Blood vessels and blood pressure

Blood pressure is determined by

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

Which of the choices below reflects the balance (or imbalance) between the direction and amount of fluid that flows across the capillary walls?

hydrostatic and osmotic pressure

Which of the following will decrease peripheral resistance?

increase in vessel radius

Which of the following will cause a decrease in blood pressure?

increased levels of ANP (atrial natriuretic peptide)

If cardiac output increases and resistance in arterioles does NOT change, what happens to arterial blood pressure?

increases

Which of the following statements is correct?

osmotic pressure will remain relatively consistent throughout the capillary bed

Blood pressure increases with all of the following except increased

parasympathetic innervation.

As blood travels from arteries to veins,

pressure drops.

The main control of peripheral resistance occurs in the

arterioles.

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

capillaries

The pressure that declines from arterial to the venous end of a capillary is the

capillary hydrostatic pressure.

Which pressure is created by the presence of large proteins in the blood, such as albumin?

colloid osmotic pressure

Which capillary would be least likely to allow substances to enter or exit the blood due to tight junctions that join the endothelial cells?

continuous capillaries

Blood pressure is lowest in the

veins.

After blood leaves the capillaries, it enters the

venules.