Appendicular Muscles - Chapter 12

Question 1

What is the function of the appendicular muscles?

Answer 1

move the upper and lower limbs and stabilize pectoral and pelvic gridles

Question 2

What is the function of the pectoral girdle?

Answer 2

stabilize the scapula during vigorous activities

Question 3

Muscles of the pectoral girdle

Answer 3

Pectoralis major, serratus anterior, subclavius, trapezius, levator scapulae, rhomboid minor, rhomboid major

Question 4

Muscles that move the glenohumeral joint/arm all insert on what?

Answer 4

humerus

Question 5

Which 2 muscles have their origins in the axial skeleton?

Answer 5

latissimus dorsi and pectoralis major

Question 6

Which 9 muscles have their origins on the scapula?

Answer 6

Deltoid, coracobrachialis, teres major, triceps bachii, biceps brachii, rotator cuff muscles

Question 7

What (4) muscles are part of the rotator cuff?

Answer 7

Subscapularis, infraspinatus, teres minor, supraspinatus

Question 8

Which muscles are the flexors of the forearm?

Answer 8

biceps brachii, brachialis, brachioradialis

Question 9

Which muscles are the extensors of the forearm?

Answer 9

triceps brachii and anconeus

Question 10

What movement do the pronator teres and pronator quadratus cause the forearm?

Answer 10

pronate the forearm

Question 11

What movement does the supinator cause the forearm?

Answer 11

supinates the forearm

Question 12

Muscles that move the wrist joint, hand, and fingers originate on the forearm

Answer 12

extrinsic muscles

Question 13

muscles on the anterior forearm produce what movement of the wrist, hand, and fingers?

Answer 13

flexion

Question 14

muscles on the posterior forearm produce what movement of the wrist, hand, and fingers?

Answer 14

extension

Question 15

tendons of muscles that cross over the anterior surface of the carpal bones are held in place by what?

Answer 15

flexor retinaculum

Question 16

The space between the carpal bones and flexor retinaculum is called?

Answer 16

carpal tunnel

Question 17

Muscles of the anterior forearm cause what movement?

Answer 17

flexion (flexors)

Question 18

Muscles of the posterior forearm cause what movement?

Answer 18

extension (extensors)

Question 19

Intrinsic muscles of the hand are split into 3 groups

Answer 19

thenar, hypothenar, and midpalmer group

Question 20

The thenar group affects the motion of the

Answer 20

thumb

Question 21

The hypothenar group affects the motion of the

Answer 21

fingers

Question 22

The midpalmer group affects the motion of

Answer 22

all fingers and the thumb

Question 23

What motion do the anterior thigh muscles cause?

Answer 23

flex the hip joint/hip and extend knee joint/leg

Question 24

What motion do the medial thigh muscles cause?

Answer 24

adduct the thigh

Question 25

What motion(s) do the lateral thigh muscles cause?

Answer 25

adduct and medially rotate thigh

Question 26

What motion(s) do the posterior thigh muscles cause?

Answer 26

extend and rotate the hip joint/thigh; for knee joint and leg: flexion

Question 27

Which 3 muscles are collectively known as the hamstring?

Answer 27

biceps femoris, semimembranous, and semitendinous

Question 28

Crural muscles are muscles that move which part of the legs?

Answer 28

ankle, foot, and toes

Question 29

What are the 3 compartments of the crural muscles?

Answer 29

Anterior, Lateral, Posterior

Question 30

Which crural muscle compartment dorsiflex the foot and extend the toes?

Answer 30

Anterior compartment

Question 31

Which crural muscle compartment are levertors of the foot and weak planar flexors?

Answer 31

Lateral compartment

Question 32

Which crural muscle compartment plantar flex the foot and ankle?

Answer 32

posterior compartment