Flashcards in Blood Vessels Deck (124)
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1
What are the 3 types of blood vessels? Direction of fluid?
Arteries: away from the heart
Capillaries: sites of exchange
Veins: Toward the hear
2
State if the blood is oxygenated or deoxygenated in veins and arteries?
Arterties: oxygenated
Veins: Deoxygenated
3
What is the pathway of the vessels beginning from the heart?
elastic arteries -> muscular arteries -> arterioles -> capillaries -> venules -> veins
4
What type of blood do the veins and arteries carry in the systemic circulation?
arteries carry oxygenated blood and the veins carry deoxygenated blood
5
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
6
What are the 3 layers in blood vessels from deep to superficial?
tunica intima, tunica media, and tunica externa
7
What is the space containing blood in the blood vessels?
lumen
8
Which layer of the blood vessel consist of smooth muscle and elastin, and muscle activity regulated by the vasomotor nerve fibers?
tunica media
9
Which layer in the blood vessel walls are connective tissue (collagen), reinforces vessels, and anchors it to nearby organs?
Tunica externa
10
Which layer in the blood contains blood in lumen, endothelium?
Tunica intima
11
What is the purpose of the endothelium in the blood vessel walls?
minimizes friction
12
Which layer in the blood vessels wall is responsible for vasodilation and vasoconstriction?
Tunica media
13
Which vessel consist of only the tunica intima?
capillaries
14
Which vessel consist of a thin tunica media and thick tunica externa?
veins
15
Which vessel consist of a thick tunica media and thin tunica externa?
arteries
16
What are the three types of arteries?
elastic, muscular, and arterioles
17
Also known as conducting arteries, these have a large, thick walls, arteries near the heart, tunica media with elastic tissue
elastic arteries
18
Also known as the distributing arteries, these arteries distribute blood to specific organs.
Muscular arteries
19
Leads into capillary beds, control minute by minute blood flow by vasoconstriction or vasodilation and important in BP regulation
arterioles
20
How do the elastic arteries act as pressure reservoirs?
expand during systole t receive blood and recoiling during diastole to push blood forward
21
What is the function of the capillaries?
exchange of materials between blood and interstitial fluid
22
What are the three structural types capillaries?
continuous, fenestrated, and sinusoid
23
Which type of capillary is the most common, primarily in the skin and muscles, and has intercellular clefts?
continuous
24
What is the function of intercellular clefts?
allow passage of fluids and small solutes
25
Which type of capillary is have endothelial cells that increase permeability, and found where absorption or filtrate formation occurs?
fenestrated capillaries
26
What is the location where absorption or filtrate occur in capillaries?
small intestine and kidneys
27
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?
sinusoid capillaries
28
What is the location that allows large molecules to pass between blood and surrounding tissues?
liver, bone marrow, and spleen
29
Which disorder has thicker and stiffer artery walls?
arteriosclerosis
30
