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Clinical Anatomy - Fast Facts Exam 6 > Intricate Muscles of the Hand > Flashcards

Intricate Muscles of the Hand Flashcards

1
Q

What are the Thenar Compartment Muscles?

A
  1. Opponens Pollicis
  2. Abductor Pollicis Brevis
  3. Flexor Pollicis Brevis
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2
Q

What are the Adductor Compartment Muscles?

A
  1. Adductor Pollicis
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3
Q

What are the Hypothenar Compartment Muscles?

A
  1. Abductor Digiti Minimi
  2. Flexor Digiti Minimi Brevis
  3. Opponens Digiti Minimi
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4
Q

What are the Central Compartment Muscles?

A

Lumbricals 1-4

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5
Q

What are the Interosseous Compartment Muscles?

A
  1. Dorsal Interossei 1-4

2. Palmar Interossei 1-3

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6
Q

Opponens Pollicis - O

A

Flexor retinaculum and tubercles of scaphoid and trapezium

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7
Q

Opponens Pollicis - I

A

Lateral side of 1st metacarpal

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8
Q

Opponens Pollicis - N

A

Median Nerve

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9
Q

Opponens Pollicis - A

A

Oppose thumb, draws 1st metacarpal medially to center of palm, rotates it medially.

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10
Q

Abductor Pollicis Brevis - O

A

Flexor retinaculum and tubercles of scaphoid and trapezium

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11
Q

Abductor Pollicis Brevis - I

A

Lateral side of base of proximal phalanx of thumb.

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12
Q

Abductor Pollicis Brevis - N

A

Median Nerve

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13
Q

Abductor Pollicis Brevis - A

A

ABducts Thumb, helps oppose it.

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14
Q

Flexor Pollicis Brevis - O

A

Flexor retinaculum and tubercles of scaphoid and trapezium

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15
Q

Flexor Pollicis Brevis - I

A

Lateral side of base of proximal phalanx of thumb.

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16
Q

Flexor Pollicis Brevis - N Superficial Head

A

Median Nerve

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17
Q

Flexor Pollicis Brevis - N Deep Head

A

Ulnar Nerve

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18
Q

Flexor Pollicis Brevis - A

A

Flexes Thumb

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19
Q

Adductor Pollicis - O Oblique Head

A

Base of 2nd and 3rd metacarpals, capitate, adjacent carpals.

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20
Q

Adductor Pollicis - O Transverse Head

A

Anterior surface of shaft of 3rd metacarpal.

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21
Q

Adductor Pollicis - I

A

Medial side of base of proximal phalanx of thumb

22
Q

Adductor Pollicis - N

23
Q

Adductor Pollicis - A

A

Adducts thumb toward lateral border of palm

24
Q

Abductor Digiti Minimi - O

25
Q

Abductor Digiti Minimi - I

A

Medial side of base of proximal phalanx of 5th finger

26
Q

Abductor Digiti Minimi - N

27
Q

Abductor Digiti Minimi - A

A

Abducts 5th finger; assists in flexion of its promixal phalanx.

28
Q

Flexor Digiti Minimi Brevis - O

A

Hook of hamate and flexor retinaculum.

29
Q

Flexor Digiti Minimi Brevis - I

A

Medial side of base of proximal phalanx of 5th finger

30
Q

Flexor Digiti Minimi Brevis - N

31
Q

Flexor Digiti Minimi Brevis - A

A

Flexes proximal phalanx of 5th finger.

32
Q

Opponens Digiti Minimi - O

A

Hook of hamate and flexor retinaculum.

33
Q

Opponens Digiti Minimi - I

A

Medial border of 5th metacapal

34
Q

Opponens Digiti Minimi - N

35
Q

Opponens Digiti Minimi - A

A

Draws 5th metacarpal anterior and rotates it, bringing 5th finger into opposition with thumb.

36
Q

Lumbricals (1-2) - O

A

Lateral 2 tendons of flexor digitorum profundus (as unipennate muscles)

37
Q

Lumbricals (1-2) - I

A

Lateral sides of extensor expansions of 2nd-3rd fingers

38
Q

Lumbricals (1-2) - N

39
Q

Lumbricals (1-2) - A

A

Flex metacarpophalangeal joints; extends interphalangeal joint of 2nd-3rd fingers.

40
Q

Lumbricals (3-4) - O

A

Medial 3 tendons of flexor digitorum profundus (as bipennate muscles)

41
Q

Lumbricals (3-4) - I

A

Lateral sides of extensor expansions of 4th-5th fingers

42
Q

Lumbricals (3-4) - N

43
Q

Lumbricals (3-4) - A

A

Flex metacarpophalangeal joints; extends interphalangeal joint of 4th-5th fingers.

44
Q

Dorsal Interossei (1-4) - O

A

Adjacent sides of two metacarpals (as bipennate muscles)

45
Q

Dorsal Interossei (1-4) - I

A

Bases of proximal phalanges; extensor expansions of 2nd-4th fingers.

46
Q

Dorsal Interossei (1-4) - N

47
Q

Dorsal Interossei (1-4) - A

A

Abduct 2nd-4th fingers from axial line; act with lumbricals in flexing metacarophalangeal joints and extending interphalangeal joints. (Palming a ball while looking at DORSAL side).

48
Q

Palmar Interossei (1-3) - O

A

Palmar surfaces of 2nd, 4th, and 5th metacarpals (as unipennate muscles).

49
Q

Palmar Interossei (1-3) - I

A

Bases of proximal phalanges; extensor expansions of 2nd, 4th, and 5th fingers.

50
Q

Palmar Interossei (1-3) - N

51
Q

Palmar Interossei (1-3) - A

A

Adduct 2nd, 4th, and 5th fingers toward axial line; assist lumbricals. (Holding a Cup of water in hand).

Clinical Anatomy - Fast Facts Exam 6 (9 decks)

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