Histology of Periphal Blood

Question 0

Average amount of blood in the human body

Answer 0

5 liters

Question 1

Average amount of blood needed for testing

Answer 1

3-5cc

Question 2

Contains growth factors and other proteins released from platelets during clot formation

Answer 2

Serum

Question 3

%erythrocyte concentration in the blood

Answer 3

Hematocrit

Question 4

Function of plasma proteins

Answer 4

Buffer

Question 5

Formed element whose function does not require it to leave vasculature

Answer 5

Erythrocytes

Question 6

Molecules responsible for erythrocyte biconcave shape

Answer 6

Spectrin, ankyrin

Question 7

Basophilia have an affinity for which dye

Answer 7

Methylene blue

Question 8

Significance of biconcave structure of erythrocytes

Answer 8

Increased surface area-to-volume ratio; aids with its function as an O2 carrier

Question 9

Younger RBCs containing remnants of nuclear material

Answer 9

Reticulocytes

Question 10

Small, nonnucleated membrane-bound cell fragments originating from megakaryocytes

Answer 10

Thrombocytes

Question 11

Types of granules present in leukocytes

Answer 11

Specific (for non-enzymatic antibacterial activity)

Azurophilic (comparable to lysosomes in function)

Question 12

Mixture of apoptotic neutrophils, bacteria, and semidigested material

Answer 12

Pus

Question 13

Formed elements which are complete cells

Answer 13

Leukocytes

Question 14

Source of energy for formed elements

Answer 14

Glycolysis

Question 15

Contents of basophilic granules

Answer 15

Heparin and histamine

Question 16

Phenomenon wherein tissues of different parts of the body release histamine and other substances, causing airways to tighten

Answer 16

Anaphylactic shock

Question 17

Smallest leukocytes

Answer 17

Lymphocytes

Question 18

T-cells which release signaling molecules to attract and activate B lymphocytes

Answer 18

Helper T cells

Question 19

T cells which secrete substances that kill virus-infected cells

Answer 19

Cytotoxic t cells

Question 20

T cells which reduce the autoimmune response, protecting self tissues

Answer 20

Supressor T-cells

Question 21

Lymphocytes responsible for producing immunoglobulins

Answer 21

B cells

Question 22

Antigen-presenting cells; precursor to various macrophages

Answer 22

Monocytes

Question 23

4 plasma proteins

Answer 23

Albumin, globulins, fibrinogen, complement proteins

Question 24

Function of plasma

Answer 24

Exert colloidal pressure

Question 25

Cells which release eosinophil chemotactic factors during allergic reactions

Answer 25

Basophils, mast cells