lecture 9: axilla and brachial plexus and pluxes muscles , anatomial spaces and brachium Flashcards
what are the contents of the axilla
brachial plexus and lymph nodes
Which muscle in the axilla region has the attachment that is the furthest away
lats
what is the apex of the axilla
armpit
what is the base of the axilla
formed by skin
what is the anterior wall of the axilla
pec minor and major
what is the lateral wall of the axilla
upper portion of humerus
what is the medical wall of the axilla
serrated anterior and rib cage
what is the posterior wall of the axilla wall
last , subscap,teres major
what is the brachial plexus nerve routes
anterior rami of c5 - t1
how many rami are there in the BP
5
how many trunks are there in the Bp
3
how many divisions are there in the BP
6
how many cords are there
3
how many branches are there in the BP
5
what are the 3 trunks of the BP
superior , middle , and inferior
what is the 5 main branches of the BP
MSC
axilliary
radial
median
ulnar
what are the names of the cords
lateral
posterior
medial
where does the BP travel through
between anterior and middle scalene
where do the anterior and middle scalene attach
1st rib
what is thoracic outlet syndrome
compression of the nerves , arteries ,or veins in the thoracic outlet region
where is the typical compression if someone has thoracic outlet syndrome ?
in the space between the clavicle and 1st rib , pec minor or cervical rib
if the patient has a compressed artiery what will be their symptom
they will say their arm feels cold
if the patient is experiencing compression of the nerve then their will complain of what
tingling in the arm
what is an anatomical conduit for neuromuscular structures to pass from the anterior axilla ray region to the posterior scapular region
quadrangular space
what is the superior boarder of the quadrangualr space
inferior margin of the teres minor
what is the lateral boarder of the quadrangular space
surgical neck of the humerus
what is the inferior boarder of the quadrangular space
superior margin of the teres major
what is the medial boarder of the quadrangular space
lateral margin of th long head of the triceps
what contents go thru the quadrangualr space
axilla ray nerve and the posterior circumflex humeral artery and vein
posteriorly, what is the superior boarder of the triangular space
inferior margin of the teres minor
what is the lateral boarder of the triangular space
medial margin of the long head of the triceps
what is the inferior board of the triangular space
the superior margin of the teres major
what are the contents going thru the triangular space
circumflex scapular artery and vein
what is the superior boarder of the triangular internal
inferior margin of the teres minor
what is the lateral boarder of the triangular interval
shaft of the humerus
what is the medial boarder of the triangular interval
lateral margin of the long head of the triceps
what contents pass thru the triangular interval
profundity brachial artery and radial never
with a compression of th peripheral nerve will it create a dermatome or cutaneous nerve pattern
cutaneous nerve pattern
what are the signs of arterial and/or never compression
coldness
what does nerve root compression lead to
dermatome pattern
what is the only synovisl joint articulation between the UE to the axial skelton
sternoclavicular joint
what are the 3 flexors of the brachium
biceps brachialis
coraobrachialis
brachialis
what is the main artery of the flexor compartment of the brachium
brachial artery
what is the main blood supply of the UE
brachial artery
what nerve goes straight into the coracobrachialis
musculocutaneous nerves
what is it called if there is a proximal bicep rupture
popeyes sign ( long head of the bicep)
is there surgery needed for distal bicep tendon rupture
no
what is the motor innervation to all muscles of the anterior compartment of upper arm
musculocutaneous nerve
what cord of the BP does the musculocutaneous nerve come off of
lateral cord
musculocutaneous nerve turns into the
lateral cutaneous nerve of the forearm
what is the sensory innervation fo the musculocutaneous nerve
to the skin of the lateral forearm
what is the artery in the extensor compartment of the brachium
deep brachial nerve
what is the nerve of the extensor compartment of the brachium
radial nerve C6-T1
what does the deep brachial artery go thru
triangular interval
what nerve supplies the entire posterior compartment
radial never
where does the radial nerve divide at
lateral epicondyle
what does the radial nerve divide into
deep and superficial branches
the deep branch of the radial nerve is entirely
muscular and articulate in its distribution
the superficial branch of the radial nerve is entirely
cutaneous in its distribution
what does the superficial branch supply sensation to
the dorsal of the hand and fingers
the deep radial nerve change sits names and continues distally as the
posterior interosseious nerve
