AHII - Ch 12 Cardiovascular System

Plasma is a yellowish fluid.

• True

• False

Both atria fill at the same time and both ventricles fill at the same time.

• True

• False

Systole is the phase when the heart contracts

• True

• False

All arteries carry oxygenated blood.

• True

• False

Atherosclerosis is caused by plaque

• True

• False

The sinoatrial node(SA node) sets the heart rate by sending its impulse to the atrioventricular node for distribution.(AV node)

• True

• False

Arteries have thinner walls than veins.

• True

• False

The innermost layer of a blood vessel is the tunica interna.

• True

• False

In healthy people, caffeine, nicotine, or stress can cause ________.

• erythrocytisis

• anemia

• a heart block

• a premature contraction

________ is an inherited condition in which red blood cells and hemoglobin molecules do not form properly.

• Sickle cell anemia

• Leukemia

• Leukocytosis

• Anemia