Cardiovascular System Flashcards
(42 cards)
Systole
Contraction phase of a heartbeat
Diastole
Relaxation phase of a heartbeat
Preload
The amount of ventricle stretch at the end of diastole
After load
The amount of pressure the heart needs to extend to eject the blood during ventricular contraction
How much do ventricles fill passively
75%
How much does arterial push to fill the ventricles ( atrial kick)
%25
Universal donor
O negative
Universal recipient
AB positive
Endocardium
Outermost layer
Contains blood vessels
Myocardiaium
Middle layer
Contractile tissues
Thickset
Epicardium
Innermost layer
Composers of vowels inner lining of chambers vessels, and nerves
Pericardium
A fibrous sac that encloses the heart
3 parts
Visceral
Innermost part of the pericardium
Parietal
Middle part of the pericardium
Fibrous
Most outside part of the pericardium
Right coronary artery
Supplies, right atrium, and most of the right ventricle
Left coronary artery
Supplies blood to the left ventricle left atrium and inter-ventricular septum
Left anterior descending artery
Supplies blood to the front and bottom of the left ventricle and the front of the steptum
Left circumflex artery
Supplies blood to the lateral walls of the left that circle in the left atrium
And in 50% of the population to the SA node it also supplies blood to the left posterior fasciculus
Of the left bundle branch, this artery circles, the left ventricle and rice blood to the ventricles posterior portion
Coronary sinus
Empties into the right atrium
When do the coronary arteries fill up?
When the heart is relaxed
Kortikoff sounds
This sounds heard when the Sega monometer when taking a blood pressure
Pulse pressure
The difference between systolic and diastolic pressure
Frank Sterling law
The greater the stretch, the stronger the contraction
