Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
The Hearts Valves |
Right Atrium (RA) Left Atrium (LA) Right Ventricle (RV) Light Ventricle (LV) |
|
|
Remember---> Blood Flow Veins and Arteries... |
Arteries Away from heart (whether its going to the lungs or the rest of the body)
Veins To (Ventricles) heart (whether it be from the lungs or the upper/lower body) |
|
|
Quick Pulmonary Cardiac Cycle Blood Flow Break Down... |
Deoxygenated blood from Upper Body enters RA from the Superior Vena Cava. Deoxygenated blood from the Lower Body enters the RA from the Inferior Vena Cava.
Contraction of RA forces Deoxygenated blood into the RV entering through the Tricuspid Valve.
Contraction of the RV forces deoxygenated blood to leave the RV through the Pulmonary Valve into the Pulmonary Artery. Blood going to LUNGS (blood vessels of lungs) for re-oxygenation. *Lung circulation*
Oxygenated (rid of C02) blood leaves Lungs through Pulmonary Veins and travels back to the hearts ventricles.
Oxygenated blood enters the LA.
LA contracts forcing oxygenated blood through the Mitral Valve into LV .
LV contracts forcing oxygenated blood through the Aortic valve into the Aorta (an Artery), where it is dispersed through the entire body (besides lungs). |
|
|
Remember---> |
Valves Open to allow blood to flow through and close to keep blood from back-flowing.
Ventricles/Aorta Contract ("push" blood) and Dilate ("relax")
-When Ventricles are contracting (Atria Dilated) this is High pressure. -When the Ventricles Dilated (Atria Contracted) this is a low pressure. -Hence, Blood pressure. Systolic High pressure point, Diastolic Low pressure point of ventricles.
Personally: I just remember Ventricles & BP. If Ventricles contracts arteries experience more pressure this is Systolic (aorta's are the opposite-dilated). When Ventricles are Dilated this is the low pressure on the arteries walls, which is your Diastolic pressure (again, aorta's are doing opposite-Contracting). Blood leaves the heart through the (LV) Left Ventricle to go to the BODY. |
|
|
Atria vs Atrium |
Atria (plural)
Atrium (singular) |
