Chapter 21-22 Flashcards
General pathway that blood travels around the body
- heart receives unoxygenated blood from body
- heart pumps unoxygenated blood to lungs
- heart receives oxygenated blood from lungs
- heart pumps oxygenated blood to body
Four chambers of the heart
two atria and two ventricles
Where does the right atria receive and pump blood to?
receives blood from the body and pumps blood to the right ventricle
Where does the right ventricle receive and pump blood to?
receives blood from the right atria and pumps blood to the lungs
Where does the left atria receive and pump blood to?
receives blood from the lungs and pumps blood to left ventricle
Where does the left ventricle receive and pump blood to?
receives blood from the left atria and pumps blood to the rest of the body
What three components affect blood pressure?
- cardiac output
- peripheral resistance
- blood volume
How does cardiac output affect anti-hypertensives?
lower cardiac output = low blood pressure
How does peripheral resistance affect anti-hypertensives?
dilated vessels decrease pressure
How does blood volume affect anti-hypertensives?
less blood decreases blood pressure
How do diuretics work to lower blood pressure?
aim to reduce blood volume
How do beta blockers work to lower blood pressure?
reduce heart rate and dilate blood vessels
How do ACEIs work to lower blood pressure?
inhibit ACE to dilate blood vessels
How do ARBs work to lower blood pressure?
inhibit ACE to dilate blood vessels
How do calcium channel blockers work to lower blood pressure?
decrease blood pressure or heart rate depending on the type
How do alpha blockers work to lower blood pressure?
dilate vessels
How do vasodilators work to lower blood pressure?
dilate vessels
Ending of diuretics
-ide
Ending of beta blockers
-olol
Ending of ACEIs
-pril
Ending of ARBs
-sartan
Ending of calcium channel blockers
-ipine