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Anatomy > Forearm > Flashcards

Forearm Flashcards

1
Q

What nerve innervates muscles of the muslces of the anterior (flexor) compartment of the upper arm?

A

Musculocutaneous Nerve

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2
Q

What muscle innervates muscles of the posterior (extensor) compartment of the upper arm?

A

Radial Nerve

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3
Q

What artery supplies the anterior compartment of upper arm?

A

Brachial artery

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4
Q

What artery supplies the posterior compartment of the upper arm?

A

Deep brachial artery

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5
Q

Where to brachial and deep brachial arteries branch off from?

A

Axillary artery

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6
Q

Which artery passes through and supplies with blood the supinator?

A

Posterior interosseous artery

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7
Q
A
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8
Q

Where do all flexors of the forearm originate?

A

lateral epicondyle of humerus (common flexor origin/tendon)

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9
Q

Where do all extensors of the forearm orginate?

A

medial epicondyle of humerus (common extensor origin/tendon)

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10
Q

Flexors of the forearm

A
  1. Pronator teres
  2. Flexor carpi radialis
  3. Palmaris Longus
  4. Flexor carpi ulnaris
  5. Flexor digitorum superficialis
  6. protanor quadratus
  7. Flexor digitorum profundus
  8. ***Flexor pollicis longus
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11
Q

Extensors of the Wrist

A
  1. Extensor Carpi Radialis Longus
  2. Extensor carpi ulnaris
  3. Extensor carpi radialis brevis
  • All arise from lateral condyle of humerus (common extensor origin/tendon)
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12
Q

Extensors of the digits and where they insert

A
  1. Extensor digitorum
  2. Extensor Indicis
  3. Extensor minimi
  • All insert into extensor expansion of these digits
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13
Q

Extensor expansion

A
  • insertion of extensors of digits
  • tendons split into lateral and central parts
  • merge with intrinsic hand muscles to make expansion hood
  • enable intricate finger movements
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14
Q

Extensors/Abductors of Thumb

A
  1. Extensor Policis longus
  2. Extensor Policis brevis
  3. Abductor Policis longus
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15
Q

What secures extensor muscles at the wrist?

A

extensor retinaculum

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16
Q

What defines the boundaries of the anatomical snuff box?

A

Thumb adductor/extensors (abductor policis longus, extensor policis longus, extensor policis brevis)

17
Q

What innervates all of the digit/thumb extensors?

A

Posterior interosseous nerve (from Radial Nerve)

18
Q

Trace path of Radial nerve from posterior cord

A
19
Q

Ulnar nerve

A
  • passes through medial epicondyle
  • innervates lateral 1/2 of FDS
  • innervates flexor carpi ulnaris
  • innervates intrinsic hand muslces
20
Q

Median Nerve

A
21
Q

Trace pathways of brachial artery

A
22
Q

What bones do the distal radius articulate with?

A
  1. Lunate
  2. Scaphoid
  3. Triquem
23
Q

What three muslces adduct and medially rotate the humerus?

A
  1. Pectoralis Major
  2. Latissimus Dorii
  3. Teres Major
24
Q

What three muscles originate at the corocoid process?

A
  1. Short head of biceps brachii
  2. coracobrachiallis
  3. pectoralis minor
25
Q

What artery does the median nerve travel with?

A

Brachial artery

26
Q

What supplies blood to the upper arm (anterior)

A

Brachial artery

27
Q

What artery travels with the ulnar nerve around the medial epicondyle of the humerus?

A

Superior ulnar collateral artery

28
Q

where do all heads of triceps insert?

A

olecranon process

29
Q

Superficial Lymphatic Vessels

A
  • Drain lymph from subcutaneous tissues
  • follow Cephalic and basilic veins
30
Q

Deep lymphatic vessels

A
  • Drain from joints, muslces, bones
  • accompany deep veins
31
Q

Passage of the lymphatic system

A

Superficial/deep Vessels —> axillary nodes –> Right lymphatic/thoracic duct —> subclavian vein

32
Q

what deepens the glenohumeral joint?

A

Glenoid labrum

33
Q

Transverse humeral ligament

A

covers the bicipital groove and encloses the long head tendon of the biceps brachii

34
Q

Rotator Cuff tendons

A
  1. Coracoacromial ligament
  2. Superior glenohumeral ligament
  3. Middle glenohumeral ligament
  4. Inferior glenohumeral ligament
35
Q

Most common direction of Glenohumeral joint dislocations

A

Antero-inferiorly

36
Q

Which is one of the most commonly fractured bones?

A
  1. Clavicle
  2. Surgical neck of the humerus
37
Q

ones

A

Anatomy (18 decks)

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