Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

The first heart sound, "lubb," marks the point when

the atrioventricular valves close

The difference between the end-diastolic volume (EDV) and the end-systolic volume

stroke volume

Contraction of the chambers of the heart is


Parasympathetic stimulation from the vagus nerve results in:

a decrease in heart rate

If blood pressure is increased at the arterial baroreceptors, what would happen with the activity level of the parasympathetic nervous system (PNS) and sympathetic nervous system (SNS)?

increased PNS activity and decreased SNS activity the PNS activity would increase and the SNS activity would decrease in an attempt to lower blood pressure.

To defend blood volume against dehydration, the body

experiences a recall of interstitial fluids.
increases water intake.
accelerates reabsorption of water at the kidneys.
experiences an increase in the blood colloidal osmotic pressure.

In response to hemorrhage, there is

mobilization of the venous reserve.

Homeostatic mechanisms in response to blood loss include all of the following

uptake of interstitial fluid due to reduced capillary pressure.
increased thirst and water intake.
activation of ADH secretion.
activation of aldosterone secretion.

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!


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

Voice Recording