Cardiac physiology

Question 1

Which law does each belong to;
1) The tension on the wall of a sphere is the product of the pressure times the radius of the chamber and the tension is inversely related to the thickness of the wall
2) The stroke volume of the left ventricle will increase as the left ventricular volume increases due to the myocyte stretch causing a more forceful systolic contraction
3) The pressure of an incompressible and Newtonian fluid in laminar flow through a long cylindrical pipe will drop as the cross section increases
4) Wall tension is directly proportional to pressure

Answer 1

1) Laplace
2) frank-starling
3) Poisuille
4) Laplace

Question 1

Which of the following describes the frank starling relationship?
1) The tension on the wall of a sphere is the product of the pressure times the radius of the chamber and the tension is inversely related to the thickness of the wall
2) The stroke volume of the left ventricle will increase as the left ventricular volume increases due to the myocyte stretch causing a more forceful systolic contraction
3) The pressure of an incompressible and Newtonian fluid in laminar flow through a long cylindrical pipe will drop as the cross section increases
4) Wall tension is directly proportional to pressure

Answer 1

it is 2