Create an account
Cardiac muscle has more mitochondria and depends less on a continual supply of oxygen than does skeletal muscle.
Congestive heart failure means that the pumping efficiency of the heart is depressed so that there is inadequate delivery of blood to body tissues.
The left ventricular wall of the heart is thicker than the right wall in order to ________.
pump blood with greater pressure
The term for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is ________.
If cardiac muscle is deprived of its normal blood supply, damage would primarily result from ________.
decreased delivery of oxygen
If the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells ________.
tetanic contractions might occur, which would stop the heart's pumping action
When viewing a dissected heart, it is easy to visually discern the right and left ventricles by ________.
noticing the thickness of the ventricle walls
The adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed autoregulation.
An obstruction in the superior vena cava would decrease the flow of blood from the head and neck to the heart.
Which of the following is not one of the three main factors influencing blood pressure?
Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of ________.
The circulatory route that runs from the digestive tract to the liver is called ________.
hepatic portal circulation
Select the correct statement about the movement of materials at the capillary level.
Carbon dioxide moves from its production site into the interstitial fluid.
Which tunic of an artery is most responsible for maintaining blood pressure and continuous blood circulation?
The form of circulatory shock known as hypovolemic shock is ________.
shock that results from large-scale loss of blood volume, or after severe vomiting or diarrhea
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