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Musculoskeletal System > Muscles of Hand > Flashcards

Muscles of Hand Flashcards

(43 cards)

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1
Q

FLEXOR RETINACULUM

A

Roof of Carpal Tunnel
DEEP TO IT:
- Flexor Digiforum Superficialis
- Flexor Digitorum Profundus
- Flexor Pollicis Longus
- Median Nerve
THROUGH IT:
- Flexor Carpi Radialis

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2
Q

LUMBRICALS (Origin)

A

Tendons Flexor Digitorum Profundus

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3
Q

LUMBRICALS (Insertion)

A

Lateral sides extensor hoods

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4
Q

LUMBRICALS (Action)

A

Flexion metacarpophalangeal joints
Extends dorsal interphalangeal joints

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5
Q

LUMBRICALS (Innervation)

A

LATERAL 2 lumbricals = Median Nerve
MEDIAL 2 lumbricals = Ulnar Nerve

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6
Q

ABDUCTOR POLLICIS BREVIS [THENAR] (Origin)

A

Tubercle of Trapezium and Scaphoid
Adjacent flexor retinaculum

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7
Q

ABDUCTOR POLLICIS BREVIS [THENAR] (Insertion)

A

Proximal phalanx and extensor hood of thumb

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8
Q

ABDUCTOR POLLICIS BREVIS [THENAR] (Action)

A

Abducts thumb at metacarpophalangeal joint

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9
Q

ABDUCTOR POLLICIS BREVIS [THENAR] (Innervation)

A

Recurrent branch of Median Nerve

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10
Q

FLEXOR POLLICIS BREVIS [THENAR] (Origin)

A

Tubercle of Trapezium and flexor retinaculum

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11
Q

FLEXOR POLLICIS BREVIS [THENAR] (Insertion)

A

Proximal phalanx of thumb

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12
Q

FLEXOR POLLICIS BREVIS [THENAR] (Action)

A

Flexes thumb at metacarpophalangeal joint

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13
Q

FLEXOR POLLICAS BREVIS [THENAR] (Innervation)

A

Recurrent branch of Median Nerve

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14
Q

OPPONENS POLLICIS [THENAR] (Origin)

A

Tubercle of Trapezium and flexor retinaculum

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15
Q

OPPONENS POLLICIS [THENAR] (Insertion)

A

Lateral margin, Palmar surface 1st metacarpal

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16
Q

OPPONENS POLLICIS [THENAR] (Action)

A

Medially Rotates thumb

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17
Q

OPPONENS POLLICIS [THENAR] (Innervation)

A

Recurrent branch of Median Nerve

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18
Q

ADDUCTOR POLLICIS (Origin)

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A

OBLIQUE HEAD
- Capitate and bases 2nd and 3rd metacarpals
TRANSVERSE HEAD
- Anterior surface shaft of 3rd metacarpal

19
Q

ADDUCTOR POLLICIS (Insertion)

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A

Base proximal phalanx thumb
Extensor hood of thumb

20
Q

ADDUCTOR POLLICIS (Action)

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A

Adducts thumb

21
Q

ADDUCTOR POLLICIS (Innervation)

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A

Deep branch of Ulnar Nerve

22
Q

ABDUCTOR DIGITI MINIMI [HYPOTHENAR] (Origin)

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A

Pisiform and pisohamate ligament
Tendon Flexor Carpi Ulnaris

23
Q

ABDUCTOR DIGITI MINIMI [HYPOTHENAR] (Insertion)

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A

Proximal phalanx little finger

24
Q

ABDUCTOR DIGITI MINIM [HYPOTHENAR] (Action)

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A

Abducts little finger at metacarpophalangeal joint

25
ABDUCTOR DIGITI MINIMI [HYPOTHENAR] (Innervation)
Deep branch of Ulnar Nerve
26
FLEXOR DIGITI MINIMI [HYPOTHENAR] (Origin)
Hook of Hamate and flexor retinaculum
27
FLEXOR DIGITI MINIMI [HYPOTHENAR] (Insertion)
Proximal phalanx little finger
28
FLEXOR DIGITI MINIMI [HYPOTHENAR] (Action)
Flexes little finger at metacarpophalangeal joint
29
FLEXOR DIGITI MINIMI [HYPOTHENAR] (Innervation)
Deep branch of Ulnar Nerve
30
OPPONENS DIGITS MINIMI [HYPOTHENAR] (Origin)
Hook of Hamate and flexor retinaculum
31
OPPONENS DIGITI MINIMI [HYPOTHENAR] (Insertion)
Medial aspect 5th metacarpal
32
OPPONENS DIGITI MINIMI [HYPOTHENAR] (Action)
Laterally Rotates 5th metacarpal
33
OPPONENS DIGITI MINIMI [HYPOTHENAR] (Innervation)
Deep branch of UInar Nerve
34
PALMAR INTEROSSEUS (Origin)
Sides of metacarpals
35
PALMAR INTEROSSEUS (Insertion)
Extensor hoods index, ring and little finger Proximal phalanx index, ring and little finger
36
PALMAR INTEROSSEUS (Action)
Adduction of index, ring and little finger Extension at dorsal interphalangeal joint
37
PALMAR INTEROSSEUS (Innervation)
Deep branch of Ulnar Nerve
38
EXTENSOR RETINACULUM
COMPARTMENT 1: - Abductor Pollicis Longus - Extensor Pollicis Brevis COMPARTMENT 2: - Extensor Carpi Radialis Longus - Extensor Carpi Radialis Brevis COMPARTMENT 3: - Extensor Pollicis Longus COMPARTMENT 4: - Extensor Digitorum - Extensor Indicis COMPARTMENT 5: - Extensor Digiti Minimi COMPARTMENT 6: - Extensor Carpi Ulnaris
39
DORSAL INTEROSSEUS (Origin)
Adjacent metacarpal
40
DORSAL INTEROSSEOUS (Insertion)
Extensor hoods index, ring and middle finger Proximal phalanx index, ring and middle finger
41
DORSAL INTEROSSEUS (Action)
Abduction of index, ring and middle finger Extension at dorsal interphalangeal joint
42
DORSAL INTEROSSEUS (Innervation)
Deep branch of Ulnar Nerve
43
EXTENSOR HOOD
Tendons of Extensor Digitorum and Extensor Pollicis Longus Interossei, Lumbricals and Abductor Digiti Minimi on sides Adductor Pollicis and Abductor Pollicis Brevis insert (thumb)

Musculoskeletal System (17 decks)

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