Flashcards in Blood Vessels Deck (124)
What are the 3 types of blood vessels? Direction of fluid?
Arteries: away from the heart
Capillaries: sites of exchange
Veins: Toward the hear
State if the blood is oxygenated or deoxygenated in veins and arteries?
What is the pathway of the vessels beginning from the heart?
elastic arteries -> muscular arteries -> arterioles -> capillaries -> venules -> veins
What type of blood do the veins and arteries carry in the systemic circulation?
arteries carry oxygenated blood and the veins carry deoxygenated blood
What type of blood do the veins and arteries carry in the pulmonary circulation?
arteries carry deoxygenated blood to the lungs and the veins carry oxygenated blood from the lungs to the heart
What are the 3 layers in blood vessels from deep to superficial?
tunica intima, tunica media, and tunica externa
What is the space containing blood in the blood vessels?
Which layer of the blood vessel consist of smooth muscle and elastin, and muscle activity regulated by the vasomotor nerve fibers?
Which layer in the blood vessel walls are connective tissue (collagen), reinforces vessels, and anchors it to nearby organs?
Which layer in the blood contains blood in lumen, endothelium?
What is the purpose of the endothelium in the blood vessel walls?
Which layer in the blood vessels wall is responsible for vasodilation and vasoconstriction?
Which vessel consist of only the tunica intima?
Which vessel consist of a thin tunica media and thick tunica externa?
Which vessel consist of a thick tunica media and thin tunica externa?
What are the three types of arteries?
elastic, muscular, and arterioles
Also known as conducting arteries, these have a large, thick walls, arteries near the heart, tunica media with elastic tissue
Also known as the distributing arteries, these arteries distribute blood to specific organs.
Leads into capillary beds, control minute by minute blood flow by vasoconstriction or vasodilation and important in BP regulation
How do the elastic arteries act as pressure reservoirs?
expand during systole t receive blood and recoiling during diastole to push blood forward
What is the function of the capillaries?
exchange of materials between blood and interstitial fluid
What are the three structural types capillaries?
continuous, fenestrated, and sinusoid
Which type of capillary is the most common, primarily in the skin and muscles, and has intercellular clefts?
What is the function of intercellular clefts?
allow passage of fluids and small solutes
Which type of capillary is have endothelial cells that increase permeability, and found where absorption or filtrate formation occurs?
What is the location where absorption or filtrate occur in capillaries?
small intestine and kidneys
Which type of capillary has fenestrations, large intercellular clefts, and incomplete basement membrane, allows large molecules and blood cells t pass between blood and surrounding tissues?
What is the location that allows large molecules to pass between blood and surrounding tissues?
liver, bone marrow, and spleen
Which disorder has thicker and stiffer artery walls?