brachium and cubital fossa Flashcards
septa
tough fibrous CT that divide a limb segment into compartments
2 facial compartments of the arm
1 medial intermuscular septum
2 lateral intermuscular septum
separates muscles of anterior arm from medial side of triceps complex
medial intermuscular septum
separates muscles of anterior arm from lateral side of triceps complex
lateral intermuscular septum
anterior brachial compartment muscles: 3
1 biceps brachii
2 coracobrachialis
3 brachialis
anterior brachial compartment functions
forearm flexers
biceps also flexes shoulder and supinates forearm
forearm flexers (crosses elbow joint) muscles: 2
1 biceps brachii
2 brachialis
anterior brachial compartment innervation
musculocutaneous nerve
functional neurological level C5-6
anterior brachial compartment nerves passing throught (not innervating): 2
median nerve and ulnar nerve
anterior brachial compartment vascularization: 2
1 brachial artery
2 basilic vein and venae comitantes
distal attachment of supraspinatus on humerus?
superior facet
distal attachment of pectoralis major on humerus?
crest of greater tubercle (lateral lip)
distal attachment of latissimus dorsi on humerus?
in floor of intertubercular (bicipital groove)
distal attachment of deltoid on humerus?
deltoid tuberosity
distal attachment of subscapularis on humerus?
lesser tubercle
distal attachment of teres major on humerus?
crest of lesser tubercle
distal attachment of infraspinatus on humerus?
middle facet of greater tubercle
distal attachment of teres minor on humerus?
inferior facet of greater tubercle
two joint muscle crossing both the glenohumeral and elbow joints
biceps brachii
short head from tip of coracoid process what muscle and attach proximal/distal?
biceps brachii proximal attachment
long head from supraglenoid tubercle of scapular what muscle and attach proximal/distal?
biceps brachii proximal attachment
tuberosity of radius what muscle and attach proximal/distal?
biceps brachii and distal attachment
flexion and supination of forearm and assists in forearm flexion describes what muscle?
biceps brachii
innervation of musculocutaneous nerve (C5-6) is what muscle?
biceps brachii
tip of coracoid what muscle and attach proximal/distal?
coracobrachialis and proximal attachment