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25 Cards in this Set
- Front
- Back
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Aneurysm |
Loss of elasticity in blood vessel wall; look like a swell/bulge in heart |
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Arteriosclerosis |
Hardening of the arteries. |
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Anastomoses |
Blood vessels fuse together |
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Arteriovenous anastomoses |
Artery and vein fuse together |
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Angiogenesis |
Formation of new blood vessels; grows around heart clot; when gain weight; during pregnancy |
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Vasomotion |
Regulating blood flow to different parts of body |
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Varicose Veins |
Painful; sensory neurons in veins; so much pressure on walls=elasticity lost (restriction of blood flow to heart) |
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Hemorrhoids |
pressure=decrease elasticity=blood vessels can protrude |
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Majority of blood in... |
Veins |
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Capacitance vessels |
expand easily to accomodate changes in blood volume; veins |
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Venocontriction |
Veins constrict; blood moves into arteries and capillaries |
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Venous reserve mobilized |
Blood is shifted from veins to service brain and skeletal muscles |
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Blood Flow |
Volume of blood flowing through a vessel in a tissue within a set period of time |
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Blood Pressure |
Hydrostatic Pressure pushes blood through capillary beds |
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Hydrostatic Pressure |
Pressure from the heart |
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Blood Pressure (BP) |
Arteriol Pressure
Base of Aorta=100mmHg Start of Capillary Bed=35mmHg |
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Capillary Hydrostatic Pressure (CHP) |
Proximal Capillary End=35mmHg Distal Capillary End=18mmHg |
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Venous Pressure |
Venules=18mmHg Right Atrium=2mmHg |
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Vascular Resistance |
Friction between blood and vessel walls |
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Elastic Rebound |
Arteriol Walls stretch, recoil, blood forced back toward the coronary arteries, and toward systemic capillaries |
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DIffusion |
molecules move high to low concentration |
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Filtration |
Hydrostatic Pressure pushes materials across membrane |
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Capillary Hydrostatic Pressure (CHP) |
Water, solutes, forced out of blood; larger solutes and proteins remain in blood; occurs at atrial end where CHP is highest |
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Blood Colloid Osmotic Pressure (BCOP) |
Remains constant across a capillary: 25mmHg. Blood colloids (proteins) cause water to move into the capillaries. |
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Hemorrhage |
Bleeding out |
