Mrs. Rees is brought to the emergency room after being involved in an auto accident. She is hemorrhaging and has a rapid pulse that can barely be felt, but her blood pressure is still within normal limits. Describe the compensatory mechanisms that are maintaining her blood pressure in the face of blood loss.

The carotid sinus contains:

a. baroreceptors.

b. chemoreceptors.

c. metabolic controls.

d. smooth muscle cells.

Which of the following would produce a decrease in blood pressure?

a. Increased cardiac output

b. Vasodilation

c. Vasoconstriction

d. Increased blood volume

Fill in the blanks: The two pressures within the systemic arterial circuit are the_____pressure and t_____pressure. The difference between these two pressures is the_____ pressure.