Hands

Question 1

What are the nerves which supply the hand?

Answer 1

Radial nerve, median nerve and ulnar nerve.

Question 2

Where do the nerves that supply the hand originate from?

Answer 2

at the shoulder

Question 3

What does the radial nerve supply in the hand?

Answer 3

Thumb to 3rd finger

Question 4

What does the median nerve supply in the hand?

Answer 4

Thenar muscles

Question 5

What does the ulnar nerve supply in the hand?

Answer 5

• Little finger
• Ring finger
• Hypothenar muscles
• Adductor policis

Question 6

What does the ulnar nerve have to travel through?

Answer 6

Guyon’s canal formed by pisiform and the hamate

Question 7

What does each finger have?

Answer 7

A sensory nerve on each side called digital nerves and supply sensation

Question 8

What does the radial artery supply in the hand?

Answer 8

Supplies hand with blood, travels along wrist closest to the thumb

Question 9

Where does the ulnar artery run?

Answer 9

next to the ulnar nerve in Guyon’s canal.

Question 10

What do the ulnar and medial artery form and what does it supply?

Answer 10

Palmar arch supplying front of hand, fingers and thumb

Question 11

What increases the stability of the interphalangeal joints?

Answer 11

close congruency of the surfaces

Question 12

Why does the proximal phalanges have a bioconcave surface at the place it articulates with metacarpal heads?

Answer 12

To articulate well and with stability

Question 13

Why is the distal metacarpal heads rounded rather than pulley-shaped?

Answer 13

allows for more mobility from the metacarpophalangeal joint but has less bone stability

Question 14

What are the arches that are present in the hand formed by the bones?

Answer 14

longitudinal arch and two lateral arches

Question 15

What does the arch near the carpus form and what does it do?

Answer 15

The carpal tunnel. It protects and supports the finger flexon tendons and median nerve

Question 16

What does the tunnel of guyon contain?

Answer 16

ulnar artery and nerve and can be the site of compression injury

Question 17

Why is the trapeziometacarpal joint often known as the key joint of the hand?

Answer 17

there is a wide range of movement here including flexion/extension, adduction/abduction, opposition/circumduction

Question 18

What movement does the pisiform-triquetral joint produce?

Answer 18

small amount of gliding

Question 19

What movement does the ulna-menisco-triquetral joint produce?

Answer 19

gliding, supination/pronation

Question 20

What does the ulna-menisci-triquetral joint not contain?

Answer 20

a capsule and a synovial cavity

Question 21

What are the ligaments attached to the radiocarpal joint?

Answer 21

• volar radiocarpal
• volar ulnocarpal
• dorsal radiocarpal
• radial collateral
• ulnar collateral

Question 22

What are the ligaments attached to the midcarpal joint?

Answer 22

volar and dorsal intercarpal
interosseous

Question 23

What are the ligaments attached to the carpometacarpal joint?

Answer 23

volar and dorsal carpometacarpal
intermetalcarpal

Question 24

What are the ligaments attached to the trapezio-carpometacarpal joint

Answer 24

• lateral, volar and oblique ligaments

Question 25

What are the joint located in the hand?

Answer 25

- carpometacarpal joints - metacarpal -phalangeal joints - interphalangeal joints

Question 26

What are the carpometacarpal joints?

Answer 26

between distal carpal bones and metacarpal bones

Question 27

What ligaments attach to the carpometacarpal joint on finger 2,3,4,5?

Answer 27

anterior, posterior and interosseus ligaments

Question 28

What ligaments attach to the carpometacarpal joint at the thumb?

Answer 28

radial and metacarpal and oblique ligament

Question 29

Where is the metacarpal-phalangeal joint located?

Answer 29

between metacarpal and proximal interphalangeal bones

Question 30

What ligaments are present at the metacarpal-phalangeal joint in finger 2,3,4,5?

Answer 30

Palmer, collateral and deep transverse ligament

Question 31

What ligament is attached at the thumb at the metacarpal-phalangeal joint?

Answer 31

palmer and collateral joint

Question 32

What movements are produced at the metacarpal-phalangeal joint?

Answer 32

flexion/extension, adduction/abduction

Question 33

Where are interphalangeal joints located?

Answer 33

between phalanges. There are two types - distal and proximal phalanges. Only one of these joints are located in the thumbW

Question 34

What ligaments are present at the interphalangeal joints?

Answer 34

palmar and collateral ligaments

Question 35

What movement is produced at the interphalangeal joint?

Answer 35

flexion/extension

Question 36

What movements are produced at the Metacarpal-phalangeal joint and the interphalangeal joint at the thumb?

Answer 36

flexion and extension

Question 37

What joint produces abduction and adduction movements in the thumb?

Answer 37

carpometacarpal joint

Question 38

What joint produces opposition movement in the thumb?

Answer 38

carpometacarpal joint