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Muscle Anatomy > UPPER LIMB: Hand muscles > Flashcards

UPPER LIMB: Hand muscles Flashcards

(47 cards)

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1
Q

THENAR MUSCLES

Opponens pollicis - origin

A

Tubercle of trapezium bone, Flexor retinaculum

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2
Q

THENAR MUSCLES

Opponens pollicis - insertion

A

Radial border of metacarpal bone 1

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3
Q

THENAR MUSCLES

Opponens pollicis - innervation

A

Recurrent branch of median nerve (C8, T1)

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4
Q

THENAR MUSCLES

Opponens pollicis - function

A

CMC joint 1: Thumb opposition

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5
Q

THENAR MUSCLES

Abductor pollicis brevis - origin

A

Tubercles of scaphoid and trapezium bones, Flexor retinaculum

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6
Q

THENAR MUSCLES

Abductor pollicis brevis - insertion

A

Lateral aspect of base of proximal phalanx 1 (via radial sesamoid bone)

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7
Q

THENAR MUSCLES

Abductor pollicis brevis - innervation

A

Recurrent branch of median nerve (C8, T1)

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8
Q

THENAR MUSCLES

Abductor pollicis brevis - function

A

CMC joint 1: Thumb abduction

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9
Q

THENAR MUSCLES

Flexor pollicis brevis [Superficial head] - origin

A

Flexor retinaculum, Tubercle of trapezium bone

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10
Q

THENAR MUSCLES

Flexor pollicis brevis [Deep head] - origin

A

Trapezoid and capitate bones

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11
Q

THENAR MUSCLES

Flexor pollicis brevis - insertion

A

Lateral aspect of base of proximal phalanx 1 (via radial sesamoid bone)

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12
Q

THENAR MUSCLES

Flexor pollicis brevis [Superficial head] - innervation

A

Recurrent branch of median nerve

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13
Q

THENAR MUSCLES

Flexor pollicis brevis [Deep head] - innervation

A

Deep branch of ulnar nerve (C8, T1)

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14
Q

THENAR MUSCLES

Flexor pollicis brevis - function

A

CMC and MCP joint 1: Thumb flexion

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15
Q

THENAR MUSCLES

Adductor pollicis [Transverse head] - origin

A

Palmar base of metacarpal bone 3

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16
Q

THENAR MUSCLES

Adductor pollicis [Oblique head] - origin

A

Capitate bone, Palmar bases of metacarpal bones 2 & 3

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17
Q

THENAR MUSCLES

Adductor pollicis - insertion

A

Medial base of proximal phalanx 1 (via ulnar sesamoid bone)

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18
Q

THENAR MUSCLES

Adductor pollicis - innervation

A

Deep branch of ulnar nerve (C8, T1)

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19
Q

THENAR MUSCLES

Adductor pollicis - function

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A

CMC joint 1: Thumb adduction

20
Q

HYPOTHENAR MUSCLES

Abductor digiti minimi - origin

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A

Pisiform bone (Pisohamate ligament, Tendon of flexor carpi ulnaris)

21
Q

HYPOTHENAR MUSCLES

Abductor digiti minimi - insertion

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A

Ulnar side of base of proximal phalanx of digit 5, Extensor expansion of digit 5

22
Q

HYPOTHENAR MUSCLES

Abductor digiti minimi - innervation

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A

Deep branch of ulnar nerve (C8, T1)

23
Q

HYPOTHENAR MUSCLES

Abductor digiti minimi - function

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A

MCP joint 5: Finger abduction and flexion; IP joints: Finger extension

24
Q

HYPOTHENAR MUSCLES

Flexor digiti minimi - origin

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A

Hook of hamate, Flexor retinaculum

25
HYPOTHENAR MUSCLES Flexor digiti minimi - insertion
Base of proximal phalanx of digit 5
26
HYPOTHENAR MUSCLES Flexor digiti minimi - innervation
Deep branch of ulnar nerve (C8, T1)
27
HYPOTHENAR MUSCLES Flexor digiti minimi - function
MCP joint 5: Finger flexion (+ Finger lateral rotation/opposition)
28
HYPOTHENAR MUSCLES Opponens digiti minimi - origin
Hook of hamate, Flexor retinaculum
29
HYPOTHENAR MUSCLES Opponens digiti minimi - insertion
Ulnar aspect of metacarpal bone 5
30
HYPOTHENAR MUSCLES Opponens digiti minimi - innervation
Deep branch of ulnar nerve (C8, T1)
31
HYPOTHENAR MUSCLES Opponens digiti minimi - function
CMC joint 5: Finger flexion, Finger lateral rotation/opposition
32
HYPOTHENAR MUSCLES Palmaris brevis - origin
Palmar aponeurosis, Flexor retinaculum
33
HYPOTHENAR MUSCLES Palmaris brevis - insertion
Dermis of skin of hypothenar region
34
HYPOTHENAR MUSCLES Palmaris brevis - innervation
Superficial branch of ulnar nerve (C8, T1)
35
HYPOTHENAR MUSCLES Palmaris brevis - function
Tightens palmar aponeurosis, Tightens grip
36
METACARPAL MUSCLES Lumbricals (4) - origin
1 & 2: Radial aspects of tendons 1 & 2 of flexor digitorum profundus; 3 & 4: Opposing aspects of tendons 2-4 of flexor digitorum profundus
37
METACARPAL MUSCLES Lumbricals (4) - insertion
Radial aspect of extensor expansion of digits 2-5
38
METACARPAL MUSCLES Lumbricals (4) - innervation
1 & 2: Median nerve (C8, T1) 3 & 4: Deep branch of ulnar nerve (C8-T1)
39
METACARPAL MUSCLES Lumbricals (4) - function
MCP joints 2-5: Finger flexion; IP joints 2-5: Finger extension
40
METACARPAL MUSCLES Dorsal interossei (4) - origin
Adjacent sides of metacarpal bones 1-5
41
METACARPAL MUSCLES Dorsal interossei (4) - insertion
1 & 2: Radial bases of proximal phalanges/extensor expansions of digits 2 & 3 3 & 4: Ulnar bases of proximal phalanges/extensor expansions of digits 3 and 4
42
METACARPAL MUSCLES Dorsal interossei (4) - innervation
Deep branch of ulnar nerve (C8-T1)
43
METACARPAL MUSCLES Dorsal interossei (4) - function
MCP joints 2-4: Finger abduction, Finger flexion; IP joints 2-4: Finger extension
44
METACARPAL MUSCLES Palmar interossei (3) - origin
Ulnar side of metacarpal bone 2, Radial side of metacarpal bones 4 and 5
45
METACARPAL MUSCLES Palmar interossei (3) - insertion
1: Ulnar base of proximal phalanx/extensor expansion of digit 2 2 & 3: Radial base of proximal phalanges/extensor expansions of digits 4 and 5
46
METACARPAL MUSCLES Palmar interossei (3) - innervation
Deep branch of ulnar nerve (C8-T1)
47
METACARPAL MUSCLES Palmar interossei (3) - function
MCP joints 2,4 & 5: Finger adduction, Finger flexion; IP joints 2,4 & 5: Finger extension

Muscle Anatomy (19 decks)

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