Nephrons are the filtering units found in the

A patient comes to the hospital with severe cramping.  A routine blood test determines that he has an elevated potassium level.  This elevated potassium level may have which effects on cardiac output?

Baroreceptor releaxes may be triggered by receptors found in the wall of which of the following blood vessels?

Which organ detects hypoxia and releases a hormone that stimulates the red bone marrow to produce red blood cells?

To assist with venous return, muscles of the lower extremity contract which pushes blood proximally up through valves into large veins near the heart.  This mechanism is called the:  

During which phase of the cardiac cycle does the tricuspid valve open?

Hemostasis is the stoppage of bleeding when a blood vessel is injured.  What is the correct order of methods that occur in hemostasis?

Which layer of the heart wall is the thickest?

Which type of blood would a person have if they have: A antigens on their RBCs anti-B-antibodies in their plasma Rh antigens on their RBC no Rh antibodies in their plasma    

At a normal resting heart rate, most of the total volume of blood in the body is located in which of the following areas?