Cardiovascular System

Which of the following is NOT a function of the cardiovascular system?

• Transport of oxygen and carbon dioxide.

• Production of hormones.

• Regulation of body temperature.

• Elimination of metabolic wastes.

What is the main function of the sinoatrial node in the heart?

• To regulate blood pressure.

• To transport oxygen to the myocardial cells.

• To act as the heart's natural pacemaker.

• Pumping blood through the coronary arteries.

Which of the following is an effective strategy to reduce LDL (“bad”) cholesterol?

• Increasing fiber intake, such as oatmeal and legumes.

• Consuming more trans fats and saturated fats.

• Avoiding physical exercise to reduce energy expenditure.

• Increasing sugar intake to improve circulation.

Write the forme component of blood involved in oxygen transport (type in lower case).

Does the cardiovascular system maintain acid-base balance?

• True

• False

Are blood vessels just a blood conduction tube?

• True

• False

What is the name given to the set of alternating periods of contraction and relaxation performed by the heart to ensure the pumping of blood?

Which of the following statements about the coronary circulation is correct?

• The coronary arteries originate in the pulmonary artery.

• The right coronary artery mainly irrigates the right atrium and ventricle.

• The circumflex artery is a branch of the right coronary artery.

• The coronary veins drain directly into the right atrium.

Which valve is located between the right ventricle and the pulmonary artery?

• Tricuspid

• Tricuspid

• Pulmonary

• Mitral

What component of the cardiac conduction system allows depolarization of the lateral walls of the ventricles?

• Sinoatrial (SA) node

• Purkinje fibers

• Atrioventricular (AV) node

• His bundle