Exam 12: Cardiovascular System: Blood Vessels

Blood flow is slower in the capillaries of the finger than in the brachial vein of the arm.

Decreases in blood pressure reduce the frequency of action potentials from the pressure receptors in the aortic arch and this results in increased heart rate and vasoconstriction.

When blood pressure decreases,the kidneys secrete

Water moves across capillary walls by

The brachiocephalic artery branches to form the

What is the term for the location of the vasomotor center in the CNS?

The correct sequence of veins taking blood from the small intestine to the IVC is which of the following?

The smallest blood vessels are the

What is the term for the sounds heard through a stethoscope as a result of blood flow?

When chemoreceptors detect an increase in hydrogen ion concentration,centers in the nervous system respond by sending out impulses that _____ heart rate and cause _____.

The name of the innermost layer of blood vessels is

The opening in the interatrial septum that allows blood to go directly from the right atrium into the left atrium in fetal circulation is the

The centers in the central nervous system that are responsible for the regulation of blood pressure are located in the

What is the term for systolic pressure minus diastolic pressure?

The effect of the enzyme renin is to

What are the two differences in structure between arteries and veins?

At the arterial end of a capillary,the

The correct sequence of arteries taking blood to the spleen is aorta,

The correct sequence of arteries taking blood to the posterior knee region is aorta,_____,_____,_____,popliteal.

Constriction of blood vessels increases blood pressure because it increases