Antebrachium and Elbow

Question 1

what is the common origin of the anterior compartment muscles?

Answer 1

the medial epicondyle of the humerus

Question 2

common fcn of the anterior antebrachium?

Answer 2

wrist and digit flexion

Question 3

innervation of the anterior antebrachium?

Answer 3

median and ulnar nerves

Question 4

flexor digitorum superficialis flexes what?

Answer 4

middle phalanges of medial four fingers

Question 5

flexor digitorum superficialis innervated by?

Answer 5

median nerve

Question 6

what are the 4 deep muscles of the anterior antebrachium?

Answer 6

1 ulnar head of pronator teres
2 flexor digitorum profundus
3 flexor pollicis longus
4 pronator quadratus

Question 7

muscles of the posterior antebrachium function to?

Answer 7

wrist and hand extensors

Question 8

common origin of muscles of the posterior antebrachium?

Answer 8

lateral epicondyle of humerus

Question 9

ALL muscles of the posterior forearm (antebrachium) are innervated by what nerve?

Answer 9

radial nerve

Question 10

when you see “extensor” and “brachioradialis” think of what nerve?

Answer 10

radial nerve

Question 11

pronator quadratus: proximal attachment

Answer 11

distal third of ulna

Question 12

pronator quadratus: distal attachment

Answer 12

distal third of radius

Question 13

pronator quadratus: action

Answer 13

pronates forearm, helps interosseous membrane hold radius and ulna together

Question 14

pronator quadratus: innervation

Answer 14

medial nerve

Question 15

pronator teres: proximal attachment

Answer 15

ulnar head: coronoid process

humeral head: medial epicondyle and supracondular ridge

Question 16

pronator teres: distal attachment

Answer 16

middle third of lateral surface of radius

Question 17

pronator teres: action

Answer 17

pronates forearm, flexes anterbrachium

Question 18

pronator teres: innervation

Answer 18

medial nerve

Question 19

ulnar nerve supplies

Answer 19

flexor carpi ulnaris and half of flexor digitorum profundus (everything else NOT supplied by pronator medial nerve)

Question 20

largest of the 2 terminal branches of the brachial artery, passes superficial to flexor retinaculum

Answer 20

ulnar artery

Question 21

smallest terminal branch of brachial artery, winds dorsally through anatomical snuff-box, pierces first dorsal interosseous muscle

Answer 21

radial artery

Question 22

type of joint for elbow complex

Answer 22

hinge joint, uniaxial

Question 23

3 types of joints of the elbow complex

Answer 23

1 humeroulnar joint
2 humeroradial joint
3 radioulnar joint

Question 24

function of the elbow complex

Answer 24

antebrachium extension and flexion and antebrachium supination and pronation

Question 25

attached to ulna, forms sling around neck of radius

Answer 25

annular ligament

Question 26

lateral (radial) collateral: slack ligaments results in

Answer 26

varus deformity

Question 27

medial (ulnar) collateral: slack ligaments results in

Answer 27

valgus deformity

Question 28

how man degrees deviation of antebracium in men

Answer 28

5

Question 29

how man degrees deviation of antebracium in women

Answer 29

10-15