Cardiovascular System Flashcards
(27 cards)
What is in the circulatory system
Heart, blood and lymphatic vessels
Base of heart
Upper portion that is more craniodorsad, attached to large arteries, veins, and pericardial sac.
Apex of heart
Lower portion that is more caudoventral, no attachments
Right side
More cranial
Left side
More caudal
Pericardium
Serous membrane that creates a closed cavity
Pericardium functions
Protecting and lubrication
Three layers of pericardium
Visceral, parietal, and pericardial sac
Visceral peri
Inner layer
Parietal peri
Outer layer
Pericardial sac
Thin comprised of parietal pericardium and fibrous layer
Atrium
Received blood
Ventricle
Pumped away from heart
Epicardium
Superficial layer
Endocardium
Line chambers valves and blood vessel
Myocardium
Cardiac muscle
Atrioventrical valve
Between atrium and ventricle, opens by contraction of the atria pushing into closed by contraction punching blood against ventricle side
Semilunar valve
Located at each ventricle outflow
Arotic
Junction of the left ventricle and aorta
Pulmonary valve
Junction of the right ventricle and pulmonary trunk
Micro anatomy
Vena cava, conus arteriosus, pulmonary arteries, pulmonary veins, aorta
Micro anatomy arrows
Deoxygenated enters heart, moved to lungs, oxygenated blood returns to heart, oxygenated leaves hearts and moves to body
Blood vessels
Network that transports blood to and from heart
Arteries
Carry blood away from heart
