Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Normal Size Small Size show me how
A&P1-10 Cardio Hrt/V
Ch 10: Cardiovascular System - Heart & Vessels
| Term | Definition |
|---|---|
| Afterload | The pressure in the pulmonary trunk and aorta during diastole |
| Anastomoses | Circulatory routes that involve vessels merging together |
| Angiogenesis | New blood vessel growth |
| Arrhythmia | Abnormal heart rhythm |
| Atherosclerosis | Buildup of fatty deposits within arterial walls, which causes the walls to roughen and project to the lumen (open space) within the vessel |
| Baroreceptors | Sensors located in the aorta and carotid arteries that detect changes in blood pressure |
| Cardiac cycle | One complete contraction and relaxation of the heart |
| Cardiac output | The amount of blood ejected by each ventricle of the heart each minute (CO = HR [heart rate or beats per min] x SV [stroke volume]; CO written as __ mL/min) |
| Chronotropic factor | Anything that changes the heart rate (of the autonomic nervous system) |
| Diastole | Relaxation of a heart chamber, usually refers to the action of the ventricles |
| Intercalated disks | Specialized junctions between cardiac muscle cells that enable the fast transmission of electrical impulses form one cell to another |
| Ischemia | The lack of blood flow |
| Mean arterial pressure (MAP) | The average pressure arteries must be able to withstand (MAP = diastolic pressure + 1/3 pulse pressure) |
| Portal route | A circulatory route that contains 2 capillary beds before blood is returned to the heart (heart → arteries → capillaries → intervening vessels → capillaries → veins → heart) |
| Preload | The amount of tension in the myocardium of the ventricular walls |
| Pulse pressure | The surge of pressure that small arteries must withstand with each ventricular contraction (pulse pressure = systolic pressure - diastolic pressure) |
| Stroke volume | The amount of blood ejected from each ventricle per beat |
| Systole | Contraction of a heart chamber, usually refers to the action of the ventricles |
| Tunics | 3 layers of a vessel wall (arteries & veins) |
| Venous return | The process of returning blood to the heart through veins |
Created by:
teribere
Popular Anatomy sets