A&P Quiz 2

Typically, an adult's body contains ________ of blood.

5 liters

Which of the following statements regarding leukocytes is TRUE?

Leukocytes are the largest of the formed elements

When a blood vessel is damaged, which of the following events occurs last?

Platelets begin to stick to each other and form a plug

Which of the following is NOT a consequence of sickle-cell anemia?

Sickle-shaped red blood cells are less likely to rupture.

Which events occur during the recycling of aged or damaged erythrocytes? (Order is not important.)

The heme group is converted into biliverdin, The iron ions in hemoglobin are removed, The iron ions are stored in the liver & Membrane proteins and globin proteins are broken down and reused

A person with an increased eosinophil count might be suffering from

a parasitic worm infection

Which of the following plasma proteins is most abundant?

albumin

When defective erythrocytes are broken down,

bilirubin is formed from the breakdown of hemoglobin

In adults, red blood cells are made in one place, spend most of their lifespan in another, and most are finally destroyed in yet another place. Which choice lists these locations in the correct chronological order?

bone marrow; blood vessels; spleen

What ion is necessary for the coagulation process?

calcium

Mature erythrocytes

contain hemoglobin in their cytoplasm

If a patient becomes dehydrated, the percentage of plasma in a centrifuged sample of his or her blood would likely

decrease

One of the functions of blood is to regulate fluid levels in the body. If too much fluid escapes from the bloodstream and enters the tissues, blood pressure will

decrease

As a platelet plug forms at an injury site, platelets become activated and their cytosol

degranulates as they release chemicals such as ADP and thromboxane A2.

Which of the following functions is associated with the blood?

delivery of oxygen to tissue cells

Fibrinolysis involves ________ of the fibrin framework, and it involves the protein ________.

destruction, plasmin

The condition characterized by overproduction of erythrocytes is called

erythrocytosis

The agglutinogens (or antigens) that determine the ABO and Rh blood types are

found on the surface of erythrocytes.

Hemocytoblast stem cells

give rise to all formed elements in the blood

The process of producing the formed elements of blood is called

hemopoiesis

The function of plasmin is to

hydrolyze fibrin.

Coumadin (Warfarin)

is a potent anticoagulant.

Erythropoietin

is a product of the kidney.

Old erythrocytes are phagocytized in the

liver and spleen

Neutrophils of the blood are derived from a population of stem cells called

myeloblasts

Which of the following is mismatched?

pernicious anemia - loss of blood from the body

Which of the following is a stage of hemostasis?

platelet formation

Which blood component is NOT correctly matched with its function?

platelets - phagocytize bacteria

During platelet plug formation,

platelets stick to the exposed collagen fibers of injured vessels.

Which of the following cell types is an immature red blood cell?

reticulocyte

When a person is transfused with the wrong blood type,

the erythrocytes agglutinate.

Mr. Smith moved from a low altitude to a high altitude and experienced an increase in RBCs. Which of the following caused this increase?

the lower oxygen concentration seen at higher altitudes

Each hemoglobin molecule

transports four oxygen molecules

Erythropoiesis does not require

vitamin K

Fibrinolysis is responsible for

clot dissolution