A&P 2 Lesson 1

has anti-A antibodies

A person with type B blood

chromosome 11

On which chromosome is there a mutation that leads to sickle cell anemia?

a. are also known as thrombocytes. b. are actually fragments of cells. c. play a role in preventing blood loss. d. can become sticky when exposed to connective tissue e. All of these choices are correct. answer: e

Platelets

nitric oxide

What gas is also carried by a beta-globin that may help regulate blood pressure?

von Willebrand factor

What protein forms a bridge between exposed vessel wall collagen and platelet surface receptors?

d. Platelets begin to stick to each other and form a plug.

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

each hemoglobin molecule

transports four oxygen molecules

increased erythropoietin levels

which of the following would lead to increased erythropoiesis?

thrombus

A blood clot attached to a blood vessel wall is called a(an)

Megakaryoblast

A deficiency of which of the following stem cells would result in a marked increase in the clotting time of blood?

an Rh-negative woman is carrying an Rh-positive fetus

Hemolytic disease of the newborn (HDN) occurs when

the lower oxygen concentration seen at higher altitudes

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

myeloblasts

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

Bilirubin

may build up in the circulation and cause jaundice

plasma, RBCs, WBCs

For a person whose hematocrit is 45%, in which choice below are the components of blood correctly ranked in order of decreasing percent volume?

erythrocytes and reticulocytes

Which of the following formed elements do not have chromosomes?

c. pernicious anemia - loss of blood from the body

Which of the following is mismatched?

globulin-transport and immunity

Which plasma protein is correctly matched to its function?

healing after clot formation involves:

a. clot retraction. b. repair of the damaged blood vessel by connective tissue cells. c. clot dissolution. d. serum being squeezed out of the clot. e. All of these choices are correct. answer: e

Iron

is needed to produce hemoglobin