Palm of hand

Question 1

proximal row of carpal bones (lateral-medial)

Answer 1

scaphoid
lunate
triquetrum
pisiform

Question 2

distal row of carpal bones (lat-med)

Answer 2

trapezium
trapezoid
capitate
hamate

Question 3

carpal tunnel

Answer 3

allows passage of the flexor tendons and median nerve into the palm of the hand

Question 4

flexor retinaculum

Answer 4

attaches medially to the perform and hook of the hamate, laterally to the trapezium and scaphoid

Question 5

Palmar aponeurosis

Answer 5

Extends from a flexor retinaculum to the head of the metacarpals to the head of the metacarpals,
where it divides into the four longitudinal bands, adhearing the fibrous tissue of the proximal phalanges

Question 6

FDS and FDP tendons

Answer 6

enter in common synovial sheath deep to the flexor retinaculum, and Palmar aponeurosis

enter Osseofibrous, digital tunnels in a synovial membrane covers tendons within the tunnel

Tunnels are composed of fibrous, connective tissue, which serve to hold the tendons onto the phalanges

Question 7

synovial sheaths of fingers

Answer 7

digits 1 and 5 synovial sheets that are continuous with a synovial sheets of the palm

Digits 2 3 and 4 terminate about the middle of the palm and are not continuous with a synovial sheets of a palm

Question 8

Thenar muscles

Answer 8

abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis

Question 9

abductor pollicis brevis

Answer 9

O- flexor retinaculum scaphoid and trapezium
I- lateral side of the base of the proximal phalanx
N- recurrent branch of the median nerve (C8, T1)
A- abducts thumb at CMC joint

Question 10

flexor pollicis brevis

Answer 10

O- flexor retinaculum and trapezium
I- lateral side of base of proximal phalanx
N- recurrent branch of medium n (C8, T1)
A- flex thumb

Question 11

opponens pollicis

Answer 11

O- flexor retinaculum and trapezium
I- lateral side of the first metacarpal
N- recurrent branch of median nerve (C8, T1)
A- opposes thumb

Question 12

hypothenar muscles

Answer 12

abductor digiti minimi
Flexor digiti minimi brevis
Opponents digiti minimi

Question 13

abductor digiti minimi

Answer 13

O- pisiform
I- base of proximal phalanx of a fifth digit
N- deep branch of the ulnar nerve (C8, T1)
A- abduction

Question 14

Flexor digiti minimi brevis

Answer 14

O- hamate
I- base of the proximal phalanx of the fifth digit
N- the branch of the ulnar nerve (C8, T1)
A- flexes fifth digit

Question 15

opponens digiti Minimi

Answer 15

O- hamate
I- medial border of fifth metacarpal
N- deep branch of the owner nerve (C8, T1)
A- oppose the fifth digit

Question 16

Adductor pollicis

Answer 16

oblique head
O- carpal bones and bases of metacarpals two and three

Transverse head
O- shaft of the third metacarpal

I- base of the proximal phalanx of thumb
N- ulnar nerve
A- adduct thumb

Question 17

lumbricals

Answer 17

mid Palmar muscles

O- tendons of the FDP
I- lateral side of the extensor expansions
N- lumbricals 1-2 median nerve
Lumbricals 3-4 deep branch of ulnar nerve
A- flex the MP joints and extend the proximal IP joints

Question 18

Palmar interossei

Answer 18

Three

O- sides of the metacarpal bones
I- base of the proximal phalanges and extensor expansion
N- deep branch of ulnar nerve
A- adduct fingers

Question 19

dorsal interossei

Answer 19

four

O- arise via two heads from adjacent sides of metacarpals between which they lie
I- proximal phalanges and extensive expansion
N- deep branch of ulnar nerve
A- abduct fingers at MP joints

Question 20

median nerve of the hand

Answer 20

Enters through carpal tunnel
Supplies motor input to the three thenar muscles and lumbricals one and two

Supply sensory information-
the anterior surface of the digits 12 and 3 and lateral half of digit 4
lateral surface of the palm of the hand

Question 21

ulnar nerve in hand

Answer 21

enters palm on medial side of the wrist through the canal of guyon

supplies motor input
adductor pollicis, lumbricals three and four, and the Palmar and dorsal interossei muscles

sensory information
Medial aspect of palm
Medial aspect of dorsum of the hand
Digits 5 and half of digit 4

Question 22

Radial nerve in hand

Answer 22

enters hand through anatomical snuffbox

Supplies no motor control of the muscles in the hand.

Supply sensory information from the lateral 2/3 of the dorsum of the hand, via the superficial radial branch

Question 23

radial artery

Answer 23

Rins posterior to first digit through the anatomical snuffbox
Enters palm between the heads of the first dorsal interosseous muscles

Gives rise to the princeps pollicis artery, the radialis indicis artery, and forms, the deep Palmar arch

Superficial radial branch- arises from the radial artery before the radial artery enters the anatomical snuffbox, it runs, superficial and joints with a superficial Palmar arch

Question 24

Princeps pollicis artery

Answer 24

Supplies first digit

Question 25

Radialis indicis Artery

Answer 25

Supplies second digit

Question 26

ulnar artery

Answer 26

enters palm through the canal of guyon

Divide into a deep Palmer branch, and superficial Palmer branch which form superficial and deep Palmer arches

Question 27

Digital arteries

Answer 27

Three digital arteries, arise from the superficial and deep Palmar arch