Large Animal Limbs Flashcards
Cutaneous trunci
significant muscle in both size and thickness in ungulates and horses
omotransversus
intimately joined with brachiocephalicus
Subclavius
unique to horses, pigs, (small remnant in cows), lies in font of deep pectoralsu
subclavius origin
cranial part of sternum
subclavius insertion
ends dorsally to follow cranial surface of the supraspinatus, inserts on epimysium
lacertus fibrosis
in horse: ligamentous like attachment from bicepts to the extensor carpi radialis, helps prevent limbs from collapsing
interosseus in horse
largely tendinous, better known as suspensory ligamanent
where does the interosseus arise from
palmar ligament and adjacent part of large metacarpal bone
where does the interosseus descend
between splint bones and divides shortly above the fetlock
interosseus insertion on a horse
abaxial surface of proximal sesamoids, each detaches extensor branches that winds down P1 to join common extensor tendon
gluteobiceps
in bovine, superficial gluteal is wholly incorporated into the biceps
3 muscles of the hamstrings in horse
biceps femoris, semitendinosus and semimembranosus
what is different about the 3 hamstrings in horses
have vertebral heads + the usual pelvic heads
why do bovine gluteal muscles appear much weaker?
lacks vetebral origins of the semimembranosus and semitendinosus –> looks less full
describe the stifle in bovine and equine
patellar ligament divided into 3 distinct parts: lateral, intermediate and medial patellar ligament that form loops that hook over the medial trochlear ridge –> allows them to use little muscular effort in standing position
