Create an account
Delivery system, blood pressure regulation, exchange of nutrients and waste, redistribution of blood and temperature regulation
List the 5 main functions of blood.
The force exerted against the walls of the (large) arteries due to pumping of the heart is known as _____.
When taking blood pressure, the _____ is forcibly compressed until blood flow is stopped.
When taking blood pressure readings, the _____ pressure is indicated by the first korotkoff sounds heard through the stethoscope.
When taking blood pressure readings, the _____ pressure is recorded when the korotkoff sounds disappear.
Low pressure in the veins
Due to __________, blood relies on three other mechanisms to return blood back to the heart.
Skeletal muscle pump, venoconstriction, respiratory pump
List the three mechanisms used to return blood back to the heart.
Sympathetic stimulation of the SA node, av node, myocardium of the heart, and arterioles
In what ways does the body act to raise blood pressure when it is too low?
High / Low
Contraction of the heart muscle forces blood out of the ventricles from an area of (high/low) pressure to an area of (high/low)
When an increase in vessel diameter causes a decrease in resistance and a decrease in blood pressure this is called _____.
when a decrease in vessel diameter causes an increased resistance and increased BP it is known as _____.
True or False: an increase in SV and/or HR can decrease cardiac output and therefor BP.
In vascular resistance the sympathetics stimulate the _____ to constrict and thus increases blood pressure.
Viscosity of blood and length of the blood vessels
How do blood and the blood vessels effect vascular resistance.
False (parasympathetics may quiet the sympathetics but they do not directly affect the blood vessels.
True or False: the parasympathetics act to directly affect the vascular resistance of the blood vessels.
Aortic arch and carotid sinus
In what two areas are the rapidly acting mechanisms called baroreceptors located?
The renin-angiotensin aldosterone system and ADH act to (increase/decrease) blood pressure.
The atrial natriuretic peptide and brain natriuretic peptide act to (increase/decrease) blood pressure.
False (blood moves slowly to provide time for exchange)
True or False: the blood in a capillary bed moves swiftly through these small vessels.
At the level of the _____ oxygen, water, electrolytes, and glucose move out of the blood stream into the surrounding tissue space.
Diffusion, filtration and osmosis
List the 3 forces involved in substance exchange across a capillary wall.
True or False: the capillaries pull 100% of the fluid they bring in back out on their way back to the heart.
An excess excretion of _____ in the urine results in the build-up of fluid in the tissue space.
Heart failure, severe burn, kidney disease, kidney damage and blocked lymphatic drainage
What 5 things are mechanisms or causes of edema.
Kidney damage may cause a lack of ______ which decreases osmotic functions and increases the amount of fluid left in the interstitial space.
Autonomic nervous system and hormones
These two factors may cause variations in blood flow distribution.
_____ elevations causes vasodilation of the vessels of skin allowing the skin to release heat and lower body temperature.
Temperature decreases cause _____ of vessels of the skin diverting blood and warmth to the core of the body.
blood flow / blood pressure
A thickening in the arterial walls can cause decreased ____ and increased _______.
True or False: as we age our valves become less effective and more susceptible to varicosities.
True or False: as we age our baroreceptors become less effective and can cause dizziness and falls.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together