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Flashcards in Hematology And Immunology Deck (16):
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What does the blood contain?

Blood cells, blood cell fragments, water, other substances (proteins, clotting factors, etc.)
Cells that also function as part of the immune system.

1

What does the blood transport?

Oxygen, carbon dioxide, nutrients, and waste products.

2

What does the lymphatic system contain?

Lymphatic vessels, fluid, nodes, tissues, and organs.

3

What does the lymphatic system form?

A pathway throughout the body that is separate from that of the cardiovascular system that contains blood.

4

What is the lymphatic system's function?

Defends against the micro organisms and cancerous cells.

5

What does the plasma contain?

Contains substances the body produces itself: albumin, bilirubin, hormones, complement proteins, and clotting factors.
Waste products of cellular metabolism: creatinine and urea

6

What is plasma?

Clear, straw-colored liquid (90% water) that makes up 55% of blood.
The formed elements of blood (erythrocytes, leukocytes, and platelets) are suspended in plasma.

7

Erythrocytes

Most numerous of the formed elements in the plasma.
Red blood cell that is a flattened, round red disk.
They have no cell nucleus when they are mature.

8

Erythrocytes (hemoglobin)

A red, iron-containing molecule that binds to oxygen molecules to form oxyhemoglobin.
Carries oxygen from the lungs to every cell in the body, and carries carbon dioxide from the cells back to the lungs.

9

Hematopoiesis

The process by which all blood cells are formed, occurs in the red marrow of long or flat bones.

10

Erythrocytes (stem cells)

Immature cells.
Mature to become erythroblasts and then normoblasts.

11

Erythrocytes

No nucleus; can't divide or repair themselves.
Last 120 days before they deteriorate.

12

Erythrocytes (macrophages)

Specialized cells that break down erythrocytes' hemoglobin into heme and globins.

13

Erythrocytes (bilirubin)

Iron stripped from heme molecules is stored in the liver and their spleen; the remainder of heme molecules is converted into bilirubin.

Plays an important role as an antioxidant, protecting body cells from damage by free radicals.

14

Leukocytes

White blood cells that contain five types of cells (neutrophils, eosinophils, basophils, lymphocytes, monocytes)

Can be identified by the presence or absence of granules in their cytoplasm and the shape of their nucleus.

15

Leukocytes (size of granules)

Large granules in their cytoplasm are categorized as granulocytes, which include neutrophils, eosinophils, and basophils.

Few or no granules in cytoplasm are categorized as agranulocytes, which include lymphocytes and monocytes.