Muscle Actions

Question 1

Rhomboids

Answer 1

Retraction & downward rotation of scapula

Question 2

Levator scapulae

Answer 2

Elevates and retractes scapulae

Question 3

Serratus anterior

Answer 3

Protraction of scapulae

Question 4

Deltoid

Answer 4

Abducts shoulder, flexion of shoulder, medial or internal rotation of shoulder, shoulder posterior abduction

Question 5

Pectoralis Major

Answer 5

Flexes shoulder, extends shoulder, internal or medial rotates shoulder, horizontal adduction, adduction of shoulder

Question 6

Latissimus Dorsi

Answer 6

Extends shoulder, adducts shoulder, internally or medically rotates shoulder

Question 7

Teres Major

Answer 7

Adducts shoulder, extends shoulder, medically rotates shoulder

Question 8

Infraspinatus

Answer 8

Lateral rotation of shoulder

Question 9

Supraspinatus

Answer 9

Abduction of shoulder

Question 10

Teres minor

Answer 10

Adduction of shoulder

Question 11

Subscapularis

Answer 11

Medial rotation of shoulder

Question 12

Trapezius

Answer 12

Elevation & retraction of scapula, rotation & lateral flexion of neck

Question 13

Biceps brachii

Answer 13

Flexion of elbow, supinates forearm, flexion of shoulder

Question 14

Triceps brachii

Answer 14

Extension of elbow, extension of shoulder

Question 15

Anconeous

Answer 15

Extension of elbow

Question 16

Sternocleidomastoid

Answer 16

Flexes cervical spine, laterally rotates cervical spine

Question 17

Erector spinae

Answer 17

Laterally flexes cervical and lumbar spine, extends the neck and back

Question 18

Rectus abdominus

Answer 18

Flexes lumbar spine

Question 19

External obliques

Answer 19

Laterally rotates and flexes trunk

Question 20

Internal oblique

Answer 20

Laterally rotates trunk

Question 21

Iliopsoas

Answer 21

Flexes hip, laterally rotates hip, adducts hip

Question 22

Sartorius

Answer 22

Flexes hip, laterally rotates hip, abducts hip, flexes knee

Question 23

Quadriceps names & actions

Answer 23

Rectus femoris, vastus lateralis, vastus intermedius, vastus medialis; flexion of knee, flexion of hip

Question 24

Gluteus maximus

Answer 24

Extends hip, laterally rotates hip, abduction of hip

Question 25

Hamstrings names & actions

Answer 25

Semimembranosus, biceps femoris, semitendinosus; flexes and extends hip

Question 26

Tensor fascia latae

Answer 26

Flexes, abducts, and medically rotates hip

Question 27

Iliotibial band (IT band)

Answer 27

Abduction of hip

Question 28

Gluteus medius

Answer 28

Hip abduction

Question 29

Adductor longus, brevis & magnus,

Answer 29

Adducts, flexes, and extends thigh and hip

Question 30

Gracilis

Answer 30

Adducts hip, flexes knee, medially rotates knee