Lab 7&8 Muscles

Question 1

Identify muscle and action

Answer 1

Rectus abdominis, flexion of vertebral column

Question 2

Identify muscle and action

Answer 2

External oblique, rotates trunk of body

Question 3

Identify muscle and action

Answer 3

External intercostals, elevate ribs during inhalation

Question 4

Identify muscle and action

Answer 4

Serratus posterior, depress ribs during forced exhalation

Question 5

Identify muscle and action

Answer 5

Pectoralis major
Flexion, adducts, and medially rotates at shoulder

Question 6

Identify muscle and action

Answer 6

Pectoralis minor, flexion, adducts, and medially rotates at shoulder

Question 7

Identify muscle and action

Answer 7

Serratus anterior, protracts shoulder

Question 8

Identify muscle and action

Answer 8

Trapezius, elevates scapula and clavicle, extends neck

Question 9

Identify muscle and action

Answer 9

Levator scapulae, elevates scapula

Question 10

Identify muscles and actions

Answer 10

Romboid major and minor (major is the bigger one), adducts scapula

Question 11

Identify muscle and action

Answer 11

Deltoid, abducts arm, flexes, and extends shoulder

Question 12

Identify muscle and action

Answer 12

Supraspinatus, abducts the shoulder

Question 13

Identify muscle and action

Answer 13

Orbicularis oculi, closes eye in blinking, sleeping, and squinting

Question 14

Identify muscle and action

Answer 14

Zygomaticus major, draws mouth upward and laterally in laughing

Question 15

Identify muscle and action

Answer 15

Buccinator, compresses cheek against teeth and gums.

Question 16

Identify muscle and action

Answer 16

Orbicularis Oris, closes lips and protrudes lips

Question 17

Identify muscle and action

Answer 17

Sternocleidomastoid, rotation of neck, bilateral action for facing head down

Question 18

Identify muscles and action

Answer 18

Anterior, middle, and posterior scalenes, unilateral contraction causes ipsilateral flexion of contralateral flexion

Question 19

Identify muscle and action

Answer 19

Sternohyoid, depressed hyoid after it has been elevated

Question 20

Identify muscle and action

Answer 20

Infraspinatus, lateral rotation at shoulder

Question 21

Identify muscle and action

Answer 21

Latissimus dorsi, extension, adduction, and medial rotation at shoulder

Question 22

Identify muscle and action

Answer 22

Teres major, extension of shoulder

Question 23

Identify

Answer 23

Meniscus

Question 24

Identify

Answer 24

Articular cartilage

Question 25

Identify

Answer 25

Joint capsule or fibrous capsule

Question 26

Identify

Answer 26

Joint cavity filled with synovial fluid

Question 27

Identify

Answer 27

Synovial membrane

Question 28

Identify (on knee)

Answer 28

Prepatellar bursa

Question 29

Identify muscle and action (inside shoulder)

Answer 29

Coracobrachialis, adduction and flexion at shoulder

Question 30

Identify muscle and action

Answer 30

Biceps brachii

Question 31

Identify muse and action (inside elbow)

Answer 31

Brachialis, flexion at the elbow

Question 32

With biceps brachii removed, what muscle are we looking at?

Answer 32

Brachialis

Question 33

Identify muscle and action (posterior forearm)

Answer 33

Brachioradialis,flexion at the elbow

Question 34

Identify muscle and action (back of shoulder and elbow)

Answer 34

Triceps brachii, extension at the elbow

Question 35

Identify muscle and action (two on top middle/left)

Answer 35

Extensor Carpi radialis (brevis and longus), wrist extension and abduction

Question 36

Identify muscle and action

Answer 36

Extensor digitorum, extends wrist

Question 37

Identify muscle and action (back of forearm)

Answer 37

Extensor Carpi ulnaris, wrist extension and adduction

Question 38

Identify muscle and action (back of forearm)

Answer 38

Anconeus, extension at the elbow

Question 39

Identify muscle and action (front of arm)

Answer 39

Palmaris Longus, wrist flexion

Question 40

Identify muscle and action

Answer 40

Flexor Carpi radialis, wrist flexion and abduction

Question 41

Identify muscle and action

Answer 41

Pronator teres

Question 42

Identify muscle and action

Answer 42

Flexor Carpi ulnaris, wrist flexion and adduction

Question 43

Identify muscle and action

Answer 43

Adductor Magnus, adducts leg

Question 44

Identify muscle and action

Answer 44

Gracilis, adducts leg

Question 45

Identify muscle and action

Answer 45

Adductor Longus, adducts leg

Question 46

Identify muscle and action

Answer 46

Sartorius, knee flexion, hip flexion, abducts hip

Question 47

Identify muscles and actions

Answer 47

Top, gluteus medius (abduction and medial hip rotation) Bottom, gluteus maximus (hip extension and lateral rotation)

Question 48

Identify muscle and action (top marker)

Answer 48

Tensor fasciae latae, flexes hip, medially rotates and abducts hip

Question 49

Identify muscle and action (anterior view of thigh) (top marker)

Answer 49

Rectus femoris, knee extension

Question 50

Identify muscle and action (anterior thigh) (left marker)

Answer 50

Vastus medialis, extend leg at the knee

Question 51

Identify muscle and action (anterior thigh) bottom right marker)

Answer 51

Vastus lateralis, extend leg at the knee

Question 52

Identify muscle and action (posterior thigh) (green muscle)

Answer 52

Biceps femoris, hip extension or knee flexion

Question 53

Identify muscle and action (posterior thigh)

Answer 53

Semimembranosus, hip extension or knee flexion

Question 54

Identify muscle and action (posterior thigh)

Answer 54

Semitendinosus, hip extension or knee flexion

Question 55

Identify muscle and action

Answer 55

Tibialis anterior, inversion of the foot and dorsiflexion

Question 56

Identify muscle and action

Answer 56

Peroneus Longus, eversion of the foot

Question 57

Identify muscle and action (bottom marker)

Answer 57

Extensor digitorum Longus, extension of toes

Question 58

Identify muscles and actions (top two markers) (calf)

Answer 58

Gastrocnemius and soleus, plantar flexion of foot