Histology Connective Tissue I

Question 1

specialized connective tissue

Answer 1

blood, cartilage, and bone

Question 2

granulocytes

Answer 2

neutrophils, eosinophils, and basophils

Question 3

agranulocytes

Answer 3

monocytes and lymphocytes

Question 4

two categories of leukocytes

Answer 4

WHITE BLOOD CELLS agranulocytes and granulocytes

Question 5

blood precentages

Answer 5

~ 40% RBC, 1% WBC, 59% plasma

Question 6

erythrocytes

Answer 6

diameter 7 micrometers life span 120 days

Question 7

neutrophils

Answer 7

Diameter: 12 micrometers Frequency: 60-70% WBC Azurophilic granules: many Specific granules: small Life Span: 1 week

Question 8

eosinophils

Answer 8

Diameter: 12 micrometers Frequency: 2-4% WBC Azurophilic granules: few Specific granules: large (red) Life Span: few hours in blood and 2 weeks in connective tissue

Question 9

basophils

Answer 9

Diameter: 10 micrometers Frequency: 0.5-1% Azurophilic granules: few Specific granules: large (blue) Life Span: months

Question 10

lymphocytes

Answer 10

Diameter: 10 micrometers Frequency: 20-25% WBC Azurophilic granules: few Specific granules: none Life Span: B-cells- few months and T-cells several years

Question 11

monocytes

Answer 11

Diameter: 15 micrometers Frequency: 3-8% WBC Azurophilic granules: many Specific granules: none Life Span: 3 days

Question 12

platelets

Answer 12

3 micrometers

Question 13

erythropoiesis

Answer 13

formation of red blood cell 5 steps 1. proerythroblast 2. basophilic erythroblast 3. polychomatophilic erythroblast 4. orthochomatophilic erythroblast 5. reticulocyte

Question 14

granulopoiesis

Answer 14

formation of granulocytes 1. promyelocyte 2. neutrophilic myelocyte 3. neutrophilic metamyelocyte 4. neutrophilic stab (band) cell

Question 15

Answer 15

lymphocytes

Question 16

Answer 16

neutrophil

Question 17

Answer 17

eosinophil

Question 18

Answer 18

basophils

Question 19

Answer 19

monocyte

Question 20

Answer 20

monocyte

Question 21

Answer 21

platlets

Question 22

Answer 22

lymphocyte

Question 23

Answer 23

neutrophil

Question 24

Answer 24

basophil

Question 25

Answer 25

monocyte

Question 26

Answer 26

eosinophil

Question 27

What is the function of this cell?

A. Phagocytoses, kills, and digests bacteria

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B. Defends against helminthic infections

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C. Mediates an allergic reaction

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D. Generates humoral immune response

Answer 27

A. Phagocytoses, kills, and digests bacteria

Neutrophils are 12 μm in diameter in a blood smear, so they are almost twice the size of a red blood cell. They represent about 60-70% of all white blood cells.

Azurophilic granules are lysosomes (very small) containing various hydrolytic enzymes. “Specific granules” (which make a granulocyte a granulocyte) are very small and hard to see in the neutrophil, but they are present; these specific granules contain various enzymes and other molecules in the neutrophil.

Question 28

This cell represents __ % of all leukocytes.

A. 0.5 – 1

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B. 2 – 4

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C. 3 – 8

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D. 20 – 25

Answer 28

D. 20 – 25

Lymphocytes are 10 μm in diameter in a blood smear. They represent about 20-25% of all white blood cells.

These cells are agranulocytes, so they contain no “specific granules.” They do, however, contain some azurophilic granules, which are lysosomes (very small) containing various hydrolytic enzymes.

Question 29

This cell becomes a ___ in connective tissue.

A. Plasma cell

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B. Macrophage

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C. Mast cell

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D. Platelet

Answer 29

Monocytes (the cell in the image) are 15 μm in diameter in a blood smear, so they are more than twice the size of a red blood cell. They represent about 3-8% of all white blood cells. Monocytes become macrophages in connective tissue.

These cells are agranulocytes, so they contain no “specific granules.” They do, however, contain many azurophilic granules, which are lysosomes (very small) containing various hydrolytic enzymes.