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Blood transports many substances. List six.

Oxygen
Carbon dioxide
Nutrients
Wastes
Heat
Hormones

1

Your blood regulates three aspects of homeostasis. List those three.

Body temp
pH
Water content of cells

2

Explain two ways in which your blood protects you.

1. Prevents blood loss through clotting response to injury
2. Combats microbes and toxins through the action of white blood cells or specialized plasma proteins

3

Average temperature of blood:

38°C (98.6°F)

4

pH of blood:

7.35-7.45

5

Volume of blood in the average adult:

4-6 liters

6

Blood consists of about ____ percent plasma and ____ percent formed elements, which include ______ and _________

55%
45%
Cells
Cellfragments

7

The three types of formed elements (or cells) are:

RBC's
WBC's
Platelets

8

The top layer of configured blood.

Plasma

9

The layer of centrifuges blood with the greatest volume.

Plasma

10

The layer of centrifuges blood with the least volume

White blood cells and platelets

11

The layer forming the buffy coat

White blood cells and platelets

12

The bottom layer of centrifuged blood

Red blood cells

13

Makes up 92% of plasma

Water

14

A protein made by the liver for blood clotting

Fibrinogen

15

Protein needs to maintain blood viscosity and pressure

Albumins

16

Protein needed to produce antibodies

Globulins

17

Blood formation is a process known as ______. All blood cell arise from hemopoietic _______ cells.

Pluripotent stem

18

After birth, most blood cell formation takes place in the red bone marrow. List three bones where this process takes place after birth.

Femur stern pelvis

19

A mature erythrocyte (does, does not) captain a nucleus.

Does not

20

The pigment named _____ accounts for the colors of RBC's. It also is responsible for transporting almost all _____ in the blood.

Hemoglobin
Oxygen

21

RBC's are normally shaped like ______ discs which gives them more flexibility and ______ area.

Biconcave
Surface

22

The average life of red blood cell is about 4 (hours, days, months, years)

Months

23

In adults, the RBC's count per UL is (500, 5,000, 250,000, 5 million, 250 million)

5 million

24

Not truly cells, but fragments of cells

Platelets

25

Also known as thrombocytes

Platelets

26

Include two subcategories: granular and agranular

Leukocytes

27

Also kown as white blood cells

Leukocytes

28

Also known as red blood cells

Erythrocytes

29

Leukocytes (have, lack) hemoglobin, so these cells are known as (RBC's, WBC's).

Lack, WBC's