Appendicular Musculature

Question 1

Muscles that stabilize the pectoral girdle

Answer 1

Subclavius, deltoids, pectoralis major, pectoralis minor, serratus anterior
Deltoid, trapezius, rhomboid minor or major

Question 2

Lateral rotation of scapula

Answer 2

Trapezius superior and serratus anterior

Question 3

Medial rotation of scapula

Answer 3

Levator scapulae
Rhomboid major and minor

Question 4

Elevation of the scapulae

Answer 4

Levator scapulae
Trapezius superior
Rhomboid major and minor

Question 5

Depression of the scapulae

Answer 5

Trapezius inferior
serratus anterior

Question 6

Retraction

Answer 6

Rhomboid minor and major
Trapezius

Question 7

Protraction of the scapulae

Answer 7

Pectoralis minor and serratus anterior

Question 8

Rotator Cuff Muscles

Answer 8

Supraspinatus elevates the shoulder joint to the side
Infraspinatus externally rotates the shoulder joint
Teres minor externally rotates the shoulder joint
Subscapularis allows humerus to move freely during elevation of the arm
Each have tendons

Question 9

Muscles acting on the arm

Answer 9

Pectoralis major flexes, adducts and medially rotates humerus
Deltoid can flex and medially rotate, abduct, or extend and laterally the arm depending on which fibers are active

Question 10

Muscles acting on the Arm

Answer 10

Teres major extends and medially rotates humerus
Latissimus dorsi adducts and medially rotates humerus, extends shoulder joing

Question 11

Muscles acting on the forearm

Answer 11

Brachialis is the prime mover for elbow flexion
Biceps brachii supinates forearm and flexes both elbow and shoulder
Brochioradialis flexes the elbow
Triceps brachii extends the elbow

Question 12

Action of rotator muscles on the forearm
Supination

Answer 12

Supinator and biceps brachii supinate forearm

Question 13

Action of rotator muscles of the forearm

Answer 13

Pronator teres and pronator quadrutus pronate( warps around ulna and radius) forearm

Question 14

Posterior compartment of the muscles

Answer 14

Extends the wrist (carpus), fingers (digits), and thumb (pollex)

Question 15

Anterior compartment muscles

Answer 15

flex the wrist (carpus), fingers (digits), and thumb (pollex)

Question 16

Intrinsic muscles of the hand

Answer 16

Abductor pollicis brevis is part of the thenar group at the base of the thumb.
Abductor digiti minimi part of the hypothenar group at the base of the little finger

Question 17

Muscles of the thumb pollex

Answer 17

Flexor pollicis brevis
Abductor pollicis brevis
Opponens policis

Question 18

The three middle fingers

Answer 18

First dorsal interosseous, abductor pollicis and lumbricals

Question 19

Muscles of the small finger minimi

Answer 19

Opponens digiti minimi
Flexor digiti minimi
Abductor digiti minimi

Question 20

Instrinsic muscles of the hand

Answer 20

Palmar interosseous, opponens digiti minimi, opponens policis

Question 21

Instrinsic muscles of the hand, dorsal aspect

Answer 21

Abductor pollicis brevis, dorsal interosseous, abductor digiti minimi

Question 22

Muscles that act on the hip and femur

Answer 22

Iliopsoas consist of the iliacus and the psoas major that flex the thigh

Question 23

Medial compartment of the thigh contains

Answer 23

Adductors move it medially

Question 24

Posterior gluteal and thigh muscles

Answer 24

Gluteus maximus extends and abducts the thigh
Gluteus medius and gluteus minimus abduct and medially rotate the thigh

Question 25

What extends the knee and has for muscles in the anterior compartment

Answer 25

Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

Question 26

What flexs the knee

Answer 26

Hamstring muscles flex the knee and are posteriors with posterior compartment
Biceps femoris, semitendinosus, semimembranous

Question 27

Muscles of the leg, anterior compartment

Answer 27

Anterior compartment muscles dorsiflex the foot and extend the toes (hallux and digits)

Question 28

Superficial muscles of the leg, posterior compartment

Answer 28

posterior muscles plantar flex the foot and flex the toes

Question 29

Deep muscles of the leg, posterior and lateral compartments

Answer 29

Flexor digitorum longus and flexor hallucis longus and tibialis posterior

Question 30

Instrinsic muscles of the foot

Answer 30

Provide arch support and aid in locomotion
Ventral inferior muscles help flex the toes