Anatomy In Clay Musewasddfcle Actdivity - Fall 2023
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University of Wisconsin, Milwaukee *
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Course
202
Subject
Anatomy
Date
Jan 9, 2024
Type
docx
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12
Uploaded by CommodoreFerret4003
BIOSCI 202 Lab – Fall 2023
Name: ________________________
Anatomy In Clay Muscle Activity (20 pts)
Directions:
For each group of muscles, you will sculpt these in clay and attach the clay muscles to the skeleton models at your lab bench. As you are working with your anatomy in clay activity, pause after each group is sculpted and complete
the corresponding area of these pages. Use the sculpted version of each muscle to guide your answers here. Please identify
the muscles listed in each image by coloring them with a color of your choice. In each corresponding table, list the origin, insertion, and actions for each muscle.
Complete the first ten muscles in week 8, then the last ten muscles in week 10
Muscles of The Head and Neck
Muscles to identify: Temporalis
Sternocleidomastoid
1
Muscle
Origin
Insertion
Actions
Temporalis
Temporal fossa
Anterior portion of mandibular ramus and coronoid process
Elevates mandible
Sternocleidomastoid
Manubrium and medial portion of the clavicle
Mastoid process and superior nuchal line
Rotates and flexes atlanto-occipital joint
BIOSCI 202 Lab – Fall 2023
Muscles of The Trunk
Muscles to identify: Rectus abdominis
Pectoralis major
Latissimus dorsi
2
Lateral View
Posterior View
Anterior View
Muscle
Origin
Insertion
Actions
Rectus abdominis
Pubic crest and symphysis
Xiphoid process and inferior ribs 5-7
Flexes lumbar spine; compress abdomen
Pectoralis major
Medial ½ of anterior surface of clavicle, anterior surface of costal cartilages of ribs 1-6
Greater tubercle of the humerus
Adducts in frontal plane,
flexes in sagittal plane, adducts in transverse plane
Latissimus dorsi
Posterior crest of ilium, spinous process of T7-
S3, ribs 10-12
Medial side of intertubercular groove of humerus
Horizontally abducts in transverse plane
BIOSCI 202 Lab – Fall 2023
Muscles of the upper limb – upper arm
Muscles to identify: Deltoid
Biceps brachii
Triceps brachii
3
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BIOSCI 202 Lab – Fall 2023
4
Anterior View
Muscle
Origin
Insertion
Actions
Biceps brachii
Superior margin of glenoid fossa, coracoid process of scapula
Radial tuberosity of radius and bicipital aponeurosis
Flexes elbow, weakly flexes
GHJ, supinates hand
Triceps brachii
Infraglenoid tubercle of scapula
Olecranon process of ulna
Extends elbow, adducts and extends GHJ
Deltoid
Latral 1/3 of clavicle, lateral aspect of acromonion process, inferior edge of scapular spine
Deloid tuberosity of humerus
Adducts arm, assists in flexion, horizontal adduction
BIOSCI 202 Lab – Fall 2023
Muscles of the upper limb - forearm
Muscles to identify: Extensor digitorum
Flexor digitorum superficialis
5
Anterior View
Posterior View
Muscle
Origin
Insertion
Actions
Extensor digitorum
Lateral epicondyle of humerus
4 tendons to the dorsal surfaces of the base f middle and distal phalanges of fingers 2-5
Extends digits 2-5 at metacarpohalangeal joints and wrists
Flexor digitorum
superficialis
Medial epicondyle of humerus, coronoid process of ulna
4 tendons that divide and attach to the sides of medial phalanges of fingers 2-5
Flexes digits at MCP & PIP
BIOSCI 202 Lab – Fall 2023
Muscles of the Internal Pelvis Muscles to Identify: Iliopsoas Muscle
Origin
Insertion
Actions
Iliopsoas
Iliacus: inner surface of ilium
Psoas Major/Minor:
Vertebral bodies of T12-
L1
Iliacus:
Lessr trochanter of femur
Psoas Major/Minor:
Major: lesser trochanter of femur
Minor: pectineal line and iliopectineal eminence
Flexion of the hip,
external rotation of femur
6
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BIOSCI 202 Lab – Fall 2023
Muscles of the lower limb
Muscles to identify: Gluteus maximus
Gastrocnemius
Rectus femoris
Tibialis anterior
Biceps femoris
7
Anterior View
BIOSCI 202 Lab – Fall 2023
8
Muscle
Origin
Insertion
Actions
Gluteus maximus
Posterior ¼ of iliac crest; posterior surface of sacrum and coccyx near ilium; lumbar fascia
Oblique ridge of lateral surface of greater trochanter and
iliotibial band of fasci latae
Stabilizes trunk in hip extension; extension & external rotation of hip
Rectus femoris
Anterior surface of inferior iliac spine and
superior and posterior margin of acetabulum
Superior aspect of paella and patellar tendon to tibial tuberosity
Extension of the knee, flexion of the hip
Biceps femoris
Ichial tuberosity and linea aspera
Head of fibula and lateral condyle of tibia
Flexes knee and extends
hip
Gastrocnemius
Medial and lateral condyles of femur
Calcaneus
Plantar flexion
Tibialis anterior
Lateral condyle of tibia
Medial cuneiform and 1
st
metatarsal
Dorsiflexes and inverts food
BIOSCI 202 Lab – Fall 2023
9
Posterior View
Anterior View
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BIOSCI 202 Lab – Fall 2023
Muscles of the Rotator Cuff
Muscles to Identify:
Supraspinatus
Infraspinatus
Teres minor
Subscapularis Muscle
Origin
Insertion
Actions
Supraspinatus
Supraspinous fossa of scapula
Greater tubercle of humerus
Stabilizes GHJ
Infraspinatus
Infraspinous fossa of the scapula
Greater tubercle of humerus
External rotation,
stabilizes and extension of
GHJ
Teres minor
Lateral border of scapula
Greater tubercle of humerus
External rotation and
stabilizes GHJ
Subscapularis
Subscapular fossa
Lesser tubercle of humerus
Stabilizes GHJ
10
Color the top 20 muscles on the images below:
Pectoralis major
Latissimus dorsi
Deltoid
Biceps brachii
Triceps brachii
Extensor digitorum
Gluteus maximus
Rectus femoris
Biceps femoris
Gastrocnemius
Tibialis anterior
Flexor digitorum superficialis
BIOSCI 202 Lab – Fall 2023
11
BIOSCI 202 Lab – Fall 2023
Clean-Up Procedure:
Remove all large pieces of clay from skeleton model. Place clay back into clay bin.
Using brushes provided, please remove all bits of clay from the skeleton models. HOT water and soap work best.
Clean all the tools, dry them, and return them to the containers.
Make sure the clay is in its container and is NOT rolled into a giant ball.
Make sure there is no clay on the floor. Please scrape off any on the floor.
Make sure all the clay pictures are in the binder.
Put everything back into a bin and push your chairs in before you leave.
12
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