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Musculo-Skeletal > Superficial Muscles of Posterior Compartment of Forearm > Flashcards

Superficial Muscles of Posterior Compartment of Forearm Flashcards

0
Q

Main action of brachioradialis?

A

Flexes forearm

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1
Q

Name the superficial muscles of the posterior compartment of the forearm?

A
  1. Branchioradialis
  2. Extensor carpi radialis longus
  3. Extensor carpi radialis brevis
  4. Extensor digitorum
  5. Extensor digiti minimi
  6. Extensor carpi ulnaris
  7. Anconeus
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2
Q

Main action of extensor carpi radialis longus?

A
  • Extends hand at wrist

- Abducts hand at wrist

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3
Q

Main action of extensor carpi radialis brevis?

A
  • Extends medial 4 digits at metacarpophalangeal joints

- Extends hand at wrist joint

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4
Q

Main action of extensor digitorum?

A
  • Extends medial 4 digits at metacarpophalangeal joints

- Extends hand at wrist joint

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5
Q

Main action of extensor digiti minimi?

A
  • Extends 5th digit at metacarpophalangeal joints

- Extends 5th digit at interphalangeal joints

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6
Q

Main action of extensor carpi ulnaris?

A
  • Extends hand at wrist

- Adducts hand at wrist

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7
Q

Main action of anconeus?

A
  • Assists triceps in extending forearm
  • Stabilizes elbow joint
  • Abducts ulna during pronation
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8
Q

Innervation of superficial muscles of post. compartment of forearm?

A

Radial nerve

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9
Q

Proximal attachment of brachioradialis?

A

Proximal 2/3 of lateral supracondylar ridge of humerus

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10
Q

Distal attachment of brachioradialis?

A

Lat. surface of distal end of humerus

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11
Q

Proximal attachment of extensor carpi radialis longus?

A

Lat. supracondylar ridge of humerus

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12
Q

Distal attachment of extensor carpi radialis longus?

A

Base of 2nd metacarpal bone

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13
Q

Proximal attachment of extensor carpi radialis brevis?

A

Lat. epicondyle of humerus

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14
Q

Distal attachment of extensor carpi radialis brevis?

A

Base of 3rd metacarpal bone

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15
Q

Proximal attachment of extensor digitorum?

A

Lat. epicondyle of humerus

16
Q

Distal attachment of extensor digitorum?

A

Extensor expansion of med. four digits

17
Q

Proximal attachment of extensor digiti minimi?

A

Lat. epicondyle of humerus

18
Q

Distal attachment of extensor digiti minimi?

A

Extensor expansion of fifth digit

19
Q

Proximal attachment of extensor carpi ulnaris?

A
  • Lat. epicondyle of humerus

- Post. border of ulna

20
Q

Distal attachment of extensor carpi ulnaris?

A

Base of 5th metacarpal

21
Q

Proximal attachment of anconeus?

A

Lat. epicondyle of humerus

22
Q

Distal attachment of anconeus?

A
  • Lat. surface of olecranon

- Sup. part of post. part of ulna

Musculo-Skeletal (22 decks)

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