The thoroughfare channel is formed as a result of:

Oxygen (O2) binds to __________________________ in the hemoglobin; _______________________competes with oxygen for binding to hemoglobin.

Which vessels play a key role in regulating blood flow into capillaries?

Match the labeled with letters structures on the figure (found in the left column) with their anatomical name using the drop-down arrow next to the right column.

As arteries stiffen with age and atherosclerosis develops, how would you explain the the physiological consequences of this process?

The umbilical vein carries deoxygenated blood to the fetal heart.  

Cardiac reserve is the following:

The start of ventricular contraction coincides with___________:

Reduction in the concentration of albumin in blood plasma would alter capillary exchange by ________.  

Tissue Plasminogen Activator (TPA) helps activate plasminogen and is important to_______________: