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*What does Starlings law state?
When the rate at which blood returns to the heart changes, the heart will adjust its output to match the change in inflow
(ie as more blood is returned to the heart, the amount of blood pumped to the body per contraction per ventricle (stoke V) increases)
** What is poiseuilles equation?
What are the layers of the heart and its wall?
1. Fibrous pericordium (attaches to diaphragm and vessels of the heart)
-pericardian cavity (filled with serous fluid)-
2. Serous pericordium (double membrane
: outer parietal, inner visceral)
What are the three wall layers?
1. Epicarolium- outer layer
2. Myolardium- muscle layer
3. Enolocardium- inner layer
What are the four chambers of the heart?
R atrium, L atrium, R ventricle, L ventricle (bigger thicker walls)
What is polycythimia versa?
more than normal production of red blood cells
What are the hearts four valves?
2 atrio ventricular valves (AV)
: pulmonary semilunar, right tricuspid and left tricuspid
2 semilunar valves
: aortic (semilunar valve)
What are the processes of electricity conduction in the heart?
1. SA (simoatril)
2. AV (ventricular)
3. Purkimjy fibers Left and Right
4. Papillary muscle
Lab 2 study