shoulder and brachial regions Flashcards
what are the regions of the forelimb
omo - shoulder
brachium - shoulder to elbow
antebrachium - elbow to carpus (forearm)
carpus (wrist)
manus (hand) distal to wrist
digit (toe)
what us the scapula
type of flat bone
what is on the lateral surface of the scapula
spine - supraspinous and infraspinous fossa
acromion process
glenoid cavity (shoulder joint)
supraglenoid tubercle
what muscle attaches to the supraglenoid tubercle
biceps brachii
what is medial surface of the scapula
serrated
rough bone
what muscles attach to the medial surface of the scapula
serratus ventralis
subscapularis
difference of scapula in cat to dog
more rounded cranial angle than dog
suprahamate process (proximal to acromion process)
cats have a clavicle, dogs have a clavicular insertion
where are the 2 centres of ossification of the scapula
body
supraglenoid tubercle
potential problem in scapula
week point at tendon of origin of the biceps brachii muscle may cause an avulsion fracture
what part of the scapula is palpable
dorsal border
cranial border
cranial angle
acromion
extrinsic muscles of the scapula
brachiocephalic
omotransversarious
role of abductor muscles
move limb away from midline
role of adductor muscles
move limb towards midline
what type and shape of bone is the humerus
long bone
s-shaped
what is on the proximal end of the humerus
head
greater tubercle
lesser tubercle
intertubercular groove
what does the head of the humerus articulate with
glenoid cavity
what is on the distal end of the humerus
condyle (elbow joint) divided into 2 areas lateral and medial epicondyle
trochlea
capitulum
olecranon (caudal aspect)
radial fossa (cranial aspect)
supratrochlear foramen (hole)
what does the trochlea articulate with
radius and ulna
what does the capitulum articulate with
radius
difference in cat humerus to dog
no supratrochlear foramen
centres of ossification in the humerus
proximal epiphyses
body
medial epicondyle
medial half of the condyle
lateral half of the condyle
palpation landmarks of the humerus
greater tubercle
lateral epicondyle
medial epicondyle