A&P chapter 21

Near the carotid sinus

the common carotid divides into an internal and an external branch.

The muscular layer of a blood vessel is the

tunica media

The brachial artery branches to form the radial and ________ arteries.

ulnar

An important artery that supplies blood to the brain is the ________ artery.

internal carotid

Pulmonary arteries carry blood to the

lungs.

Total peripheral resistance is related to all of the following, except the

osmolarity of interstitial fluids

Exchange between a blood vessel and the cells that surround it can occur only in

capillaries.

Metabolites exchange by diffusion with tissue cells in which of the following locations?

capillary

Capillaries that have a complete lining are called

continuous capillaries

The ________ divides the aorta into the thoracic aorta and the abdominal aorta.

diaphragm

Blood pressure is determined by

estimating the pressure needed to close off an artery with an external pressure cuff

Capillaries with a perforated lining are called

fenestrated capillarie

Branches of the popliteal artery include the

fibular artery.

Compared to arteries, veins

have thinner walls.

blood travels from arteries to veins,

pressure drops.

Blood moves forward through veins because of all of the following, except

pumping by the smooth muscle in the wall of the vein

Which of the following statements is false concerning the movement of fluid between capillaries and interstitial space?

The net filtration pressure is usually zero.

Blood flow to a tissue will increase if the

arterioles dilate.

Blood pressure is highest here.

artery

Each of the following will cause an increase in blood pressure, except

increased levels of ANP (atrial natriuretic peptide).