circulatory system Flashcards
has an open circulatory system
arthropods and most mollusks
closed circulatory system
vertebrates, annelid, worms, few mollusk
patent foramen ovale is normal in
calves
the L coronary artery gives rise to bith the paraconal and subsinousal interventricular arteries
dog and ruminants
he R coronary artery gives rise to the subsinousal interventricular branch
horse and pig
the subsinousal interventricular branch can arise from either coronary artery, but usually arises from the circumflex branch of the left coronary artery, as in the dog and ruminants
cat
common carotid arteries arise separately in
arise by a short, common bicarotid trunk in
dogs
ungulates
brachiocephalic and L subclavian arteries arise separately from the aortic arch in
carnivores and pig
only the brachiocephalic artery arises from the aortic arch. Both subclavian arteries arise from the brachiocephalic trunk.
horse and ruminants
the vertebral artery arises from the costocervical trunk, thus subclavian artery have only 3 branches
ruminants
the vertebral and costocervical arteries arise separately, thus subclavian artery have 4 branches
carnivores
on the left, the deep cervical artery arises from the subclavian, not the costocervical trunk and thus, the left subclavian artery has 5 branches
horse
Internal CA – in _____ the part outside the skull degenerates
cats and ruminants
the spleen’s capsule and trabeculae are more muscular in
carnivores and horses than in ruminants
spleen is elongated, dumb bell shaped in
carnivores
