CH 19: Blood Vessels

reduction in the concentration of albumin in blood plasma would alter capillary Exchange by

decreasing osmotic pressure

the common iliac veins drain the legs and blood empties into the

inferior vena cava

the blood vessel that drains the head and neck

internal jugular vein

Which statement best describes arteries

All carry blood away from the heart.

Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of ________.

Capillaries

Arteriole blood pressure increases in response to all but which of the following?

Falling blood volume

Supplies the kidneys

renal artery

a person suddenly gaining significant amounts of adipose tissue can expect all of the following physiological changes except one. Which of the following is least likely to occur with a sudden and significant gain in adipose tissue?

Increases parasympathetic nerve impulses to the heart

True or False: An increase in blood viscosity will cause an increase in peripheral resistance

True

histologically, the _____ is smooth muscle, and sometimes supported by elastic fibers

Tunica media

Which blood vessel contains the highest blood pressure

arteries

first branch of the aortic arch

brachiocephalic trunk

the first branch off the abdominal aorta

celiac trunk

the influence of blood vessel diameter on peripheral resistance is

significant because resistance is inversely proportional to the fourth power of the vessel radius

True or False: in red born marrow newly formed blood cells enter the circulation. You would expect to see many ______ in red bone marrow

sinusoid capillaries

The pulse pressure is

systolic pressure minus diastolic pressure

Factors that aid venous return include all except

urinary output

The direct blood vessels that drain capillaries are called

venules

which of the following would have the least influence on blood pressure

white blood cell count