Exam 27: Blood

Vitamin B₁₂ is also called the intrinsic factor.

The volume of plasma is equal to the whole blood minus the formed elements.

Considering only the blood antigens A, B, AB, and O, which blood type is considered the universal recipient? Explain the physiological basis of its being referred to as the universal recipient.

Which plasma protein plays an important role in blood clotting?

Match each blood cell life span with the corresponding blood cell type. -Lymphocyte

The platelet count in the average adult is 500,000/mm³.

Another term for plasma is interstitial fluid.

A person without A or B antigens on the red blood cells must have blood type O.

Because they are formed in lymphatic tissue, there are no lymphocytes in bone marrow.

Thrombocytes are involved with:

Match each substance involved in blood clot formation with its description or function. -The soluble protein that is acted on to form the insoluble protein that actually forms the clot

Conditions that result in decreased red blood cell numbers are called anemias.

Match each substance involved in blood clot formation with its description or function. -Protein that is acted on to become thrombin

The rate of protein synthesis in mature red blood cells is slightly higher than in most of the cells in the body.

Which plasma protein plays an important role in the immune system?

One of the functions of basophils is to protect the body from parasitic worms.

The heme portion of the hemoglobin molecule can carry oxygen to the cells and carbon dioxide away from the cells.

Match each term with its corresponding description. -Granulocytes that release heparin (to prevent clotting) and histamine (important in inflammatory response)

Under normal circumstances, there are no differences between the sexes in platelet count.

Maturation causes an increase in the size of red blood cells.