Term
|
Definition
| increases contractility (F of contraction) |
|
|
Term
| Epinephrine/norepinephrine |
|
Definition
-beta receptors
-increase Ca, contractility, lower duration |
|
|
Term
|
Definition
| volume in ventricle when it begins to contract |
|
|
Term
|
Definition
| increasing stretch(end diastolic volume) leads to increasing stroke volume |
|
|
Term
|
Definition
-both chambers relax
-ventricles fill passively |
|
|
Term
|
Definition
| atrial contraction forces small amount of blood in ventricles |
|
|
Term
| isovolumic ventricular contraction |
|
Definition
| pushes AV valves closed but cannot open semilunar valves |
|
|
Term
|
Definition
| semilunar valves open as pressure rises |
|
|
Term
| isovolumic ventricular relaxation |
|
Definition
ventricles relax
semilunar valves close |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| rate of depolarization in autorhythmic cells |
|
|
Term
|
Definition
-determined by force of contraction
influenced by contractility and end diastolic volume |
|
|
Term
|
Definition
| increases vasoconstriction and contractility |
|
|
