forearm/hand

Question 1

At elbow, radius articulates with___ and ulna with__. Posterior ulnar process where triceps insert is___

Answer 1

capitulum, trochlea, olecranon

Question 2

Origin of flexors/extensors

Answer 2

medial epicondyle, lateral epicondyle

Question 3

carpal bones from lateral to medial

Answer 3

scaphoid, lunate, triquetrum, pisiform–trapezium, trapezoid, capitate, hamate

Question 4

attachments of flexor retinaculum of carpal tunnel

Answer 4

hook of hamate, tubercle of trapezium, pisiform, tubercle of scaphoid

Question 5

most common wrist fractures, potential vascular complications

Answer 5

dorsal displacement (dinner fork) of radial styloid process. Scaphoid bone (proximal necrosis

Question 6

all joints with flexion have___ for stability

Answer 6

thickening of capsules called collateral ligaments

Question 7

Ligaments at elbow joint

Answer 7

radial and ulnar (3) collateral ligaments, anular lig of radius

Question 8

MP and IP joints are___axial

Answer 8

bi, uni

Question 9

Pronation muscles, supination muscles

Answer 9

pronator teres and quadratus, supinator

Question 10

three muscles of deep flexor compartment

Answer 10

pronator quadratus, flexor pollicis longus, flexor digitorum profundus

Question 11

brachioradialis

Answer 11

flex elbow, pronate and supinate half way

Question 12

palmar aponeurosis is continuation of ___

Answer 12

palmaris longus

Question 13

recurrent branch of median nerve

Answer 13

motor to thenar, exposed subcutaneous location

Question 14

digit flexor tendons

Answer 14

flexor digitorum profundus and superficialis

Question 15

components of synovial tendon sheaths. where do they terminate?

Answer 15

parietal and visceral layers, mesotendon. 5 attaches to common, 1-4 at MC joint

Question 16

fibrous tendon sheaths

Answer 16

anchor tendons

Question 17

vincula

Answer 17

discontinuous (short) mesotendons

Question 18

carpal tunnel syndrome

Answer 18

swelling of common synovial sheath, compression of median nerve under flexor retinaculum. (-) sensation in lateral 3.5 digits, (-) motor of thumb and lateral 2 lumbricals, normal wrist

Question 19

how to identify flexor pollicis longus

Answer 19

thumb side, unipenate

Question 20

how many extensor digitorum? overuse?

Answer 20

one, tennis elbow

Question 21

extensor muscles of thumb

Answer 21

extensor pollicis longus,brevis, abductor pollicis longus, adductor pollicis

Question 22

fxn of lumbricals, dorsal and palmar interossei

Answer 22

radial deviation, abduct, adduct

Question 23

all three intrinsic muscles attach to ___.

Answer 23

extensor hood. ulnar damage causes claw hand

Question 24

compartment innervations

Answer 24

median-flexor and thenar, ulnar-intrinsic and hypothenar, radial-extensor

Question 25

radial nerve deficit

Answer 25

loss of sensation on post-lat of hand. wrist drop, pronation, chickenwing

Question 26

location of thenar and midpalmar spaces, palmar aponeurosis

Answer 26

deep to flexor tendons, superficial to them

Question 27

termination of radial and ulnar arteries

Answer 27

radial-deep palmar arch, ulnar-superficial palmar arch (most important)

Question 28

list veins of upper extremity

Answer 28

cephalic, basilic, median cubital, median antebrachial