Hand

Question 1

what are the carpal bones starting from the proximal row on the radial side?

Answer 1

Scaphoid
lunate
triquetrum
pisiform

Question 2

what are the carpal bones in the distal row starting from the radial side?

Answer 2

trapezium
trapezoid
capitate
hamate

Question 3

which carpal bone is a sesmoid

Answer 3

pisiform

Question 4

carpal tunnel

Answer 4

area in the wrist made of curved bone and enclosed by thick CT that can become compressed

Question 5

what are the contents and borders of the carpal tunnel

Answer 5

carpal bones and flexor retinaculum (thick CT)
FDS tendons FDP tendons
Median nerve
Flexor pollicis longus tendon

Question 6

Palmar aponeurosis

Answer 6

attaches to skin to keep skin in place when muscles in the palm move
palmaris brevis attaches to this on the medial side

Question 7

Long finger tendons

Answer 7

-tendons of FDS and FDP
-fibrous sheaths on palmar aspects of digits (flexor tendons sheaths containing tendons for FSD and FDP)
-the prevent bowing when the fingers flex and are lined with synovial sheaths to produce synovial fluid

Question 8

Extensor hoods

Answer 8

dorsal digital expansion
tendons of
-extensor digitorum
-extensor pollicis longus
other tendons:
-extensor digiti minimi
-extensor indicis
-extensor pollicis brevis

Question 9

Extensor hoods anatomy
-parts

Answer 9

-triangular in shape
-apex: attaches to distal phalanx
-central region: attaches to middle phalanx (fingers) and proximal phalanx (thumb)
-base: wraps around sides of MCP joint

Question 10

Interossei description

Answer 10

-between metacarpals 1-5
-web space (largest space between 1st and 2nd metacarpals
-two groups dorsal and palmar

Question 11

Dorsal interossei and radial artery interaction

Answer 11

-muslces are bipinnate
radial artery passes dorsal in hand between 2 heads of 1st dorsal interossei

Question 12

what does the radial artery pass through in the hand

Answer 12

2 heads of adductor pollicis
and
2 heads of 1st dorsal interossei

Question 13

Arteries of the hand

Answer 13

-radial (lateral side - thumb and lateral index finger)
-ulnar (medial index finger and fingers 3,4,5)

Question 14

Ulnar artery in the hand

Answer 14

-enters hand on medial side of wrist (lateral to ulnar nerve and pisiform bone)
-forms superficial palmar arch/anastamoses with deep palmar arch

Question 15

radial artery in the hand

Answer 15

-radial artery passes through the anatomical snuff box
-passes between 2 heads of first dorsal interosseous muscle and 2 heads of adductor pollicis
-enters deep plane of palm and forms deep palmar arch

Question 16

Thenar muscles

Answer 16

-opponens pollicis
abductor pollicis
flexor pollicis brevis