Cardiovascular System

Question 1

Diastole is the term that describes _________, while systole represents_____________.

Answer 1

relaxing and filling; contraction and ejection

Question 2

The primary function of the ________________ is to deliver blood to the brain.

Answer 2

carotid artery

Question 3

Which blood vessel delivers blood directly into the right atrium?

Answer 3

Vena cava.

Question 4

Which of the following conditions occurs when a blood vessel in the brain becomes blocked?

Answer 4

Stroke.

Question 5

One of the primary functions of blood is to deliver oxygen-rich blood to the body’s tissues. This is accomplished by ________________, which contain the oxygen-carrying protein called __________________.

Answer 5

erythrocytes; hemoglobin

Question 6

Which of the following comparisons between arteries and veins is true?

Answer 6

Veins have valves, and arteries do not.

Question 7

A decrease in the amount of hemoglobin in the blood would result in __________________.

Answer 7

decreased oxygen-carrying capacity

Question 8

Which of the following correctly describes the flow of blood through the heart’s primary chambers?

Answer 8

Right atrium, right ventricle, left atrium, and left ventricle.

Question 9

Which of the following lists the heart’s primary valves in the order in which blood passes through them?

Answer 9

Tricuspid, pulmonary semilunar valve, bicuspid, aortic semilunar valve.

Question 10

The condition ________________ can often lead to ________________ due to buildup and blockage of coronary arteries, preventing blood flow to the myocardium.

Answer 10

atherosclerosis; myocardial infarction

Question 11

Blood pressure is recorded as two numbers, for example 110/70. The top number (110) represents ___________ blood pressure which is ____________.

Answer 11

Systole; the pressure in the blood vessels while the heart is ejecting blood.

Question 12

In order for the heart to contract, an action potential must be generated at the sinoatrial node. If this signal fails to reach the Purkinje fibers, what will be the result?

Answer 12

The Purkinje fibers will act as pacemaker cells but fire at a slower rate.

Question 13

Which of the following lists the blood vessels in the order of blood flow from the left ventricle back to the heart at the right atrium?

Answer 13

Aorta, arteries, arterioles, capillaries, venules, veins, vena cava.

Question 14

The _________________ is the blood vessel that carries oxygen depleted blood away from the heart.

Answer 14

Pulmonary artery

Question 15

Which of the following is not true about the lymphatic system?

Answer 15

The lymphatic system transports both white blood cells and red blood cells.

Question 16

__________ is a condition in which red blood cells are poorly functioning and have reduced ability to carry oxygen.

Answer 16

Anemia

Question 17

Which of the following arteries has the primary responsibility of supplying blood to the reproductive system?

Answer 17

Gonadal artery.

Question 18

In order for blood to be delivered to the body (i.e. the systemic circuit), enough pressure must be developed by the ________ to push open the _______.

Answer 18

left ventricle; aortic semilunar valve

Question 19

Which of the following describes what would happen during a period of hyperventilation?

Answer 19

Decreased carbon dioxide levels result in an increase in pH.

Question 20

Which of the following is not typically a result of an embolus?

Answer 20

Atherosclerosis.