A&P blood review

All leukocytes ...

-are found in the buffy coat of the hematocrit tube -are capable of diapedesis -may be found in loose connective tissue

Basophils

-least numerous of circulating leukocytes -specific granules contain heparin & histamine

4 types of leukocytes

-lymphocytes -monocytes -eosinophils -neutrophils

what is fibrinolysis ?

-the enzymatic breakdown of the fibrin in blood clots -prevents blood clots from growing and becoming problematic

Neutrophils

-the first line of cellular defense against a bacterial infection -most numerous circulating leukocytes

Plasma is:

-the liquid portion of blood containing clotting factors -has proteins -92% water -no RBC's 52%

together leukocytes and platelets comprise approximately ___ percent of total blood volume

1%

What is the approximate diameter of a RBC

7-8 um

The component of plasma responsible for maintaining the osmotic pressure of blood is:

Albumin

The term that refers to the percentage of packed erythrocytes per unit volume of blood is the..

Hematocrit

An increased neutrophil count is typically associated with

an ongoing bacterial infection

An individual with type B+ blood has which antibodies in their blood?

anti-A

what blood cells have some properties similar to connective tissue mast cells?

basophils

During hemoglobin recycling in the spleen, heme is initially converted into:

bilirubin

What is coagulation?

blood clotting

Erythrocytes (RBC) a. Enter the circulation only after becoming fully mature b. Undergo mitosis in the circulation in response to erythropoietin c. Are removed from the circulation after about 120 days by macrophages in the spleen, liver, and bone marrow d. Have mitochondria, and are capable of oxidative respiration e. None of the above

c. Are removed from the circulation after about 120 days by macrophages in the spleen, liver, and bone marrow

Which of the following is a circulating blood cell that is capable of differentiating into a plasma cell? a. Neutrophil b. Basophil c. B lymphocyte d. T lymphocyte e. Monocyte

c. B Lymphocyte

The Fe3+ portion of the hemoglobin is eventually a. Converted into transferrin in the large intestine b. Converted into ferritin in the kidney c. Excreted from the body d. All of the above e. None of the above

e. None of the above

Hypoxia induces the kidneys to produce:

erythropoietin

Which of the following activates platelets during hemostasis?

exposed collagen of endothelial basement membrane

Which of the following is not a phase of hemostasis?

fibrinolysis

Excessive destruction of erythrocytes is characteristic of:

hemolytic anemia

Which of the following might trigger erythropoiesis?

increased tissue demand for oxygen

The phase of coagulation that begins with exposed endothelial collagen is the:

intrinsic pathway

____ eventually become macrophages

monocytes

A hematocrit of 80 would be considered:

polycythemia

What is erythropoiesis?

production of red blood cells

An individual who is blood type AB negative can ________.

receive any blood type in moderate amounts except that with the Rh antigen

Which of the following is characteristic of all leukocytes?

they are nucleated

The first phase in hemostasis is

vascular spasm