A&P chapter 13- vascular system Flashcards
the RV pumps blood into the _____, which divides into the ___________, one gong into each lung
pulmonary artery, rt and lt pulmonary arteries
where does the exchanges of oxygen and carbon dioxide take place
in the pulmonary capillaries that surround the alveoli of the lungs
the LV pumps blood into the ____
aorta
what is the circle of willis
an important arterial anastomosis, a circle of arteries around the pituitary gland. formed by the rt and lt internal carotid arteries and the basilar artery
what is hepatic portal circulation
a subdivision of systemic circulation, blood from abdominal digestive organs and spleen circulates through the liver before returning to the hart
which veins unite to form the portal vein
superior mesenteric ven and splenic vein
when BP decreases, the kidneys produce _____, which initiates a series of reactions that result in the formation of ______
renin, angiotensin II
angiotensin II causes secretion of _______ by the ______ which increases reabsorption of Na+ ions and water by the kidneys, which will _______
aldosterone, increase BP
