Med. Physiology CARAL 9 – Flashcards

Which of the following equations correctly relates flow, pressure, and resistance?

The driving force for blood flow through the systemic circuit is __.

In comparison to the systemic circuit, the pulmonary circuit ___.

Which of the following equations is correct?

___ is/are the component(s) of a blood vessel's extracellular matrix that provide(s) the tensile strength required to withstand pressure.

The elastic nature of the largest blood vessel's, the aorta's, walls allows them to act as a ___, maintaining the driving force for blood flow while the heart is relaxed diastole.

What tissue or substance near or in artery walls allows them to store energy that is later used to maintain continuous blood flow through the circulatory system?

A person goes to the doctor and is told his blood pressure is 90/60. Which of the following is true?

Blood pressure is usually measured in the ___ artery, which is reflective of ___ pressure.

The contractile activity of smooth muscle cells within ___ is primarily involved in the control of organ blood flow and mean arterial pressure.

Which of the following is NOT specific for increasing blood flow to a specific organ?

Intrinsic control of organ blood flow refers to the fact that ___.

Chemicals released by metabolically active cells will cause which of the following?

A decrease in tissue oxygen is called ___.

An increase in blood flow to metabolically active tissue will increase ___.

An increase in the concentration of ___ within the interstitial space surrounding an arteriole would lead that vessel to constrict.

Which of the following substances is secreted by endothelial cells and causes vasodilation?

Any change in the relative distribution of cardiac output to an organ is typically due to changes in ___.

During exercise, which of the following tissues receive less blood flow compared to resting conditions?

What blood vessel type has the greatest overall cross-sectional area?

Which of the following anatomical features of capillaries favors the rapid exchange

Which of the following would cause relaxation of precapillary sphincters?

Glucose will move across continuous capillary walls by ___.

The portion of osomotic pressure exerted by ___ in the blood is known as oncotic pressure.

Given that the net filtration of fluid out of the capillaries averages about 3 liters per day, how is blood volume maintained in light of this apparent fluid loss?

Foreign materials are filtered out of the lymphatic fluid by ___ that are located within the lymph nodes.

What region of the cardiovascular system contains valves?

Veins functions as ___ reserviors due to their ___ compliance.

The high compliance off veins allows them to ___.

At rest, the greatest proportion of blood volume is present within the ___.

An increase in central venous pressure will cause ___.

An increase in the volume of blood ejected from the heart, with no change in total peripheral resistance, would ___.

The long-term regulation of arterial blood pressure involves ___.

Baroreceptors respond to ___, which is/are altered by mean arterial pressure

Which of the following will NOT occur in response to a decrease in the extent of stretch detected by a baroreceptor?

the reduction in organ blood flow that results from a decrease in mean arterial pressure would be exacerbated by the ___ that occurs as a consequence of the baroreceptor reflex.

The hormone vasopressin acts in the short term to ___ and in the long term to ___, thereby increasing mean arterial pressure.

Which of the following describes rhythmic changes in sympathetic and parasympathetic activity that affect heart rate coincident with respiration?

When we exercise, there is a redistribution of cardiac output toward the ___ and away from the ___.

Given the following information, calculate the net filtration pressure: capillary hydrostatic pressure = 30 mm Hg, interstitial fluid hydrostatic pressure = 5 mm Hg, capillary oncotic pressure = 25 mmHg, and interstitial fluid oncotic pressure = 10mm Hg.

Which of the following can cause edema?

Congestive heart failure on the left side of the heart results in:

Venous return is increased by:

As part of the baroreceptor reflex response to hemorrhage, which of the following will increase?

Hypertension can be caused by: