Intrinsic Mucles Of The Hand

Question 1

Compartment of the hands

5 compartments

Answer 1

Thenar compartment (thumb/palm)

Adductor compartment ( inferior to thenar)

Central compartment (center of palm 3-4 digits)

Hypothenar (pinki finger/palm)

Interosseous (dorsal fascia)

Question 2

Thenar compartment muscles

And nerve supply

Answer 2

Abductor pollicis brevis APB
Median nerve

Flexor pollicis brevis FPB
Superficial head: median nerve
Deep head: ulnar nerve

Opponens pollicis OP
Median nerve

Question 3

Adductor compartment

Muscle

Answer 3

Adductor pollicis AP

Ulnar nerve

Question 4

Hypothenar compartment

Muscles and nerve supply

Answer 4

Abductor digiti minimi ADM
Ulnar nerve

Flexor digiti minimi FDM
Ulnar nerve

Opponens digiti minimi ODM
Ulnar nerve

Question 5

Central compartment

Muscles and nerve

Answer 5

Lumbricals
1st and 2nd: median nerve
3rd and 4th: ulnar nerve

Flexs the metacarpophalangeal joints, extends interphalangeal joints

Question 6

Interossesous compartment

Muscles

Answer 6

Dorsal interossei
Ulnar nerve
Abducts 2nd 3rd and 4th digits

Palmaelr interossei
Ulnar nerve
Adducts 2nd, 4th and 5th towards axial line