arm Flashcards

1
Q

Veins of arm

A

Cephalic (ant/lat bicep)

Basilic (med bicep)

Median cubital vein (between Cephalic and basilic in cubital fossa) (superficial to bicipital aponeurosis)

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2
Q

Fascia of arm

A

Brachial fascia (cont w/ pectoral, axillary, deltoid shoulder fascia

med/las inter muscular speta (arm ant/post compartments)
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3
Q

Flexor musc (ant)

A

Biceps brachii

Brachialis

Coracobrachialis

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4
Q

Flexor musc (ant) generalizations

A

Actions: arm flex, forearm flex

Nerve supply: musculocutaneous nerve off lat cord (C6)

Blood supply: branches of brachial artery

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5
Q

Ext musc (post) generalizations

A

Actions: arm ext, forearm ext

Nerve: radial nerve off post cord (C7,8)

Blood supply: profunda brachii artery

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6
Q

Ext musc (post)

A

Triceps brachii

Anconeus

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7
Q

Brachial artery pathway

A

Aortic arch

Brachioephalic trunk (R arm ONLY)

Subclavian

Axillary

Brachial artery:
profunda brachii
sup/Inf ulnar collateral
crosses elbow joint -> radial/ulnar

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8
Q

Where does profunda brachii come off of?

A

Brachial artery

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9
Q

The brachial artery branches out to what 2 arteries at the elbow joint?

A

Radial/ulnar arteries

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10
Q

Profunda brachii artery branches off to what in the post arm?

A

Radial/middle collateral arteries

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11
Q

Median nerve runs with what artery?

A

Brachial artery

Nerve doesn’t innervate anything arm/axilla

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12
Q

Ulnar nerve runs medially along which artery?

A

Brachial artery

Nerve doesn’t innervate anything arm/axilla

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13
Q

Musculocutaneous nerve innervates the muscles of _____ arm

A
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14
Q

Musculocutaneous nerve then becomes what nerve that innervates the skin of lat forearm?

A

Lat cutaneous nerve of forearm

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15
Q

Radial nerve gives off what two nerves?

A

Post cutaneous nerve of arm and forearm

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16
Q

Radial nerve splits into

A

Superficial branch of radial nerve (innervates skin of dorsal hand and digits)

Deep branch of radial nerve (innervates supination and ext carpii radial is brevis)
-> posterior interosseous nerve

17
Q

Cubital fossa is on the ___ surface of elbow joint

A

Ant

18
Q

Cubital fossa boundaries

A

Sup: imaginary line connecting humeral epicondyles

Med: pronation teres

Lat: brachioradialis

Floor: brachialis, supinator

Roof: brachial fascia, bicipital aponeurosis

19
Q

Cubital fossa contents

A

Biceps tendon

Brachial artery

Median nerve

20
Q

What are superficial to cubital fossa?

A

Cephalic vein (lat)

Basilic vein (med)

Connected by median cubital vein

21
Q

Clinical importance of cubital fossa?

A

Blood pressure

Blood draw

22
Q

What is this

A

Nerves and arteries arm