Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

216 Chapter 17


The contraction, or period of contraction, of the heart that drives the blood onward into the aorta and pulmonary arteries. systole
Influencing the force or energy of muscular contractions. inotropic
The dilatation of the heart; or the period of dilatation, which is the interval between the second and the first heart sound and is the time during which blood enters the relaxed chambers of the heart from the systemic circulation and the lungs. diastole
A small, local, involuntary contraction of muscle resulting from spontaneous activation of a single muscle fiber or of an isolated bundle of nerve fibers. fibrillation
The reduction of a cell membrane potential to a less-negative value than that of the potential outside the cell. depolarization
Moving backward or against the usual direction of flow; reverting to an earlier state or worse condition (degenerating); catabolic. retrograde
A multinucleate mass of protoplasm produced by the merging of a group of cells. syncytium
Pertaining to the whole body rather than to a localized area or region of the body. systemic
Circulation which moves blood through the lungs and creates a link with the gas exchange function of the respiratory system pulmonary (or central)
Circulation which moves blood throughout all the other tissues of the body systemic (or peripheral)
In the circulatory system, depends on a blood volume that is sufficient to fill the blood vessels and a pressure difference across the system that provides the force that is needed to move blood forward. blood flow
Refers to the principles that govern the flow of blood in the vascular system hemodynamics
The relationship between pressure and resistance can be quantified by what has become known as _____________ law Poiseuille's
Describes the relationship between wall tension, pressure, and the radius of a vessel or sphere law of Laplace
Muscular portion of the heart, forms the walls of the atria and ventricles. myocardium
Are unique to cardiac muscle, contain gap junctions that serve as low-resistance pathways for passage of ions and electrical impulses from one cardiac cell to another intercalated discs
Is a thin, three-layered membrane that lines the heart and covers the valves endocardium
Large specialized fibers that allow for rapid conduction and almost instantaneous excitation of both the right and left ventricles. Purkinje
Created by: ACC Bio Harrison



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards