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Anatomy Practical 2 > Hand > Flashcards

Hand Flashcards

1
Q

Superficial Structures of the Palm

A

Thenar Eminence
Hypothenar Eminence

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2
Q

Innervation of Hypothenar Eminence

A

Deep Branch of Ulnar nerve

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3
Q

Innervation of Thenar Eminence

A

Recurrent Branch of Median Nerve

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3
Q

The AFO for Hypothenar Eminence

A

Abductor Digiti minimi
Flexor Digiti minimi
Opponens Digiti Minimi

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3
Q

AFO of Thenar Eminence

A

Abductor Pollicis Brevis
Flexor Pollicis Brevis
Opponens Pollicis Brevis

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4
Q

Intermediate Structures of the Palm

A
  1. Long flexor tendons
  2. Lumbrical Muscles
  3. Adductor Pollicis
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5
Q

Origin of long flexor tendons

A

tendons of flexor digitorum profundus

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6
Q

insertion of long flexor tendons

A

on extensor tendons (on the distal aspect of the hand)

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7
Q

Action(s) of the long flexor tendons

A

Flexion at MCP joints
Extension at IP joints

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8
Q

innervation of long flexor tendons

A

medial 2: deep branch of Ulnar nerve
lateral 2: median nerve

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8
Q

what are the two long flexor tendons

A

flexor digitorum superficialis and profundus

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9
Q

Action(s) of Adductor Pollicis

A

adduct the thumb

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9
Q

Adductor Pollicis innervation

A

deep branch of Ulnar Nerve

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10
Q

Action(s) of lumbrical muscles

A

flexion at MCP joints
extension at IP joints

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11
Q

Innervation of lumbrical muscles

A

medial 2: deep branch of ulnar nerve
Lateral 2: median nerve

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12
Q

origin of lumbrical muscles

A

on tendons of FDP

13
Q

insertion of lumbrical muscles

A

on extensor tendon

14
Q

Deep structures of the Palm

A

Interosseous muscles
(palmar and dorsal)

15
Q

innervation of interosseous muscles

A

deep branch of ulnar nerve

16
Q

origin of interosseous muscles

A

between metacarpal bones

17
Q

insertion of interosseous muscles

A

on extensor tendons (on posterior/dorsal aspect of the hand)

18
Q

Action of palmar interossei

A
  • ADDUCTION of digits towards midline (digit 3)
  • Flexion at MCP joints
  • Extension at IP joints
19
Q

Action of dorsal interossei

A
  • ABBDUCTION of digits away from midline (digit 3)
  • Flexion at MCP joints
  • Extension at IP joints
20
Q

Muscles the superficial branch of the ulnar nerve innervates

A
  1. palmaris brevis
  2. ends cutaneous: medial 1.5 digits
21
Q

Muscles innervated by the deep branch of the ulnar nerve

A
  1. muscles of hypothenar eminence: Abd digiti minimi, flexor D.M., Opponens D.M.
  2. Medial 2 lumbricals
  3. palmar interossei
  4. dorsal interossei
  5. adductor pollicis
22
Q

Muscles innervated by the recurrent branch of median nerve

A

muscles of thenar eminence
- abductor pollicis brevi
- flexor pollicis brevi
- opponens pollicis brevi

23
Q

muscles in the hand innervated by the median nerve directly

A
  1. lateral 2 lumbricals
  2. ends cutaneous (lateral 3.5 digits)

Anatomy Practical 2 (10 decks)

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