Hand Muscles

Question 1

do you usually see extensor indicis?

Answer 1

Nope

Question 2

radial nerve goes through what in the forearm?

Answer 2

supinator

Question 3

what does through the supinator two heads?

Answer 3

radial nerve

Question 4

what two structures are not covered by the palmar aponeurosis?

Answer 4

thenar eminence

hypothenar eminence

Question 5

where does the flexor retinaculum insert?

Answer 5

4 fingers into creases at MCP

Question 6

Duputren’s contracture is what?

Answer 6

thickening and scarring of palmar aponeurosis

Question 7

All for one and one for all?

Answer 7

Abductor pollicis brevis
flexor pollicis brevis
opponens pollicis

adductor pollicis

Opponens digiti minimi
flexor digiti minimi
abductor digiti minimi

Question 8

what is the superficial palmar arch formed by?

Answer 8

ulnar artery

radial artery

Question 9

lumbricals located where?

Answer 9

between gaps of fingers

Question 10

how does the 5th lumbrical attach to the finger?

Answer 10

obliterates synovial sheath covering 5th finger

Question 11

first and second lumbrical have how many bellies?

3rd and 4th lumbrical have how many bellies?

Answer 11

1 belly

2 bellies

Question 12

lumbricals insert where?

Answer 12

radial side of each finger and into the extensor tendons so when it contracts, it also extends the IP,DIP

Question 13

adductor pollicus origin? insertion?

Answer 13

3rd metacarpal into proximal phalanx of thumb

Question 14

interossei mnemonic?

Answer 14

PAD -palmar adduct

DAB - dorsal abduct

Question 15

how many palmar interossei? insert where? how many bellies?

Answer 15

3
insert into hoods of extensor digitorum
1 belly each

Question 16

how many dorsal interossei? how many bellies?

Answer 16

4

2 bellies