Week 6 Worksheet

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School

Iowa State University *

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255

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Biology

Date

Dec 6, 2023

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docx

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Uploaded by ChancellorLapwing3860

Week 6 Worksheet Fill out worksheet on your computer and upload to CANVAS before the due date **Lab instructors will award points based on a good-faith effort to fill out worksheet. They will NOT be grading for correctness. It is ultimately your responsibility to make sure your answers are correct so that this will be a useful study guide for your weekly test. Therefore, make sure you ask your instructor, undergrad TAs, and your peers for help when you need it. ** South Tables Clay Model What is the deepest quadriceps muscle? vastus intermedius What is the most superficial quadriceps muscle? rectus femoris Which hamstring muscle is most lateral? Biceps femoris ☒ I have shown my completed model to the TA Insertion and Origins of Quadriceps and Hamstring muscles Where do the hamstring muscles have their proximal insertion site? The tibia and fibula Where is the proximal insertion site for the rectus femoris? The patella Which rotator cuff muscle inserts on the lesser tubercle of the humerus? Subscapularis muscle *Can you identify all of the bony features learned in Week 4 that are relevant to the three major muscle groups on the clay models? Muscle Model Model What is the shape of the sarcoplasmic reticulum? Why is it shaped in this manner? Cufflike structure, allows for increased surfaced area for the storage of key enzymes Do you see mitochondria within the myofibrils on the model? Why or why not? No, we can only see the mitochondria in myofibril in fast-twitch fibers What color on the model corresponds to the Z disc (boundary between sarcomeres)? red Looking at the neuromuscular junction on the cell model, which two places might you find acetylcholine? (Hint: where is it stored and where would it be during signaling?) presynaptic vesicle and synaptic cleft *Can you identify all of the important structures of the muscle cell and neuromuscular junction?

North Tables Cat Dissection What are the two most superficial muscles of the anterior upper hindlimb? Clavobrachialis, pectoantebrachialis Are the adductor longus and adductor femoris best described as anterior, posterior, medial, or lateral? Anterior, medial What is the largest hamstring muscle? Is it medial or lateral? Semimembranosus, lateral Which of the hamstring muscles can be seen in the antero-medial view of the hindlimb? Biceps femoris, semitendinosus Which two muscles attach to the calcaneus via the calcaneal tendon? Which is superficial and which is deep? The gastrocnemius (superficial) and soleus (deep) Is the tibialis anterior medial or lateral to the exposed tibia? Lateral *Can you identify all of the muscles that were dissected on the cat?

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