Arm, Cubital Fossa, Forearm

What is in the anterior compartment of the arm?

Biceps brachii, coracobrachialis, brachialis

What is in the posterior compartment of the arm?

triceps brachii, anconeus

what separates the anterior from the posterior compartment?

intermuscular septums (lateral and medial)

what nerve is responsible for the arm flexors

musculocutaneous nerve

what wraps around the surgical neck of the humerus

anterior circumflex humeral artery

what is the predominant artery for the forearm

ulnar artery

what does recurrent mean in "recurrent interosseous artery"

it describes the artery's reversing the direction of travel

what artery travels along side of the radial nerve when traveling down the arm

profundus brachii artery

what are the three heads of the tricep

long head, lateral head, medial head

what are the borders of the quadrangular space

Superior - teres minor/subscap

Inferior - teres major

Lateral - lateral head of tricep

Medial - long head of tricep

what are the contents of the quadrangular space

axillary nerve and posterior circumflex humeral artery

what are the contents of the upper triangular space

circumflex scapular vessels

what muscles are the borders of the upper triangular space

superior: teres minor

inferior: teres major

lateral: long head of triceps

what are the contents in the lower triangular space

radial nerve, deep artery of the arm

what muscles are the borders of the lower triangular space

superior: teres major

lateral: lateral head of triceps

medial: long head of triceps

what innervates the anconeus

deep radial nerve

what are the contents of the cubital fossa

biceps tendon, brachial artery, median nerve

where are the two heads of the flexor carpi ulnaris

one on the olecranon and one on the medial epicondyle of humerus

where does the axillary nerve emerge from

posterior cord of brachial plexus

where does the musculocutaneous nerve emerge from

lateral cord of brachial plexus

where does the radial nerve emerge from

posterior cord of brachial plexus

as the radial nerve is traveling down the arm, what intermuscular septum does it pierce

lateral intermuscular septum

Where does the median nerve emerge from?

medial and lateral cords of the brachial plexus

the median nerve supply all forearm flexor but...

flexor carpi ulnaris and medial 1/2 of flexor digitorum profundus

Where does the ulnar nerve emerge from?

medial cord of the brachial plexus

What two locations do the radial artery and ulnar artery communicate

palmar carpal arch

deep palmar arch

What is the AIN is regard to the median nerve

it is a motor branch of the median nerve ~ innervating 1/2 of the FDP, FPL, pronator quadratus

what nerve courses through the cubital tunnel?

ulnar nerve

what muscles does the ulnar nerve course between down the forearm

FCU and the FDP

if there was a mid shaft humeral fracture, what nerve is at risk of being affected

radial nerve

what is the PIN

posterior interosseous nerve

What is the PIN is regard to the radial nerve

it is a branch of the radial nerve ~ specifically deriving from the deep branch of the radial nerve

the radial nerve branches into...

superficial branch and deep branch

which branch of the radial nerve supplies sensation in the hand

superficial branch

what is the specific branch of the radial nerve that supplies most of the forearm extensor ~ it is a motor only

posterior interosseous nerve