Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
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

Module 10 A&P

Cardio

TermDefinition
the heart is approx. size of a fist
Base broadest part of the heart
Apex point of maximum impulse
pericardium doubled wall sac around the heart
Pericardial cavity space that contains serous fluid to prevent friction as the heart beats
epicardium thin layer of squamous epithelial cells that covers the surface of the heart
myocardium cardiac muscles that performs the work of heart
endocardium thin layer of squamous epithelial cells that lines chamber of heart, prevents blood clot formation
superior and inferior vena cavae supply blood to the right atrium
left ventricle has thickest and strongest walls because it must generate enough force to push blood throughout the body
Cusps or Leaflets flaps of tissue that form valves
valves open and close in response to... pressure changes in heart
two artioventricular valves (tricuspid & bicuspid) regulate flow between atria and ventricles
valves prevent backflow into the ventricles
Pulmonary valve located between the right ventricle and the pulmonary artery
aortic valve located between the left ventricle and aorta
tricuspid valve located between the right atrium and right ventricle
Mitral valve located between the left atrium and left ventricle
Right coronary artery supplies blood to the right atrium most of the right ventricle and parts of the left atrium and ventricle
coronary arteries receive their blood supply when the ventricles relax
cardiac conduction SA node, fibers conduct impulses to left atrium, AV node, Bundle of HIS, right and left bundles branches, purkinje fibers
Automaticity the hearts ability to initiate its own electrical impulse
SA node fires at 60-80 beats per minute, hearts pacemaker, if fails another area will imitate heartbeat
AV node impulse from SA node slows here to give atria time to contract completely and ventricle to fill with blood, firing rate 40-60 beats a minute
cardiac cycle the series of events from the beginning of one heartbeat to the beginning of the next
cardiac output heart rate x stroke volume
medulla cardiac center in the brain
ejection fraction percentage of ventricles eject 60% to 80% of blood volume
Created by: Kylee_cheyenne
 

 



Voices

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:
Retries:
restart all cards