis of both the above actions is the long axis of the humerus. Describe the difference between medial rotation and lateral rotation. Medial is towards the midline and lateral is away from the midline Activity 3: Hip Movements The hip joint can also perform medial and lateral rotations. (Hint: Navigate to Actions, then find Hip Medial Rotation and Hip Lateral Rotation under Pelvis and play the animations.) 2. What type of rotation is A?__Hip Medial Rotation_________________ What about B _____Hip Lateral Rotation_________?
Introduction to the Human Body 14 3. What bone is the longitudinal axis for both of these rotations? Femur Activity: Review o Please fill in the blank with directional terms for Fred the Skeleton (you will meet him in person next week in the lab!). You may open the Visible Body Suite app . Choose Human Anatomy, from the Skeletal System views, click on the Full Skeleton (#1). Fred’s fibula is distal to his femur. When Fred squats his knees/hips will flex. When he stands up from a squatting position his knees/hips perform the opposite motion which is extension. This motion occurs on the __saggital____ plane and around the _medial lateral____ axis of rotation. Fred likes to do jumping jacks. When he performs jumping jacks his hips _adduct____ and _abduct___ on the _frontal_ plane while his shoulders _abduct____ and adduct__on this plane. In Fred’s old age his is losing some of his joint range of motion. He has trouble performing hip flexion, extension, abduction and adduction. This means he would be restricted what movement that combines these motions? __cicumduct___ o Car Driving and Thinking Anatomy with Fred Fred is driving his imaginary car with three children in the back seat and his wife in the front. In a seated position, Fred has his foot on the gas pedal. To press the gas pedal down Fred can do either _plantarflexion_____ of his ankle or extension__ of his knee and/or possibly _extension____ of his hip. These movements occur on the _saggital_____ plane. His kids start misbehaving so Fred takes his arm and reaches back on to point at them. What movements Fred needs to do with his spine in order to point at his children? Lateral Flexion Review your answers with your group mates and your TAs, then move on to the next section.
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Introduction to the Human Body 15 2. Depression of scapula 3. Depression of mandible 4.Abduction of legs 5.Adduction of arms 6.Flexion of wrist 7.Flexion of thumb 8.Inversion(supination) of foot 9.Rotation of spine 10. Upward rotation of scapula 11.Posterior pelvic tilt 12.Deviation of mandible 13. Ulnar deviation 14. Extension of fingers 15.Anterior pelvic tilt 16. Extension of elbow 17. Extension of wrist 18. Elevation of scapula 19.Elevation of mandible 20.Lateral flexion 21.Adduction of legs 22.Flexion of knee 23.Abduction of shoulder 24.Extension of neck 25.Retraction of scapula 26.Lateral flexion of neck 27.Adduction of fingers 28.Flexion of fingers 29.Elevation of pelvis 30.Protraction 31.
Introduction to the Human Body 16 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60.
Introduction to the Human Body 17 Section: Body Cavities Activity 1: o There are four main body cavities. Using a skeleton and body models you should be able to describe each cavity below: cranium/spinal canal thorax abdomen pelvis 1. List a few major organ systems that are contained in each cavity. Note the adjectives in the list below that match the nouns in the list above. o Cranial (sometimes described as cranial and spinal cavity): Brain and spinal cord o Thoracic cavity: Heart, lungs, esophagus, trachea , aorta, superior and inferior vena cava o Abdominal cavity: Digestive tract, liver, spleen, kidneys o Pelvic cavity: Digestive tract, bladder, ovaries, uterus,, prostate, seminal vesicles o What separates these cavities? The brain and spinal cord are contained in their own bony cavity that provides maximum protection by the cranial and spinal column bones. The thorax is separated from the abdomen by the diaphragm. There is no major separation of the abdomen from the pelvis. Thus these two cavities are often referred to as the abdominopelvic cavity . Within all of these cavities, there are membranes (sacs) that wall off certain of the organ systems from the bone and muscular parts of the body. However, some of the organ systems contained in the cavities remain outside of these membranes (sacs). o There are three sacs in the thorax. Two are for the lungs , and one is for the heart . Group Activity #1: (You may Skip This Activity) o The bones and muscles of the thoracic wall and the diaphragm make up the thoracic cavity. o Using the balloons provided, first blow up the balloons (do not over-inflate). Make one about the size of your fist. Make the other two balloons 3x larger. o Take one of the larger balloons and put your finger or fist in the balloon (without breaking it!). The balloon represents one pleural sac (often referred to as simply the pleura ), and your finger/fist represents one lung. o A similar sac called the pericardial sac [ peri-, around ] surrounds the heart (the smallest balloon). o The wall of the balloon that is nearest to the ribs is called the parietal pleura (associated with the body wall).
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Introduction to the Human Body 18 o The wall of the balloon nearest to the organ enclosed in the balloon (or your finger/fist) is called the visceral pleura (nearest the organ). o For the heart, the membranes are called parietal or visceral pericardium . o All three sacs in the thorax have this relationship of parietal and visceral layers. o The organs (lungs and heart), like your fist, almost fill the sac, and there is very little space between the parietal and visceral layers. The membranes making up the sacs are serous membranes. They are called serous because the cells produce a small amount of lubricating fluid to minimize friction and keep the opposing membranes from adhering to each other. NOTE: Your finger or fist does not actually enter the space in the balloon, thus a small opening in each sac allows the enclosed organ to maintain its contact to the body wall. (This is shown in the figure as your arm exiting the sac) . This opening in the sac allows vessels and nerves a conduit from outside the sac ( but still in the thoracic cavity ) to the organ in the sacs. The portion of the membranes that attach to the body wall and transit to the organ is known as a mesentery . Mesenteries are always visceral in nature and contain vessels and nerves to the organ. Group Activity #2: o Now place three balloons in the thorax of your skeleton. (The larger left and right balloons represent the pleural sacs with the lungs and the smaller central one is the pericardial sac containing the heart.) o Use your understanding of body directions to demonstrate the following: The lungs would indent the balloons from a medial direction . The heart would indent the balloon from a posterior direction .
Introduction to the Human Body 19 o Now, leave your finger or fist indented into the balloon in the thorax or abdomen. Slip another finger between the balloon and the spinal column while keeping your finger or fist pressed into the balloon (have your lab partner assist you). There are some organ systems in the thorax and abdomen that lie in the position of your finger, between the sac and the spinal column. These organs are said to be retropericardial or retroperitoneal ( retro , behind/posterior) in position. The same concept of sacs surrounding organs can be applied to the abdominal cavity (although much bigger and more complicated). In the abdomen, the membrane sac is called the peritoneal sac and also has the relationship of parietal and visceral layers . The mesenteries of the abdomen always come from the posterior. The abdominal mesenteries carry vessels and nerves from the posterior abdominal wall into the various sections of the gastrointestinal tract. Group Activity #3: o Go to Visible Body Courseware and complete the “Body Cavities_Thoracic Cavity” assignment to visualize the serous membrane concept. o The parietal layers of the pleura or peritoneum do not actually adhere to all parts of the body wall in their respective cavities, which allows the "retro" organ systems to have space in the cavity. o All pelvic organs, the kidneys, ureter, aorta, and inferior vena cava lie outside the peritoneal sac 1 , but within the abdominopelvic cavities . o We, therefore, have to think of two cavities in each part of the body. o One cavity is made by the bones and muscles (thoracic, abdominal, or pelvic cavities). o Additional cavities are the sacs contained in each major cavity ( pleural, pericardial, and peritoneal) . o For example, the thoracic cavity is the space inside the ribs, with the pleural and pericardial sacs contained within the thoracic cavity. Now you need to add to your previous list of organs that are contained in the thorax, abdomen and pelvis and then determine which ones are surrounded by a membrane sac and which ones are retro in position. In Visible Body courseware, use “Body Cavities_Thoracic Cavity” and “Peritoneum” assignment modules (follow the instructions presented in each assignment’s description) and the lab models to identify the different organ systems within a particular cavity. When you are finished, show your numbered list to the TA’s and they will tell you how many you should have. If your list is not the same, try again. 1 The peritoneum is the largest serous membrane of the human body, with a complex structure consisting of ligaments, the greater and lesser omentum, as well as the mesenteries. A mesentery is a double layer of peritoneum, and attaches the vasculature and nerves to the intraperitoneal organs. An omentum is a duplication of the visceral peritoneum and contains fatty tissue, lymph nodes, and vasculature. The greater omentum and the lesser omentum are connected to the stomach https://www.ncbi.nlm.nih.gov/books/NBK534788/
Introduction to the Human Body 20 Here is the list of organs in each of the body cavities. Using the provided Visible Body assignment modules, decide which organs/structures are retro in position and which organs or covered with a serous membrane (intra) . This is difficult, but we will use this information again later in the course. o Thorax: Esophagus, trachea, lungs, heart, thymus, aorta, inferior and superior vena cava, pulmonary arteries and veins, thoracic duct o Abdomen: Stomach, Liver, pancreas, kidneys, jejunum, ileum, adrenal glands, duodenum, ascending colon, transverse colon, descending colon, appendix, gall bladder, spleen, ureters o Pelvis: Bladder, rectum, sigmoid colon, ovaries, prostate gland, uterine tube, uterus, vagina, ureters, seminal vesicles o Intrapericardial and Intrapleural (Thorax: Pleural, Pericardial) Retro Lungs, heart esophagus, trachea, thoracic duct aorta, inferior and superior vena cava, sympathetic trunk, thymos, pulmonary arteries, and veins o Intraperitoneal (Abdomen) Retro Pancreas, Kidneys, adrenal glands, duodenum, ascending colon, descending colon, ureters, gall bladder Stomach, jejunum, ileum, transverse colon, appendix, liver, spleen o Intraperitoneal (Pelvis) Retro Sigmoid colon, ovaries, uterine Bladder, rectum, prostate gland, uterus, vagina, ureters, seminal vesicles. Review your answers with your group mates and your TAs. End of Lab 1, Great Job
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