upper limb Flashcards
borders of quadrilateral space
above teres minor
below teres major
medially long head tricps
lateral surgical neck fo the humerus
what splits the arm into the ant and post comp
intermuscular septa from deep branchial fascia
what r the muscles in the posterior compartment and how many
1 triceps brachii
heads of triceps brachii
long lateral and medial
what innervates triceps brachii
radial nerve
tendons of tricepts brachii
converge via a common tendon onto olecranon of the ulna
origin and action of long head of triceps brachii
infraglenoud tubercle
extends elbow
extends shoudler joint
origin and action of medial head of triceps brachii
posterior humerus, distal to radial groove
extends elbow
origin and action of lateral head of triceps brachii
posterior humerus, proximal to radial groove
extends the elbow
teres major vs minor and long head of triceps brachii
major passes behind but minor passes in front
roots of musculocutaneous nerve
C5-7
roots of axillary nerve
C5-6
roots of median nerve
C5-T1
roots of radial nerve
C5-T1
roots of ulnar nerve
C8-T1
name contents of cubital fossa medial to lateral (5)
median nerve brachial vein (splits into r and u) brachial artery (splits into r and u) biceps tendon superficial radial nerve
borders of cubital fossa
superior= line between epicondyles medial= prontator teres lateal= brachioradialis
what structures r on the posterior of the distal humerus (2)
olecranon fossa and trochlea
what structures r on the anterior of the distal humerus (4)
coronoid fossa
radial fossa
trochlea
capitulum
what attaches to teh medial epicondyle of humerus and what compartment
flexors (ant comp muscles)
what attaches to the lateral epicondyle of humerus and what compartment
extensors
posterior comp
important structures on the radius (3)
head
neck
radial tuberosity
important structures on the ulnar (4)
olecranaon
trochlear notch
radial notch
coronoid process
what is the other action of the rhomboids
bring back the position of the rotated scapula back to normal
what nerve runs posterior to the media epicondyle
ulna
where can the radial nerve be found in the arm and what is this called
between posterior and anterior compartments on lateral side
spiral groove
what r the structures on the scapula (4 fossa, 2 bone extensions)
supraspinatus fossa infraspinatus fossa glenoid fossa subscapularis fossa acromium coracoid process
what r the deep structures of the cubital fossa (2)
brachial artery and median nerve
what is the bicipital aponeurosis
fascial extension of biceps tendon
function of bicipital aponeurosis
separates superficial veins and deep structures
what r the anterior arm muscles
biceps brachii
brachialis
coracobrachialis
what innervates the anterior arm muscles
musculocutaenous
heads of biceps brachii
long and short
attachment of long and short head of biceps brachii
long head- supraglenoid tubercle
short head- coracoid process
INSERTION of long and short head of biceps brachii
common tendon on radial tuberosity of radius
additional function of long head of biceps brachii
stabilises shoulder joint as it pierces that joint capsule of the shoulder joint
action for biceps brachii (3)
flexes elbow and shoudler joint
powerful supinator of forearm when elbow is flexed
position of brachialis in relation to biceps brachii
deep to biceps brachii
attachment of brachilias
anterior aspect of lower half of shaft of humerus
insertion of brachialis
ulnar tuberosity
action of brachialis
powerful flexor of elbow joint
attachment of coracobrachialis
coracoid process of scapula
insertion of coracobrachialis
medial aspect of middle part of humerus
action fo coracobrachialis
weak flexor of shoulder joint
what 3 muscles originate from coracoid process
biceps short head
coracobrachialis
pectoralis minor
