The Hand and Wrist Flashcards

1
Q

Describe the Action, Origin, Insertion, and Innervation of the Extensor pollicis brevis ?

A

Action: Extends thumb
Origin: Posterior distal surface of radius
Insertion: proximal phalanx
Innervation: Posterior antebrachial interosseous nerve

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2
Q

Describe the Action, Origin, Insertion, and Innervation of the adductor pollicis longus ?

A

Action: Adducts thumb
Origin: Capitate bone, 2nd/3rd metacarpal
Insertion: proximal phalanx
Innervation: Deep branch of ulnar nerve

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3
Q

Describe the Action, Origin, Insertion, and Innervation of the Extensor pollicis longus?

A

Action: extends thumb
Origin: posterior middle surface of the ulna
Insertion: distal phalanx of the thumb
Innervation: Posterior antebrachial interosseous nerve

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4
Q

Describe the Action, Origin, Insertion, and Innervation of the Extensor indicis ?

A

Action: Extends index finger
Origin: Posterior surface of ulna
Insertion: Extensor expansion of index finger
Innervation: Posterior antebrachial interosseous nerve

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5
Q

Describe the Action, Origin, Insertion, and Innervation of the extensor carpi ulnaris ?

A

Action: Extends and adducts hand/wrist
Origin: Lateral epicondyle of humerus
Insertion: medial aspect of the fifth metacarpal
Innervation: Posterior antebrachial interosseous nerve

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6
Q

Describe the Action, Origin, Insertion, and Innervation of the Extensor digiti minimi ?

A

Action: Extends little finger
Origin: Lateral epicondyle of humerus
Insertion: Extensor expansion of little finger
Innervation: Posterior antebrachial interosseous nerve

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7
Q

Describe the Action, Origin, Insertion, and Innervation of the Extensor digitorum ?

A

Action: Extends fingers
Origin: Lateral epicondyle of humerus
Insertion: distal phalanges of fingers
Innervation: Posterior antebrachial interosseous nerve

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8
Q

Describe the Action, Origin, Insertion, and Innervation of the Extensor carpi radialis brevis?

A

Action: Extends hand/wrist
Origin: lateral supracondylar ridge of the humerus
Insertion: Base of 3rd metacarpal
Innervation: Deep branch of radial nerve

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9
Q

Describe the Action, Origin, Insertion, and Innervation of the Extensor carpi radialis longus ?

A

Action: Extends hand/wrist
Origin: lateral supracondylar ridge of the humerus
Insertion: Base of second metacarpal
Innervation: Radial nerve

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10
Q

Describe the Action, Origin, Insertion, and Innervation of the Flexor Carpi Radialis ?

A

Action: Flexes wrist/hand
Origin: Medial epicondyle of humerus
Insertion: palmar aspects of 2nd/3rd metacarpal
Innervation: Median nerve

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11
Q

Describe the Action, Origin, Insertion, and Innervation of the Flexor Carpi Ulnaris ?

A

Action: Flexes and adducts hand/wrist
Origin: Medial epicondyle of humerus
Insertion: Pisiform, Metacarpal 5
Innervation: Ulnar nerve

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12
Q

Describe the Action, Origin, Insertion, and Innervation of the Palmaris longus?

A

Action: Flexes hand/wrist, stabilises palmar aponeurosis
Origin: Medial epicondyle of humerus
Insertion: Palmar fascia
Innervation: Median nerve

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13
Q

Describe the Action, Origin, Insertion, and Innervation of the flexor digitorum superficialis ?

A

Action: Flexes fingers
Origin: Medial epicondyle of the humerus
Insertion: middle phalanges
Innervation: Median nerve

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14
Q

Describe the Action, Origin, Insertion, and Innervation of the Flexor digitorum profundus ?

A

Action: Flexes finger
Origin: Medial aspect of coronoid process of Ulna
Insertion: bases of distal phalanges
Innervation: Ulnar nerve, median nerve

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15
Q

Describe the Action, Origin, Insertion, and Innervation of the Flexor Pollicis longus?

A

Action: Thumb flexor
Origin: Anterior surface of radius
Insertion: base of distal phalanx
Innervation: anterior antebrachial interosseous nerve

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16
Q

What muscle is in the intermediate layer (flexor) of the hand/wrist ?

A

Flexor digitorum superficialis

17
Q

What muscle is in the deep layer (flexors) of the hand/wrist ? (2)

A

Flexor pollicis longus
Flexor digitorum profundus

18
Q

What muscles are in the superficial layer (flexors) of the hand/wrist? (3)

A

Flexor carpi radialis / ulnaris
Palmaris longus

19
Q

What are the superficial layer muscles (extensor) in the hand/wrist? (5)

A

Extensor Carpi Radialis Longus / Brevis
Extensor digitorum
Extensor Digiti Minimi
Extensor Carpi Ulnaris

20
Q

What are the deep layer muscles (extensor/adductor) in the hand/wrist? (4)

A

Extensor indicis
Extensor Pollicis brevis/longus
Adductor Pollicis longus

21
Q

What are the 2 eminences of the hand?

A

Thenar
Hypothenar

22
Q

What are the movements at the eminences?

A

Flexion
Abduction
Opposition

23
Q

Muscles in the Thenar eminence and their function?

A

Opponens pollicis - thumb opposition
Flexor pollicis brevis - thumb flexion
Abductor pollicis brevis - thumb abductor

24
Q

Muscles in the hypothenar eminence and their function?

A

Opponens digiti mini - opposition
Flexor digiti minimi - flexion of pinky
Abductor digiti minimi - abductor of pinky

25
Q

What muscles are involved in abd/adduction and flexion of the fingers?

A

Abduction - Dorsal interosseous
Adduction - Palmar interosseous
Flexion - Lumbricals

26
Q

Bones of the wrist/hand?(5)

A

Carpals
Metacarpals
Proximal/Distal/Intermediate phalanges

27
Q

Carpal bones? (8)

A

Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate

28
Q

Movements at the wrist ?(6)

A

Flexion
Extension
Radial/Ulnar deviation
Pronation
Supination

29
Q

Thumb movements ?

A

Flexion
Extension
Adduction
Abduction
Opposition

30
Q

Finger movements ?(7)

A

Flexion
(hyper)Extension
Abduction
Adduction
Circumduction
Opposition

31
Q

Joints of the wrist/hand?(five)

A

Radiocarpal
Carpometacarpal
Metacarpophalangeal
Proximal / Distal interphalangeal