Blood Pressure Flashcards
What is systolic pressure, and when does it occur?
-Highest pressure in cardiac cycle
-Occurs when heart contracts and pumps blood out
What is diastolic pressure, and when does it occur?
-Lowest pressure in cardiac cycle
-Occurs when the heart relaxes and fills with blood
What is blood pressure?
Force of blood against arterial walls
Ventricles in Diastole:
Bicuspid and tricuspid valves open or closed?
Blood flowing past bi and tricuspid valves?
Blood flowing into ventricles from atria?
Semilunar valves open or closed?
Blood flowing past semilunar valves?
Blood flowing out of ventricles into aorta or pulmonary artery?
Open
Yes
Yes
Closed
No flow
No flow
Ventricles in Systole:
Bicuspid and tricuspid valves open or closed?
Blood flowing past bi and tricuspid valves?
Blood flowing into ventricles from atria?
Semilunar valves open or closed?
Blood flowing past semilunar valves?
Blood flowing out of ventricles into aorta or pulmonary artery?
Closed
No
No
Open
Yes
Yes
What device is used to measure blood pressure?
Sphygmomanometer
What hormone increases blood pressure?
Noradrenaline
What hormone decreases blood pressure?
Acetylcholine
How do CO2 and O2 impact blood pressure?
High CO2 leads to increased BP
Low O2 leads to increased BP
Four factors that increase BP
Stress
Weight
Lack of exercise
Stimulants
A condition where cholesterol or plaque is deposited under the inner lining of arteries
Atherosclerosis
What is aspirin and what does it do?
It is a pain reliever medicine which lowers the risk of heart attack and stroke
What is the precursor to aspirin and where can it be found?
Salicin can be found in willow bark
T or F: Blood pressure begins with a heartbeat
True
T or F: BP helps blood flow to all parts of body
True
T or F: Only a relaxed and easygoing person can have normal BP
False
Why do your cheeks get red after exercising?
Blood vessels dilate so that blood can go to the surface and transfer heat to the outside air
How do your tissues receive oxygen?
RBC carries oxygen, which is diffused into the tissues via the capillaries
What is a beta-blocker?
Medication which lowers blood pressure by blocking the effects of epinephrine
Name three heart disease conditions:
Arrhythmia
Coronary Artery Disease
Heart Failure
