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Gross Anatomy > Antebrachium, cubital fossa, elbow (Outline 16) > Flashcards

Antebrachium, cubital fossa, elbow (Outline 16) Flashcards

1
Q

Extrinsic hand muscles

Intrinsic hand muscle

A

originate on antebrachium and cross the hand ( insertion)

originate/insertion on the hand

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2
Q

Fascia of anterbrachial fascia

A

deep antebrachial fascia

interosseous membrane

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3
Q

Superficial Posterior Forearm Muscles?

A

ECRL (extensor carpi radialis longus)

ECRB (extensor carpi radialis brevis)

Extensor digiti minimi

Extensor digitorum

Extensor carpi ulnaris

Brachioradialis

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4
Q

Deep Posterior Antebrachium muscles?

A

Supinator

Extensor Pollucis longus/ brevis

Abductor pollucis longus

extensor indicis

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5
Q

What is the tennis elbow?

A

inflamation of connective tissue surrounding common extensor origin, causing painful movement of muscles

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6
Q

Superficial Anterior Antebrachium Muscles?

A

Pronator Teres (PT)

Flexor Carpi Ulnaris (FCU)

Flexor Carpi Radialis (FCR)

Palmaris Longus (PL)

Flexor Digitorum Superficialis (FDS)

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7
Q

Deep Anterior Antebrachium Muscles?

A 
Pronator Quadratus (PQ)
 Flexor Digitorum Profundus (FDP)

Flexor Pollucis Longus (FPL)

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8
Q

What is the vestigial muscle in antebrachium?

A

palmaris longus

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9
Q

BS/NS for Superficial Anterior Antebrachium? Deep Anterior Antebrachium?

A

Ulnar A / Median N

Anterior Interosseous A / Median N

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10
Q

BS/NS for Superficial Posterior Antebrachium? Deep Posterior Antebrachium?

A

Radial A/ Radial deep branch N

Post Interosseous/ Radial deep branch N

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11
Q

Exception of the nerve supply in anterior antebrachium? in posterior antebrachium?

A

Ulnar N innervate FCU and half of FDP

Radial N innervate ECRL and brachioradialis

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12
Q

OIANB of pronator teres

A

Medial Epicondyle of humerus

Coronoid process of ulna

Middle of lateral radius

Median N

Ulnar A

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13
Q

What muscles are equivalent to FCR (flexor carpi radialis)?

A

Extensor Carpi Radialis Longus

Extensor Carpi Radialis Brevis

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14
Q

What muscle is equivalent to flexor carpi ulnaris?

A

extensor carpi ulnaris

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15
Q

Wrist Abduction

Wrist Adduction

A

Combination of flexor/ extensor carpi radialis

Combination of flexor/extensor carpi ulnaris

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16
Q

Where does the brachial a divide? Into what?

A

at elbow

Radial/ Ulnar A

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17
Q

What does radial artery branch off? What does it anastomoses with?

A

radial recurrent A

posterior collateral branch

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18
Q

What does ulnar artery give off?

A

Common Interosseous A

Ant/Post Ulnar Recurrent A

19
Q

What does common interosseous A give off?

A

Anterior/ Posterior Interosseous A

20
Q

What does anterior ulnar recurrent A anastamoses with? Post recurrent A?

A

Inferior Ulnar Collateral

Superior Ulnar Collateral

21
Q

What does Post Interosseous A give off? What does it anastamoses with?

A

Post Interosseous Recurrent

Posterior Collateral Branch of Brachial Profunda

22
Q

Pathway of radial A

Pathway of ulnar A

A

travels under brachioradialis along with radial N

between two heads of FCU and FDP

23
Q

Superficial veins in arm? Where does it drain into?

A

cephalic -> axillary vein

Basilic -> brachial vein

median cubital vein: connect cephalic and basilic

24
Q

What are 3 nerves supply for antebrachium?

A

median/ ulnar/radial

25
Q

Pathwayf of median N?

A

pass through cubital fossa, travel between 2 heads of pronator teres, travels between FDP and FDS. Emerge just proximal to wrist and enter hands between FDS and flexor retinaculum

26
Q

Pathway of musculocutaneous

A

passes through cubital fossa and continues down the antebrachium as LAC

27
Q

Pathway of Ulnar N

A

goes around medial epicondyle and travels between 2 heads of FCU to supply it and half of FDP

28
Q

Pathway of Radial N Proper?

A

Radial N split into deep and superficial in cubital fossa. Deep pierce supinator and innervate post anterbrachium. Superficial travels under brachioradialis and innervate skins

29
Q

What are branches of median N?

A
30
Q

where does the median N and ulna N give off articular branch?

A
31
Q

What part of nerve is palmar branch? Where does it innervate?

A

median N

cutaneous to lateral palm

32
Q

Cutaneous N of Ulnar N? what does it supply?

A

dorsal - ulnar side 4-5

palmar - hypothena eminence (little finger area)

33
Q

where does ulna N give off muscular branch? What does it innervate

A

at forearm

FCU and half of FDP (4-5 digits)

34
Q

What does Ulnar N give off?

A

articular branch

muscular branch

cutaneous (dorsal/ palmar)

35
Q

Where does median N give off palmar branch?

A

in antebrachium, proximal to wrist

36
Q

What does cutaneous ulnar N give off? What does each branch innervate?

A

Dorsal - ulnar side of half 4 and all 5

Palmar - hypothena eminence

37
Q

what cutaneous N doesn’t give out to finger?

A

palmar cutaneous N

38
Q

What are muscles that radial innervates before split into superficial and deep?

A

brachioradialis

ECRL

39
Q

Where are superficial and deep radial N split?

A

after the elbow

40
Q

If you are injured above the elbow, what damaged and name of injury?

A

extensor muscles damaged (triceps)

its called wrist drop

41
Q

If you damage below the elbow, do you get wrist drop?

A

No

42
Q

What is the only muscles in antebrachium that flex the digital phalanges joint?

A

flexor digitorum profundus

43
Q
A

Gross Anatomy (28 decks)

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