Ch. 18 - Blood

The temperature of blood is about ___ than measured body temperature.

1 C higher

How many oxygen molecules may bind to a single molecule of hemoglobin?

4

A person with erythrocytes that have a surface antigen A, but not surface antigen B, is said to have type __ blood.

A

Which events occur during the recycling of ages or damaged erythrocytes? A. The heme group is converted into bilirubin B. Bilirubin is placed in long-term storage in the liver C. The iron ions in hemoglobin are removed D. The iron ions are stored in the liver E. Th iron ions are stored in the small intestine F. Membrane proteins and globin proteins are broken down an reused G. The erythrocyte contents, excluding the globins, are excreted unchanged via the digestive tract

A, C, D, F

Which are the characteristic of type Rh negative blood? A. Always has Rh antibodies B. Only under certain conditions will Rh antibodies be present C. Always has Rh antigen D. Only under certain conditions will the Rh antigen be present

B

Which are characteristic of type A blood? A. Has anti-A antibodies B. Has anti-B antibodies C. Has surface antigen A on its erythrocytes D. Has surface antigen B on its erythrocytes E. Has neither surface antigen A nor B on its erythrocytes F. Will agglutinate with blood type B

B, C, F

Which are the least numerous of the leukocytes?

Basophil

Which type of leukocyte releases histamine?

Basophil

What is the attraction of leukocytes to a site of infection due to the presence of molecules released by damaged cells, dead cells, or invading pathogens?

Chemotaxis

Blood is correctly classified as a(n)

Connective tissue

What color is oxygen-poor blood?

Dark red

Platelets are roughly the same size as erythrocytes, and like erythrocytes, they eject their nucleus just before entering circulation. True False

False

The blood type of a person missing the surface antigen D is Rh-Positive. True False

False

The extrinsic pathway is a clotting system that is initiated by chemicals that come from outside the body. True False

False

How many globins (protein building blocks) are found in a single hemoglobin molecule?

Four

The Co2 molecules that bind to the hemoglobin molecule are attached to the ______ units.

Globin

Leukocytes are the ______ of the formed elements and leukocytes have ____

Largest, prominent nuclei

Which are the most numerous of the leukocytes?

Neutrophils

Which leukocytes are granulocytes? A. Neutrophils B. Eosinophils C. Lymphocytes D. Monocytes E. Basophils F. Erythrocytes

Neutrophils, Eosinophils, Basophils

Which clotting pathway involves more steps and takes more time?

The intrinsic pathway

During hemopoiesis, the lymphoid line forms lymphocytes only. True False

True

The smallest and most abundant plasma proteins are the

albumins

Which are the characteristics of a leukocyte? A. Smaller than erythrocytes B. Have a nucleus C. Have no hemoglobin D. More numerous than erythrocytes E. Depending on type, may or may not contain granules

b, c, e

The hemoglobin found in erythrocytes is able to chemically attach to

both oxygen and carbon dioxide

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

decrease

The main function of leukocytes is to

defend against pathogens

Movement of leukocytes between the endothelial blood vessel cells into the body tissues is called

diapedesis

The most numerous of the formed elements are the

erythrocytes

The clinical definition of the hematocrit refers to the percentage of

erythrocytes in the blood

The process of producing the formed elements of blood is called

hemopoiesis

Old erythrocytes are phagocytized in the

liver and spleen

In hemopoiesis, granulocytes such as neutrophils are from the ____ line

myeloid

The type of leukocyte that is very active during bacterial infection and tends to be the first onto the scene of an infection is a(n)

neutrophil

Prostacyclin is an eicosanoid that acts as a

platelet repellant

The first phase in hemostasis is

vascular spasm

Which is going to result in significant agglutination?

Donor is type AB, recipient is type B

The type of leukocyte that will migrate in the blood and take up residence in the tissues as a macrophage is a(n)

Monocyte