Exam 29: Structure and Function of the Cardiovascular and Lymphatic Systems

The correct sequence of events that occur after the baroreceptor reflex is stimulated is that the impulse is transmitted from the carotid artery to the:

Reflex control of total cardiac output and total peripheral resistance is controlled by:

The major determinant of the resistance that blood encounters as it flows through the systemic circulation is the:

Which cardiac chamber has the thinnest wall and why?

Which phase of the normal myocardial cell depolarization and repolarization correlates with diastole?

Which natriuretic peptide complements nitric oxide (NO) to mediate vasodilation?

Where are the receptors for neurotransmitters located in the heart?

Oxygenated blood flows through the:

If the sinoatrial (SA) node fails, at what rate can the atrioventricular (AV) node polarize?

Occlusion of the left anterior descending artery during a myocardial infarction would interrupt blood supply to the:

Pressure in the left ventricle must exceed pressure in the _____ before the left ventricle can eject blood.

The Bainbridge reflex is thought to be initiated by sensory neurons in the:

Which of the following events occurs during phase 1 of the normal myocardial cell depolarization and repolarization?

The resting heart in a healthy person is primarily under the control of the _____ nervous system.

The ratio of coronary capillaries to cardiac muscle cells is:

Although both produce vasoconstriction, the effects of norepinephrine are quantitatively more vasoconstrictive than the effects of epinephrine.

The mitral and tricuspid valves close after the ventricles are filled with blood because the:

Within a physiologic range, an increase in left ventricular end-diastolic volume (preload) leads to a(n):

During the cardiac cycle, the aortic and pulmonic valves close after the ventricles contract because the:

The right lymphatic duct drains into the: