arm Flashcards
Veins of arm
Cephalic (ant/lat bicep)
Basilic (med bicep)
Median cubital vein (between Cephalic and basilic in cubital fossa) (superficial to bicipital aponeurosis)
Fascia of arm
Brachial fascia (cont w/ pectoral, axillary, deltoid shoulder fascia
med/las inter muscular speta (arm ant/post compartments)
Flexor musc (ant)
Biceps brachii
Brachialis
Coracobrachialis
Flexor musc (ant) generalizations
Actions: arm flex, forearm flex
Nerve supply: musculocutaneous nerve off lat cord (C6)
Blood supply: branches of brachial artery
Ext musc (post) generalizations
Actions: arm ext, forearm ext
Nerve: radial nerve off post cord (C7,8)
Blood supply: profunda brachii artery
Ext musc (post)
Triceps brachii
Anconeus
Brachial artery pathway
Aortic arch
Brachioephalic trunk (R arm ONLY)
Subclavian
Axillary
Brachial artery:
profunda brachii
sup/Inf ulnar collateral
crosses elbow joint -> radial/ulnar
Where does profunda brachii come off of?
Brachial artery
The brachial artery branches out to what 2 arteries at the elbow joint?
Radial/ulnar arteries
Profunda brachii artery branches off to what in the post arm?
Radial/middle collateral arteries
Median nerve runs with what artery?
Brachial artery
Nerve doesn’t innervate anything arm/axilla
Ulnar nerve runs medially along which artery?
Brachial artery
Nerve doesn’t innervate anything arm/axilla
Musculocutaneous nerve innervates the muscles of _____ arm
Musculocutaneous nerve then becomes what nerve that innervates the skin of lat forearm?
Lat cutaneous nerve of forearm
Radial nerve gives off what two nerves?
Post cutaneous nerve of arm and forearm