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My Gross Notes > Intrinsic Muscles Of Hand > Flashcards

Intrinsic Muscles Of Hand Flashcards

0
Q

Insertion of Opponens Pollicis

A

Lateral side of 1st metacarpal

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1
Q

Opponens Pollicis Origin

A

Flexor retinaculum and tubercle of scaphoid and trapezium

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2
Q

Innervation of Opponens Pollicis

A

Recurrent branch of median nerve C8 T1

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3
Q

Action of Opponens Pollicis

A

To oppose thumb

draws 1st metacarpal medially to center of palm and rotates it medially

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4
Q

Abductor pollicis Breves origin

A

Flexor retinaculum

tubercles scaphoid and trapezius

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5
Q

Abductor pollicis breves insertion

A

Lateral side of base of proximal phalanx of thumb

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6
Q

Innervation of Abductor Pollicis breves

A

Recurrent branch of median nerve C8 T1

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7
Q

Action of Abductor Pollicis Breves

A

Abducts thumb: helps oppose it

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8
Q

Flexor Pollicis Breves: superficial and deep head Origin

A

Flexor Retiniculum

tubercles of scaphoid and trapezium

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9
Q

Insertion of Flexor Pollicis Breves: Superficial head and deep head

A

Lateral side of proximal base of phalnax of thumb

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10
Q

Innervation of Flexor Pollicis Breves: superficial and Deep head

A

Recurrent branch of median nerve C8 T1

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11
Q

Action of Flexor Pollicis Breves: superficial head and Deep head

A

Flexes thumb

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12
Q

Adductor Policis: Oblique and Transverse Head

Origin

A

Oblique Head: Base of 2nd and 3rd metacarpals, Capitate, Adjacent carpals
Transverse Head: Anterior surface Of 3rd Metacarpals

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13
Q

Insertion of Adductor Pollicis: Oblique and Transverse Heads

A

Medial side of base of proximal phalanx of thumb

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14
Q

Innervation of Aducctor Pollicis: oblique and transverse heads

A

Deep branch of ulnar nerve C8 T1

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15
Q

Action of Adductor Pollicis: Oblique and Transverse Heads

A

Adducts thumb toward lateral border of palm

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16
Q

Abductor Digiti Minimi Origin

A

Pisiform

17
Q

Abductor digiti minimi Insertion

A

Medial side of base of proximal phalanx of 5th finger

18
Q

Innervation of abductor digiti minimi

A

Deep branch of ulnar nerve C8 T1

19
Q

Action of Abductor Digiti Minimi

A

abducts 5th finger

assists in flexion of its proximal phalanx

20
Q

Flexor Digiti Minimi Breves Origin

A

Hook of hamate and flexor retinaculum

21
Q

Insertion of Flexor Digiti Minimi

A

Medial side of base of proximal phalanx of 5th finger

22
Q

Innervation of Flexor Digiti minimi

A

Deep branch of ulnar C8 T1

23
Q

Action of flexor Digiti Minimi

A

Flexes proximal phalanx of 5th finger

24
Q

Opponens of digiti Minimi Origin

A

Hook of hamate

flexor retinaculum

25
Q

Insertion of opponens digiti minimi

A

Medial border of 5th metacarpal

26
Q

Innervation of Opponens Digiti minimi

A

Deep branch of ulnar nerve C8 T 1

27
Q

Action of Opponen digiti Minimi

A

Opposes 5th metacarpal anterior and
rotates it
bringing 5th finger into opposition with thumb

28
Q

Lumbrical origin
1 and 2
3 and 4

A

1 and 2 Origin lateral two tendons of flexor digitorum profundus
3 and origin medial 3 tendons of flexor digitorum profundus

29
Q

Lumbrical Insertion
1 and 2
3 and 4

A

Both insert lateral side of extensor expansions of 2nd-5th fingers

30
Q

Innervation of Lumbricals
1 and 2
3 and 4

A

1 and 2 : median nerve C8 T1

3 and 4; deep branch of ulna C8 T1

31
Q

Action of lumbrical
1 and 2
3 and 4
(karate hand)

A

Flexes metacarpophalangeal joint and

extends interphalangeal joints 2-5 fingers

32
Q

Dorsal Interossei, 1-4 Origin

A

adjacent side of 2 metacarpals

33
Q

Dorsal interossie 1-4 Insertion (bipennate muscle)

A

Base of proximal phalnages,

extensor expansion 2nd-4th finger

34
Q

Innervation of Dorsal Interossei 1-4

A

deep branch of ulna nerve C8 T1

35
Q

Action of Dorsal Interoseii 1-4

A

Abduct 2-4th finger from axial line

act with lumbricals in flexing metacapophalangeal and extending interphalangeal joint

36
Q

Origin Palmar Interossei 1-3

A

palmar surface of 2nd, 4th, 5th metacarpals

37
Q

Insertion of Palmar Interossei 1-3 (unipennate muscle)

A

base of proximal base of phalanges

extensor expansion of 2nd, 4th, 5th finger

38
Q

Palmar Interossei 1-3 innervation

A

Deep branch of ulnar nerve C8 T1

39
Q

Action of Palmar Interossei 1-3

A

Adduct 2nd,4th,5th fingers towards axial line

assist Lumbricals in flexing metacarpophalanges and extends interphalangeal joints

My Gross Notes (12 decks)

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