Chapter 19 Part 3 Blood Vessels

At a given point along a capillary, the net hydrostatic pressure (Net HP) is 20 mm Hg and the net osmotic pressure (Net OP) is 25 mm Hg. What is the Net Filtration Pressure (NFP) at that point? +45 mm Hg +5 mm Hg +10 mm Hg -5 mm Hg

-5 mm Hg

Which of the following would reflect the typical net hydrostatic pressure (HP) at the arterial end of the capillary? 12 mm Hg 1 mm Hg 34 mm Hg

34 mm Hg

Normal average blood pressure for a newborn baby is ________. 130/80 120/80 90/55 150/90

90/55

Which of the following is likely during vigorous exercise? The skin will be cold and clammy. Capillaries of the active muscles will be engorged with blood. Blood will be diverted to the digestive organs. Blood flow to the kidneys increases.

Capillaries of the active muscles will be engorged with blood.

Overall, fluid moves out of capillaries and into the interstitial space. Which of the following best describes why this occurs? Capillary reabsorption is greater than capillary filtration. Lymphatic vessel reabsorption removes fluid from the interstitial space. Capillary filtration is greater than capillary reabsorption Lymphatic vessel filtration is greater than lymphatic vessel reabsorption

Capillary filtration is greater than capillary reabsorption

Which of the following most correctly describes the need for a functional lymphatic system? Lymphatic vessels return blood to the heart. Lymphatic vessels return nondiffusible plasma proteins to the blood. Lymphatic vessels deliver fluid and solutes to the interstitial space. Lymphatic vessels return interstitial fluid to the blood.

Lymphatic vessels return interstitial fluid to the blood.

Near the arteriole end of a capillary, what is the relationship between net hydrostatic pressure and net osmotic pressure? Net hydrostatic pressure is greater than net osmotic pressure. Net hydrostatic pressure is less than net osmotic pressure. Net hydrostatic pressure is approximately equal to net osmotic pressure.

Net hydrostatic pressure is greater than net osmotic pressure.

How do net hydrostatic pressure and net osmotic pressure each change along the length of a capillary (from arteriole to venule)? Net osmotic pressure decreases and net hydrostatic pressure stays about the same. Net osmotic pressure stays about the same and net hydrostatic pressure increases. Net osmotic pressure stays about the same and net hydrostatic pressure decreases. Net osmotic pressure and net hydrostatic pressure both decrease.

Net osmotic pressure stays about the same and net hydrostatic pressure decreases.

Which of the following most accurately describes how net filtration pressure (NFP) affects bulk fluid flow across capillary walls? Negative NFP causes filtration. Positive NFP causes intercellular clefts to open. Positive NFP causes filtration. Negative NFP causes bulk fluid flow to stop.

Positive NFP causes filtration.

Which of the choices below does not involve tissue perfusion? delivery of oxygen and nutrients to, and removal of wastes from, tissue cells absorption of nutrients from the digestive tract gas exchange in the lungs blood clotting

blood clotting

In the capillaries, hydrostatic pressure (HP) is exerted by __________. blood pressure proteins in the blood

blood pressure

What are the smallest blood vessels in the body? arterioles veins arteries capillaries

capillaries

The net hydrostatic pressure (HP) is the hydrostatic pressure in the __________ minus hydrostatic pressure in the __________. interstitial fluid; capillary capillary; interstitial fluid

capillary; interstitial fluid

Arterial pressure in the pulmonary circulation is much higher than in the systemic circulation because of its proximity to the heart. True False

false

Veins only carry oxygen deficient blood. TrueFalse

false

When albumin levels in the blood are below normal, fluid absorption from the tissues into the bloodstream increase. True False

false

Net (positive) hydrostatic pressure tends to move fluid out of capillaries. The resulting bulk fluid movement is known as __________. reabsorption filtration active transport diffusion

filtration

Which of the choices below reflects the balance (or imbalance) between the direction and amount of fluid that flows across the capillary walls? hydrostatic pressure only plasma and formed element concentration hydrostatic and osmotic pressure blood volume and viscosity

hydrostatic and osmotic pressure

Bulk fluid movement across capillary walls is typically through what structures? intercellular clefts precapillary sphincters endothelial cells plasma membranes

intercellular clefts

Which net pressure draws fluid into the capillary? net osmotic pressure net hydrostatic pressure

net osmotic pressure

The colloid osmotic pressure in the capillary is caused by __________. proteins in the blood blood pressure

proteins in the blood

Net (positive) osmotic pressure tends to move fluid into capillaries. The resulting bulk fluid movement is known as __________. filtration reabsorption facilitated diffusion active transport

reabsorption

The form of circulatory shock known as hypovolemic shock is ________. any condition in which blood vessels are inadequately filled and blood cannot circulate normally the form of shock caused by anaphylaxis always fatal shock that results from large-scale loss of blood volume, or after severe vomiting or diarrhea

shock that results from large-scale loss of blood volume, or after severe vomiting or diarrhea

A sustained blood pressure of 140/90 or greater indicates hypertension in the patient. True False

true

The adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed autoregulation. True False

true

Vasodilation will result in increased blood flow to a given tissue. TrueFalse

true

Which of the following is a type of circulatory shock? vascular, due to extreme vasodilation as a result of loss of vasomotor tone cardiogenic, which results from any defect in blood vessels circulatory, where blood volume is normal and constant hypovolemic, caused by increased blood volume

vascular, due to extreme vasodilation as a result of loss of vasomotor tone

Reabsorption of fluid into the capillary takes place at the arterial end or venous end of the capillary? venous arterial

venous