Cardiovascular System: Blood

Plasma Select one: a. is one of the formed elements. b. is the liquid matrix of the blood. c. transports waste products but not nutrients. d. accounts for less than half of the blood volume. e. is serum plus formed elements.

is the liquid matrix of the blood.

All of the following are potential locations for hematopoiesis in the embryo and fetus, except

the placenta.

An adult patient is brought into the emergency room of a local hospital. The EMTs report the patient lost about 300 cc (cubic centimeters or milliliters) of blood. Is this life-threatening? Select one: a. Yes; 300 cc represents about 1/3 of the blood's volume b. Yes; 300 cc represents about 1/6 of the body's total blood volume of 2 liters c. No; most adults have more than 7 liters of blood so a loss of 300 cc would not be life threatening d. No; most adults have 4-6 liters of blood so a loss of 300 cc would not be life threatening Feedback

No; most adults have 4-6 liters of blood so a loss of 300 cc would not be life threatening

a. proerythroblasts

Red blood cells will develop from Select one: a. proerythroblasts. b. monoblasts. c. myeloblasts. d. megakaryoblasts. e. lymphoblasts.

The smallest leukocytes are the _____ and the largest are the ______. Select one: a. basophils; neutrophils b. eosinophils; monocytes c. lymphocytes; neutrophils d. neutrophils; monocytes e. lymphocytes; monocytes

Select one: a. basophils; neutrophils b. eosinophils; monocytes c. lymphocytes; neutrophils d. neutrophils; monocytes e. lymphocytes; monocytes

When the antigens on erythrocytes bind with antibodies in the plasma, Select one: a. agglutination of erythrocytes occurs. b. hemolysis of leukocytes may occur. c. the antibodies dissolve. d. the blood group changes. e. coagulation occurs.

a. agglutination of erythrocytes occurs.

Iron Select one: a. is needed to produce hemoglobin. b. is a plasma coagulation factor. c. is the binding site for carbon dioxide on the hemoglobin molecule. d. prevents carbon monoxide from binding to hemoglobin. e. interferes with the normal function of hemoglobin.

a. is needed to produce hemoglobin.

The oxygenated form of hemoglobin is called Select one: a. oxyhemoglobin. b. deoxyhemoglobin. c. carboxyhemoglobin. d. carbaminohemoglobin. e. loaded hemoglobin.

a. oxyhemoglobin

Agglutinins are:

antibodies directed against blood cell antigenic markers.

Which of the following is mismatched? Select one: a. blood typing - determines ABO and Rh blood groups of a blood sample b. blood crossmatch - donor and recipient blood cells are mixed together c. complete blood count - includes RBC and WBC counts d. differential count - determines the percent of each kind of leukocyte in the blood e. hematocrit - percentage of total blood volume composed of RBCs

b. blood crossmatch - donor and recipient blood cells are mixed together

Plasma is ____ while formed elements are ____. Select one: a. a blood gas; blood clots b. the liquid portion of blood; the cells c. lacking in protein; regulators of blood osmolality d. the cellular portion of blood; acellular components e. mostly protein; the matrix

b. the liquid portion of blood; the cells

The nervous system and certain chemicals can cause the constriction of a blood vessel. This is known as Select one: a. platelet adhesion. b. vascular spasm. c. hemostasis. d. coagulation.

b. vascular spasm.

What vitamin is necessary to produce many clotting factors in the liver? Select one: a. vitamin C b. vitamin K c. vitamin D d. vitamin B3

b. vitamin K

Which of the following statements regarding leukocytes is TRUE? Select one: a. Leukocytes have no nucleus. b. Leukocytes play a role in oxygen transport. c. Leukocytes are the largest of the formed elements. d. Leukocytes are only fragments of cells. e. There is only one kind of leukocyte.

c. Leukocytes are the largest of the formed elements

Which of the following is NOT a form of hemoglobin found in the developing human? Select one: a. adult b. embryonic c. adolescent d. fetal

c. adolescent

Which of the following phrases is least likely to be used in describing erythrocytes? Select one: a. biconcave cells b. cells can change shape c. cytoplasm contains hemoglobin d. nucleus is centrally located e. main role is transporting blood gases

d. nucleus is centrally located

RhoGam injections are given to Select one: a. desensitize the fetus. b. activate fetal Rh antigens. c. protect the father. d. prevent sensitization of the mother. e. change the mother's blood type.

d. prevent sensitization of the mother.

Which of the following is (are) associated with decreased hematopoiesis? Select one: a. hemorrhage b. vitamin B12 deficiency c. iron deficiency anemia d. restricted blood flow to the kidney e. both vitamin B12 deficiency and iron deficiency anemia

e. both vitamin B12 deficiency and iron deficiency anemia

The condition characterized by overproduction of erythrocytes is called Select one: a. anemia. b. leukemia. c. hemophilia. d. thalassemia. e. erythrocytosis.

e. erythrocytosis.

Bilirubin Select one: a. is found in white blood cells. b. may be reused in erythropoiesis. c. is formed from the globin groups of hemoglobin. d. is made from bile. e. may build up in the circulation and cause jaundice.

e. may build up in the circulation and cause jaundice.