Vocab Flashcards
Atherosclerosis
plaque accumulation within the lumen of the artery
What is associated with Atherosclerosis?
HTN, stroke, angina, heart attack, renal failure
CHF is usually caused by these 2 things:
NTN, AMI
Left side of the heart is:
Thicker than the right because the left pumps the blood to the body.
Septum
wall
AV valves:
tricuspid 3 flaps
mitral (bicuspid) 2 flaps
Semilunar valves:
aortic valve
pulmonic valve
S1 heart sound is what?
“lubb” closing of the AV valves
S2 heart sound is what?
“dubb” closing of the semilunar valves
Stenosis
thickening or hardening of tissue
Anastomoses
When the body creates its own bypass
Poiseuille’s Law
Amount a vessel can transport is related to its diameter
Heart beat is what wave to what wave?
end of the T wave to the end of the T wave
Atrial kick is related to what % of cardiac output?
30%
Stroke volume:
amount of blood ejected from the ventricle with each hear beat. (Basically your heart beat)
Preload:
pressure in the filled ventricle at the end of diastole
Frank-Starling Law
greater the volume of blood in the heart during diastole the myocardium will stretch causing a more forceful contraction.
Frank-Starling Law works on what?
Inotropic effect
Systemic Vascular Resistance
resistance to flow of blood determined by the vessel diameter
Hypertrophy
process of thickening of cardiac chamber wall
Excitability
ability of cardiac muscle cells to respond to an external stimulus. “When David gets excited, Wes gets irritated.”
Conductivity
ability of cardiac cells to receive an electrical stimulus and conduct that impulse to an adjacent cell. 1 cell fires another cell accepts and continues.
Automaticity
ability of cardiac pacemaker cells to spontaneously initiate an electrical impulse
Contractility
ability of cardiac cells to shorten causing muscle contraction in response to electrical stimulus
