Physio Exam II Flashcards.txt
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How do you determine cardiac output?
CO= SV (Stroke volume) x HR (Heart Rate)
Name the locations that blood flows through starting at the Vena Cava
- Vena Cava
- Right Atrium
- Tricuspid Valve
- Right Ventricle
- Pulmonic Valve
- Pulmonary Artery
- Pulmonary Vein
- Left Atrium
- Bicuspid/Mitral Valve
- Left Ventricle
- Aortic Valve
- Arteries, arterioles, capillaries
- Venules, veins
Arteriole blood is responsible for what?
Venous blood is stressed or unstressed?
Define systolic pressure:
Maximum pressure from left ventricular contraction
Define diastolic pressure:
Pressure created by elastic recoil of the aorta (ventricle relaxation and blood filling)
(Difference btw. systolic and diastolic)
Systolic/Diastolic Canine avg. 133/76
Mean arteriole pressure:
Diastolic pressure + 1/3 pulse pressure
Artrial Natriuretic Peptide Hormone the gives up sodium to the urine in an effort to decrease blood pressure. Where sodium goes, water will follow which decreases blood volume= decrease in blood pressure. *ANP prevents blood volume overload in the right atrium
Systemic Circuit Components:
- Pressure circuit
- left heart, arteries, veins
- blood to body
Pulmonary Circuit Components:
- Volume circuit
- low pressure
- right heart, pulmonary arteries, capillaries, veins
- blood to lungs
the amount of blood leaving the ventricle with each heart beat
T/F Venous return directly affects cardiac output
What is preload?
End Diastolic Volume. The blood volume in the ventricle after diastole
What is End systolic volume?
The blood volume in the ventricle after a contraction
What is Afterload?
Heart pumping against a pressure in the aorta.
What would you like to do?
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