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 wastes

• all of these are functions of the cardiovascular system

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

• plasma

• thrombocytes

• erythrocytes

• leukocytes

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

• plasma

• erythrocytes

• leukocytes & thrombocytes

An erythrocyte is more commonly known as

• a white blood cell

• a platelet

• a red blood cell

• hemoglobin

Blood plasma is mostly made of

• water

• oxygen

• granules

• hemoglobin

The cell above is responsible for releasing histamines, which dilate blood vessels during an allergic attack. It is categorized as a(n) __________________ and is called a(n) ____________.

• granulocyte, lymphocyte

• granulocyte, basophil

• agranulocyte, monocyte

• agranulocyte, eosinophil

A single hemoglobin molecule can carry _____ oxygen molecules and each red blood cell can carry _________ hemoglobin proteins.

• 4, millions of

• millions of, 4

• 4, 100

• millions of, 100

Because oxygen is nonpolar,

• It must be absorbed by the lymphocytes.

• It must diffuse directly into the blood.

• It must be eliminated quickly.

• It must be carried by hemoglobin.

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

• white blood cells

• platelets

• red blood cells

• plasmas

Which of the following is NOT true of hematopoiesis?

• It occurs in the red bone marrow of adults.

• It begins with a monocyte.

• It is stimulated by epinephrine.

• It causes the differentiation of all types of blood cells.

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