Muscles of the hand Flashcards

1
Q

Innervation of abductor digiti minimi

A

Lateral plantar nerve.

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2
Q

Innervation of abductor pollicis brevis

A

Recurrent branch of median nerve.

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3
Q

Innervation of the adductor pollicis

A

Ulnar nerve deep branch

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4
Q

Innervation of dorsal interossei

A

Lateral plantar nerve.

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5
Q

Innervation of the flexor digiti minimi brevis

A

Ulnar nerve deep branch

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6
Q

Innervation of flexor pollicis brevis

A

Recurrent branch of the median nerve

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7
Q

Innervation of the lumbricals

A

1st lumbrical by medial plantar nerve.

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8
Q

Innervation of opponens digiti minimi

A

Ulnar nerve deep branch

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9
Q

Innervation of opponens pollicis

A

Recurrent branch of median nerve

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10
Q

Innervation of palmar interossei

A

Ulnar nerve deep branch

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11
Q

Innervation of palmaris brevis

A

Superficial branch of ulnar nerve

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12
Q

Which muscles in the hand get their blood supply from ulnar artery?

A

flexor digiti minimi brevis
opponens digiti minimi
palmaris brevis

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13
Q

Blood supply of abductor digiti minimi

A

Lateral plantar artery

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14
Q

Blood supply to abductor pollicis brevis

A

superficial palmar branch of radial artery

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15
Q

Blood supply to adductor pollicis

A

Deep palmar arterial arch

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16
Q

Blood supply to dorsal interossei

A

dorsal metatarsal artery from arcuate dorsalis pedis artery

17
Q

Blood supply to flexor pollicis brevis

A

Superficial palmar branch of radial artery.

18
Q

Blood supply to the lumbricals

A

Medial and lateral plantar artery

19
Q

Blood supply to Opponens pollicis

A

Superficial palmar branch of radial artery

20
Q

Blood supply to palmar interossei

A

Palmar metacarpal arteries

21
Q

Function of ADM

A

abducts and flexes little toe and supports lateral longitudinal arch

22
Q

Function of APB

A

Abducts thumb

23
Q

Function of Adductor P

A

Adducts the thumb

24
Q

Function of DI

A

abducts 2nd to 4th toes from axis of 2nd toe and assists in flexing proximal phalanx and extending middle and distal phalanx

25
Q

Function of FDMB

A

Flexes the carpometacarpal and metacarpophalangeal joints of the 5th digit

26
Q

Function of FPB

A

Flexes the carpometacarpal and metacarpophalangeal joints of the thumb

27
Q

Function of Lumbrical s

A

Aid in flexion of MTP joints and theoretically extend the IP joints

28
Q

Function of ODM

A

Opposes the 5th digit

29
Q

Function of OP

A

Opposes the thumb

30
Q

Function of PI

A

flexes the metacarpophalangeal, extends proximal and distal interphalangeal joints and adducts digits 1, 2, 4, & 5 (adduction of the digits of the hand is in reference to the midline of the 3rd digit)

31
Q

Function of Palmaris B

A

draws the skin of the ulnar side of the hand toward the center of the palm

32
Q

What are the thenar muscles of the hand?

A

Abductor pollicis brevis
Opponens pollicis
Adductor pollicis
Flexor pollicis brevis

33
Q

What are the hypothenar muscles of the hand?

A

Opponens digiti minimi, Flexor digiti minimi brevis, Abductor digiti minimi.