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Anatomy HK*3401 > The Hand > Flashcards

The Hand Flashcards

1
Q

Superficial layer of hand

A

Hypothenar eminence
Thenar eminence
Palmar aponeurosis
Palmaris brevis

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2
Q

Intermediate layer of the hand

A

Long flexor tendons of FDS and FDP
Flexor retinaculum
Lumbrical muscles
Adductor pollicis

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3
Q

Deep layer of the hand

A

Interosseous muscles - palmar interossei and dorsal interossei

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4
Q

location of long flexor tendons in hand

A

Deep to flexor retinaculum and within carpal tunnel

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5
Q

Path of median nerve and ulnar nerve in relation to flexor retinaculum

A

Ulnar nerve travels over

median nerve travels under in carpal tunnel

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6
Q

“Path” of lumbrical muscle attachment

A

On radial side of long flexor muscles
Originates on tendons of FDP
Crosses MCP joint
Inserts on extensor tendon

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7
Q

Interosseous muscles action

A

Palmar interossei - adduction of digits toward digit 3

Dorsal interossei - abduction of digits away from digit 3

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8
Q

Muscles of thenar eminence

A

Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis brevis (Deep to Abductor and flexor)

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9
Q

Muscles of thenar eminence innervation

A

recurrent branch of median nerve

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10
Q

Muscles of Hypothenar eminence

A

Abductor digiti minimi
Flexor digiti minimi
Opponens digiti minimi (Deep to abductor and flexor)

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11
Q

Muscles of Hypothenar eminence innervation

A

Deep branch of ulnar nerve

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12
Q

Origin and insertion of lumbrical muscles

A

Origin: Tendons of FDP
Insertion: extensor tendons (posterior aspect of hand)

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13
Q

Action lumbrical muscles

A

Flexion at MCP
Extension at IP joints

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14
Q

Innervation lumbrical muscles

A

Lateral phalanges - deep branch of ulnar nerve

Medial phalanges - median nerve

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15
Q

Adductor pollicis action

A

Adduction of thumb

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16
Q

adductor pollicis innervation

A

Deep branch of ulnar nerve

17
Q

Origin and insertion of interosseous muscles

A

Origin: Between metacarpal bones
Insertion: extensor tendons

18
Q

Interosseous muscles action

A

Adduct and abduct digits
Flexion at MCP joints
Extension at IP joints

19
Q

Interosseous muscles innervation

A

Deep branch of ulnar nerve

20
Q

Superficial branch of ulnar nerve innervation

A

Palmaris brevis
End cutaneous: Medial 1.5 digits

21
Q

Deep branch of ulnar nerve innervation

A

Hypothenar eminence muscles
Medial 2 lumbricals
All interosseous muscles
Adductor pollicis

22
Q

Median nerve innervations

A

Median nerve - lateral 2 lumbrials

Anatomy HK*3401 (7 decks)

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