Forearm and Dorsum of Hand

Question 1

bones of the forearm

Answer 1

ulna
radius

Question 2

ulna bone articulations

Answer 2

articulates with humerus via the olecranon and coronoid process and radius via the radial notch
Distal end is the styloid process.

Question 3

radius bone articulatoins

Answer 3

Proximal end: head, neck, and tuberosity
The head of the radiusarticulates with the:
Capitulum of the humerus
Radial notch of the ulna
Thedistal part of the radius is thestyloid process

Question 4

whats is the fibroud interosseous membrane

Answer 4

courses between the radius and ulna

Question 5

palpable bones of the forearm

Answer 5

styloid process of radius
head and styloid process of ulna
head of radius

Question 6

what is the subital fossa

Answer 6

Triangular area on the anterior surface of the elbow

Question 7

whats the medial border of cubital fossa

Answer 7

pronator teres

Question 8

whats the lateral border of cubital fossa

Answer 8

brachioradialis

Question 9

whats the superior border of cubital fossa

Answer 9

an imaginary lines between lateral and medial epicondyls

Question 10

contents of cubtital fossa

Answer 10

biceps tendon
biceps artery
median nerve
brachial veins

Question 11

arteries of the forearm

Answer 11

bifurcation of the brachial a.
ulnar a.
radial a.

Question 12

ulnar artery

Answer 12

palpated on lateral side of the flexor carpi ulnaris (FCU) tendond
gived the common interosseous artery

Question 13

teres major is the transition site of the axillary artery into the

Answer 13

brachial artery

Question 14

median nerve sensory distribution

Answer 14

lateral aspect of palm of hand and lateral 3.5 digits
tips of lateral 3 fingers on dorsum of hand

Question 15

median nerve motor suppy

Answer 15

most anterior forearm muscles
most thenar muscles in the hand
lumbricals 1 and 2

Question 16

ulnar nerve motor supply

Answer 16

flexor carpi ulnaris,
medial 1.5 of flexor digitorum profundus,
hypothenar muscles,
all intrinsic hand muscles except those innervated by median nerve

Question 17

ulnar nerve sensory distribution

Answer 17

medial aspect of palm and dorsum of hand,
palmar and dorsal aspects of 1.5 digits

Question 18

radial nerve supplies

Answer 18

the extensor (posterior) comparment

Question 19

the radial nerve emerges in the forearm by

Answer 19

traveling between the brachialis and brachioradialis

Question 20

branches of radial nerve

Answer 20

deep (motor) and superficial (sensory) branches

Question 21

T or F injury to the radial nerve is uncommon

Answer 21

T

Question 22

the lateral epicondyle is the common origin for

Answer 22

extensor muscles

Question 23

the medial epicondyle is the common origin for

Answer 23

flexor muscles

Question 24

what separates the flexors from the extensors

Answer 24

the radius and ulna along with the interosseous membrane

Question 25

interphalangeal joints (IP)

Answer 25

hinge joints (synovial) proximal (PIP) distal (DIP)

Question 26

movements of the wrist

Answer 26

flexion extension abduction (radial deviation) adduction (ulnar deviatio) pronation supination

Question 27

abduction (radial deviatoin) of the wrist involves

Answer 27

syngerists activity of the flexor carpi radialis and the extensor carpi radialis brevis and longus

Question 28

adduction (ulnar deviation) of the wrist involves

Answer 28

syngeristic activity of the flexor carpi ullnaris and the extensor carpi ulnaris

Question 29

movements of the fingers

Answer 29

hyperextension extension flexion

Question 30

Superficial anterior forearm muscles

Answer 30

flexor carpi radialis flexor carpi ulnaris pronator teres palmaris longus

Question 31

intermediate ant. forearm muscles

Answer 31

flexor digitorum superficialis (flexes at wrist, MCP, PIP)`

Question 32

deep ant. forearm muscles

Answer 32

flexor digitorum profundus flexor pollicis longus prontator quadratus

Question 33

superior posterior forearm muscles

Answer 33

extensor carpi radialis (brevis and longus) extensor carpi unlaris brachioradialis extensor digitorum extensor digiti minimi

Question 34

deep posterior forearm muscles

Answer 34

supinator extensor indicis abductor pollicis longus extensor pollicis longus extensor pollicis brevis

Question 35

nerve in carpal tunnel

Answer 35

median nerve is compressed causing tingling or diminshed/loss of sensation in lateral 3.5 digits

Question 36

dorsum of the hand muscles

Answer 36

dorsal interossei muscles

Question 37

radial fossa contents

Answer 37

radial artery

Question 38

medial border of radial fossa

Answer 38

extensor pollicis longus

Question 39

lateral border of radial fossa

Answer 39

extensor pollicis brevis and abductor pollicis longus

Question 40

T or F radial nerve in the hand does not supply any hand muscles

Answer 40

T

Question 41

The superficial branch of the radial nerve is enitrely sensory or motor

Answer 41

sensory