Cardiovascular System Review

Which of the following is the function of the cardiovascular system?

• regulating body temperature and fluid volume

• preventing infection

• transporting hormones and waste

• all of these are functions of the cardiovascular system

All of the following are formed elements of the blood except:

• plasma

• erythrocytes

• thrombocytes

• leukocytes

Which of the following components of blood makes up the smallest percentage by volume?

• plasma

• erythrocytes

• leukocytes and thrombocytes

• all of these are equal

An erythrocyte is more commonly known as

• a white blood cell

• a red blood cell

• a platelet

• hemoglobin

Blood plasma is mostly made of

• water

• granules

• oxygen

• hemoglobin

A single hemoglobin molecule can carry____oxygen molecules and each red blood cell can carry_____hemoglobin proteins

• 4, millions

• 4, 100

• millions, 4

• millions, 100

The process of hemostasis is completed by which type of cell?

• white blood cells

• red blood cells

• platelets

• plasmas

Which of the following is NOT true of hematopoiesis?

• It occurs inthe red bone marrow of adults

• It begins with a monocyte

• It is stimulated by epinephrine

• It causes the differentiation of all types of blood.

The hormone that stimulates platelet formation is

• erythropoietin

• interleukin

• thrombopoietin

Which of the following is the first step of hemostasis?

• A fibrin mesh is formed

• The blood vessel contracts

• Platelets are activated