Biology

Biology, 01.08.2019 16:30, lilisncz

Why does blood pump out of a cut on the human skin? blood flow decreases changing capillary permeability blood flow increases changing capillary permeability blood supply decreases as tissue damage causes a release of vasoactive/chemotactic factors blood supply increases as tissue damage causes a release of vasoactive/chemotactic factors?

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Biology, 29.07.2019 05:30, hdjsjfjruejchhehd

The rate at which blood flows through the human body changes in response to many factors. which statement describes one of these factors and its effect on blood flow? a.the narrowing of blood vessels increases pressure and leads to faster blood flow. b. high blood viscosity increases the resistance in the blood vessels and leads to slower blood flow. c. low blood ph decreases the rate of diffusion through the blood vessels and leads to slower blood flow. d.the changing of the shape of red blood cells to a crescent shape decreases resistance and leads to faster blood flow.

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Biology, 30.07.2019 11:40, shaylawaldo11

The rate at which blood flows through the human body changes in response to many factors. which statement describes one of these factors and its effect on blood flow? a a high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow. b a low blood ph decreases the rate of diffusion through the blood vessels and leads to slow blood flow. c the changing of the shape of red blood cells to a crescent shape decreases resistance and lead to a faster blood flow. d the narrowing of blood vessels increases pressure and leads to a faster blood flow.

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Biology, 31.10.2019 04:31, stormmesa1

The velocity and pressure of blood is slowest and lowest in the capillary beds. which of the following is not an accurate description of the benefits of slow, low pressure blood in the capillary beds? - lower pressure in the capillary bed to increase pressure in the venous circulation. - lower pressure reduces the chance of injury to delicate capillary vessels. - lower pressure on the venous end of the capillary bed allows for greater reabsorption of fluid back to the plasma. - slower blood flow through capillaries allows more time for diffusion to take place in the capillary bed.

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Biology, 31.10.2019 21:31, zgueyeu

Blood flow is regulated in all three types of blood vessels through and dilation. *contraction of blood vessels blood flow, while of blood vessels, or dilation, allows free flow of blood. *muscle fibers control the constriction and dilation of vessels. in the capillaries, rings of muscle called capillary control blood flow. *the directional flow of blood in the veins is controlled with , which prevent backward blood flow when closed, and allow blood to flow only the heart when open.

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