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