Ch 12- Wrist Flashcards

1
Q

Flexor Carpi Ulnaris

A

O- medial epicondyle of humerus (common flexor tendon)
I- pisiform and base of 5th metacarpal
A- wrist flexion, ulnar deviation
N- Ulnar nerve (C8, T1)

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2
Q

Flexor Carpis Radialis

A

O- medial epicondyle of humerus (common flexor tendon)
I- base of 2nd and 3rd metacarpals
A- wrist flexion, radial deviation
N- median nerve (C6, 7)

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3
Q

Palmaris Longus

A

O- medial epicondyle of humerus (common flexor tendon)
I- Palmar aponeurosis
A- assists in wrist flexion
N- median nerve (C6, 7)

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4
Q

Extensor carpi radialis longus

A

O- lateral supracondylar ridge of humerus
I- base of 2nd metacarpal
A- wrist extension, radial deviation
N- Radial nerve (C6, 7)

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5
Q

Extensor carpi radialis brevis

A

O- lateral epicondyle of humerus
I- base of 3rd metacarpal
A- wrist extension
N- radial nerve (C6, 7)

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6
Q

Extensor carpi ulnaris

A

O- lateral epicondyle of humerus
I- base of 5th metacarpal
A- wrist extension, ulnar deviation
N- radial nerve (C6, 7, 8)

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7
Q

Wrist flexors attach to what part of the humerus?

A

attach to the medial epicondyle of humerus and are located on the anterior forearm

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8
Q

Wrist extensors attach to what part of the humerus?

A

attach to the lateral epicondyle of humerus and are located on the posterior forearm

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9
Q

Order of carpal bones on left hand from left to right? From anterior view

A

Trapezium, Trapezoid, Capitate, Hamate, Scaphoid, Lunate, Triquetrum, Pisiform

(from bottom up and left to right: Some Lovers Try Positions That They Can’t Handle)

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10
Q

Most commonly fractured carpal bone?

A

Scaphoid (ex: falling on outstretched hand), leads to avascular necrosis of the bone

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11
Q

Second most fractured carpal bone?

A

Triquetrum

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12
Q

First CMC arthritis

A

really common condition, early 40’s initial stages

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13
Q

Least fractured carpal bone?

A

trapezoid

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14
Q

Common flexor tendon (5)

A

(come off the medial epicondyle)

  • flexor carpi ulnaris
  • flexor carpi radialis
  • palmaris longus
  • pronator teres
  • flexor digitorum superficialis
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15
Q

Pronator Teres

A

O- medial epicondyle of humerus (common flexor tendon)
I-
A-
N-

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16
Q

Flexor digitorum superficialis

A

O- medial epicondyle of humerus (common flexor tendon)
I-
A-
N-

17
Q

Common Extensor tendon (4)

A

(come off the lateral epicondyle)

  • Extensor carpi radialis brevis
  • Extensor digitorum
  • extensor digiti minimi
  • extensor carpi ulnaris
18
Q

1 st dorsal compartment tendons (2)

A

abductor pollicis longus, extensor pollicis brevis

19
Q

2nd compartment

A

extensor carpi radialis longus, extensor carpi radialis brevis

20
Q

3rd dorsal compartment

A

extensor pollicis longus, extensor digitorum, ex

21
Q

4th dorsal compartment

A

2 tendon groups, ext digit minimi

22
Q

5th dorsal compartment

A

extensor carpi ulnaris

23
Q

which of the wrist flexors do not go through the carpal tunnel?

A

flexor carpi ulnaris and flexor carpi radials, palmaris longus

24
Q

Which of the wrist flexors do go through the carpal tunnel?

A

FPL, FDS, FDP

25
Q

fallen’s test, tinnel’s test

A

carpal tunnel test