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Myology 1 > Hand > Flashcards

Hand Flashcards

0
Q

Abductor pollicis brevis

A 
O:  1) flexor retinaculum; 2) scaphoid; 3) trapezium
I:  proximal phalanx of thumb
A: abduction of thumb at CMC
N: median
Blood: radial
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1
Q

What are the muscles in the thenar group?

A

Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis

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2
Q

Flexor pollicis brevis

A 
O: 1) flexor retinaculum; 2) trapezium
I: proximal phalanx of thumb
A:  flexion of thumbs at CMC and MCP
N: median
Blood: radial
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3
Q

Opponens pollicis

A 
O:  1)flexor retinaculum; 2) trapezium 
I:  1st metacarpal (ant-lat surface; wraps around)
A: opposition of thumb at CMC
N: median (and ulnar)
Blood: radial
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4
Q

What muscles make up the superficial

Fascia group?

A

Palmaris brevis

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5
Q

Palmaris brevis

A

O: 1) flexor retinaculum. 2) palmar aponeuroses
I: dermis of ulnar side of the hand
A: wrinkles skin of hand (contributes to gripping
N: ulnar
Blood: ulnar and radial
SAMI’S WEINER GRIPPING MUSCLE

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6
Q

What muscles comprise the hypothenar group?

A
  1. Abductor digiti minimi manus
  2. Flexor digiti minimi manus
  3. Opponens digiti minimi manus
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7
Q

Abductor digiti minimi manus

A 
O:  1) pisiform. 2) tendon of the FCU
I: proximal phalanx of the 5th digit
A: abduction of 5th digit 
N: ulnar
Blood: ulnar
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8
Q

What nerve supplies the hypothenar group?

A

Ulnar

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9
Q

What artery supplies thes hypothenar group?

A

Ulnar

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10
Q

Flexor digiti minimi manus

A 
O: 1) flexor retinaculum. 2) hook of hamulus
I:  proximal phalanx of 5th digit
A: flexion of 5th digit
N: ulnar
Blood: ulnar
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11
Q

Opponens digiti minimi

A 
O: 1) flexor retinaculum. 2) hook of hamate 
I: 5th metacarpal (medial surface)
A. Opposition of 5th digit
Nerve: ulnar
Blood: ulnar
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12
Q

What muscles comprise the central compartment of the hand?

A
  1. Adductor policies
  2. Lumbricals manus
  3. Palmis interossei manus
  4. Dorsal interossei manus
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13
Q

Adductor pollicis

A

O: Two Heads:
Oblique: bases of 2nd and 3rd metacarpals; Capitate
Transverse: distal portion of 3rd metacarpal
I: medial side of proximal phalanx of thumb (oblique head through medial Sesamoid bone)
A: adduction of thumb at CMC
N: ulnar
Blood: radial

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14
Q

Lumbricals manus

A

Action: flexion of digits 2-5 at MCP
Extension of digits 2-5 at PIPs and DIPs.
Nerve: some median, some ulnar
Blood: ulnar and radial
Bellies of 1 & 2: unipennate. 3 &4: bipennate

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15
Q

Palmar interossei manus

A 
O: base of MC 2,4 & 5
I:  base of proximal phalanxes 2,4, & 5
A: adduction of fingers 2,4,5. 
Nerve: ulnar
Blood: radial and ulnar
16
Q

Dorsal interossei manus

A 
O: bodies of MC 1-5
I: base of proximal phalanxes 2,3 & 4
A: abduction of 2,3 & 4
N: ulnar
Blood: ulnar and radial
17
Q

What muscles go through the sesamoid bones of the MC of the thumb?

A

Lateral: distal tendon of Flexor pollicis brevis

Median: oblique head of adductor policis

18
Q

What muscles attach to the Dorsal Digital Expansion?

A

Lumbricals manus
Palmar interossei manus
Dorsal interossei manus
Extensor digitorum

Myology 1 (9 decks)

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