Hand

Question 1

Name the carpal bones

Answer 1

Scaphoid, lunate, triquetrum, pisiform, trapizium, trapezoid, capitate, hamate.

Question 2

Name the joints in the hand

Answer 2

Carpometacarpal joint, metacarpalphalangeal joint, proximal interphalangeal joint, distal interphalangeal joint.

Question 3

What do the flexor tendons sit within

Answer 3

A synovial sheath and fibrous tunnel

Question 4

Describe the ligaments in the hand

Answer 4

In the median of each joint are palmer ligaments. These make up the floor of the fibro-osseus tunnels. In-between metacarpals are the deep transverse metacarpal ligaments, these stop the metacarpals spreading too wide.

Question 5

Describe the muscles of the hand

Answer 5

Interossei muscle. Dorsal and palmar work to abduct and adduct the fingers respectively. Insert inbetween the metacarpals into the extensor hood on the proximal phalanges. Lumbricals- origin flexor digitorum tendon insert laterally into extensor hood. Fine motor control of fingers.
Hypothena eminence- Opponens digiti minimi, flexor digiti minimi, abductor digiti minimi
Hyperthena eminence- same but pollicis