Hand

Question 1

Dorsum of the skin is innervate by

Answer 1

Ulnar nerve and radial nerve

Question 2

Palmar surface of the skin innervated by

Answer 2

Median nerve mostly and ulnar nerve

Question 3

Carpal arch is formed

Answer 3

Laterally by tubercle of trapezium and scaphoid and medically by hook of hammate and pisiform

Question 4

List carpal bones from lateral to medial

Answer 4

Scaphoid, lunnate, triquetium, pisiform for proximal

Trapezium, trapezpid, capitate, hammate for distal

Question 5

Veinous drainage of dorsum of hand?

Answer 5

Cephalic vein

Question 6

Anatomical snuffbox

Answer 6

It is a triangular depression on the posterolateral aspect of the wrist and first metacarpal

Question 7

Borders of anatomical snuffbox

Answer 7

Laterally by APL and EPB
Medial border is EPL
Floor by scaphoid and trapezium and extensor carpus radialis longus and extensor carpus radialis brevis

Question 8

Contents of anatomical snuffbox

Answer 8

Radial artery
Superficial branch of radial nerve
Cephalic vein and dorsal veinoue arch of the hand(in the subcutaneous tissue)

Question 9

What is the natatory ligament

Answer 9

Superficial transverse metacarpal ligament

Question 10

Chronic damage to palmar apponeurosis resulting in fibrosis and shortening of fibres pulling hand into a FIXED FLEXED POSITION is known as

Answer 10

Dupuytren’s contracture

Question 11

Medial 4 fingers have 2 long tendons in each digital flexor sheath and thumb has 1. What is it?

Answer 11

Flexor digitorium profundus, flexor digitorum superficial. Thumbs has flexor pollicis longus

Question 12

Common flexor sheaths contain

Answer 12

The superficial and deep flexor tendons

Question 13

Common flexor sheath extends about …. cm into the distal part of the forearm

Answer 13

2.5

Question 14

The common flexor sheath is closed on…side and open from… side. What is the clinical importance

Answer 14

Closed on medial and open on lateral side
Clinical importance is that infection in little finger and thumb can extend into forearm bc synovial sheath is continuous

Question 15

Lower segment of cord supply… muscles and higher segment of cord supply… muscles

Answer 15

Distal

Proximal

Question 16

What are the intrinsic muscles of the hand

Answer 16

Palmaris brevis
Hypothenar 
Thenar (look more into this
Abductor Pollicis
Lumbricals 
Palmar and dorsal interrosei

Question 17

All intrinsic muscles are supplied by deep branch of the ulnar nerve except

Answer 17

3 thenar muscles and 2 lateral lumbricals innervated my the median nerve

Question 18

Lumbrical muscles function

Answer 18

Extend both interphalangeal joints and flex MCP

Question 19

Nerve supply of lumbroxal muscles

Answer 19

Medial two by ulnar nerve and lateral 2 by median nerve

Question 20

Important of lumbrical muscles

Answer 20

Orignate from 4FDP tendons if the palm and pass dorsally around the lateral side of each finger’s MCP joints.

Question 21

Dorsal interroseuous muscles action

Answer 21

Spread the fingers. Abduct fingers away from midline

Question 22

Nerve supply of dorsal interosseous muscles

Answer 22

Deep branch of ulnar nerve

Question 23

Important info on dorsal interroseuous

Answer 23

4

Each arise by 2 heads from adjacent metacarpal bones

Question 24

Distribution of palmar interosseous muscles

Answer 24

Thumb may or may not have. Middle finger doesn’t have. Index finger medial side, ring finger, little finger

Question 25

Nerve supply of palmar interosseous muscle

Answer 25

Deep branch of ulnar nerve

Question 26

Fascia of the palm continuous with

Answer 26

Antebrachial fascia

Question 27

Palmar aponeurosis is…

Answer 27

Triangular condensation of the deep fascia of the palm. Continues with palmaris longus tendon. Longitudinal bands continuous with this as well

Question 28

The radial artery supplies?

Answer 28

The thumb and the lateral side of the index finger

Question 29

Ulnar artery supplies

Answer 29

The third to fifth digits and the medial side of the index finger

Question 30

Superficiak palmer arch is formed by

Answer 30

Superficiak palmar branches of ulnar and radial arteries. Ulnar more dominant

Question 31

SPA gives rise to …

Answer 31

3 common palmar digital arteries

Question 32

Common palmar digital arteries give rise to

Answer 32

Proper palmar digital arteries

Question 33

Terminar branches of ulnar nerve

Answer 33

Superficial palmar branch and keep palmar branch11

Question 34

Course of radial artery?

Answer 34

Curves round scaphoid and trapezium

Crosses floor of anatomical snuffbox

Question 35

Radial artery enters the palm by…

Answer 35

Passing between the heads of the 1st dorsal interosseous muscle and the 2 heads of adductor pollicis

Question 36

Deep palmar arch is…to superficial palmar arch

Answer 36

Proximal

Question 37

Branches of the radial artery

Answer 37

First carpal branch
First dorsal metacarpal artery
Princess pollicis artery
Radialis indicis artery

Question 38

Branches of deep palmar arch

Answer 38

3 palmar metacarpal arteries

Perforating branches

Question 39

Veins of the hand are drained by the

Answer 39

Cephalic and basilic vein. Basilic vein on the medial side

Question 40

Median nerve innervates?

Answer 40

Skin on the lateral three and one half digits and skin and of the dorsal aspect of the phalanges of the same digits.
Thenar muscles
2 lateral lumbricals

Question 41

Ulnar nerve enters hand anterior to

Answer 41

Flexor reticulum

Question 42

Superficial branch of ulnar nerve supplies?

Answer 42

Palmaris brevis and skin of the palmar surface of the 5th and medial half of the 4th digit

Question 43

Superficial branch of radial nerve supplies?

Answer 43

The skin of the dostum of the lateral 3 and half digits proximal to terminal interphalangeal digits