Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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
edit
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

Cardiovascular Notes

QuestionAnswer
The heart rests on: diaphragm
The heart is located in the: medistinum
apex is directed: anterior inferiorly to the left
the base or superior border is directed: posterior superiorly to the right
Anterior surface is: deep to the sternum and ribs
inferior surface is: portion that rests on the diaphragm
The right border faces the right lung
the left border or pulmonary border faces the left lung
superior right point superior border of the third right costal cartilage about 3cm to the right of the midline
superior left point inferior border of second left costal cartilage about 3cm to the left of the midline
inferior left point apex of the heart in the fifth left intercostal space about 9cm to the left of the midline
inferior right point superior border of the sixth right costal cartilage about 3cm to the right of the midline
pericardium is the membrane that surrounds and protects the heart
fibrous pericardium is tough, inelastic, dense irregular connective tissue
fibrous pericardium prevents overstretching of the heart, provides protection and anchors the heart in the mediastinum.
serous pericardium a thinner more delicate membrane that forms a double layer around the heart
parietal layer of serous pericardium is fused to fibrous pericardium
visceral layer of serous pericardium (epicardium) adheres to the surface of the heart
pericardial fluid is a slippery secretion that reduces friction between the membrane as the heart moves
pericardial cavity contains pericardial fluid
epicardium is also called serous pericardium
Epicardium is the external layer of the heart wall
epicardium is composed of two layers which are visceral layer of serous pericariumvariable layer of connective or adipose tissue
Myocardium is the middle layer composed of cardic muscle tissue
Myocardium is responsible for pumping action of the heart
Cardiac muscle fibres swirl diagonally around the heart and interlacing bundles
Endocardium is thin layer of endothelium overlying connective tissue
endocardium provides a smooth lining for the chambers of the heart and covers the valves of the heart
Endocardium is continuous with the endothelial lining of the large blood vessels attached to the heart.
compared to skeletal muscle Cardiac muscle fibres are shorter, less circular, transverse
two sepearte functional networks are the atria and ventricles
intercallated disks connect ends of cardiac muscle fibres to neighbouring fibres.
desmosomes hold fibres together
gap junctions allow muscle action potentials to conduct from one muscle fibre to its neighbour
each network contracts as a unit
listening to heart sounds is called auscultation
Sound comes primarily from blood tubulence caused by the cloising of heart valves
only the first and second sounds are loud enough to be heard through a stethoscope
the first sound S1 is louder an a bit longger than the second sound
lubb is created by blood turbulence associated with the closure of av valves
the seond sound s2 is caused by blood turbulence associated with the closing of the semilunar valves "dupp"
the sounds are best heard through a stethoscope
the closure of aortic valve is best heard superior right point
the colosure of the pulmonary valve superior left point
the colsure of the bicuspid valve is best heard inferior left point
the closure of the tricuspid valve is best heard inferior right point
valvular abnormalities include murmurs
Created by: xArachnax
Popular Anatomy sets

 

 



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