Chapter 19: Blood Flashcards Preview

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Flashcards in Chapter 19: Blood Deck (90)
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1

What is blood?

It is fluid connective tissue

2

2 components of fluid connective tissue

1. cells
2. plasma (matrix or ground substance)

3

5 functions of blood

1. Transportation
2. Regulates pH and ion composition
3. Prevents blood loss
4. Defense against toxins and pathogens
5. Stabilizes body temp

4

What does blood transport?
-4 things

1. Gases
2. Nutrients
3. Hormones
4. Waste products

5

What does regulating pH and ion composition help to maintain?
-Neutralize?

-Maintains K+ or Ca++ in tissues
-neutralizes lactic acid generated by muscle tissue

6

How does blood prevent blood loss?

By clotting

7

What in blood is known as defense?
-2 things

1. White blood cells
2. antibody

8

How does blood stabilize body temp?

Absorbs heat generated by muscle tissue and redistributes it

9

Sample of whole blood consists of 2 things

1. plasma
2. formed elements

10

what 3 things does formed elements consist of

1. RBC
2. WBC
3. Platelets

11

Red blood cells are known as?
-White blood cells are known as?

1. erythrocytes
2. leukocytes

12

pH level in blood
-average
-range

-7.4
-7.35-7.45

13

Blood temp
-celcius
-Fahrenheit

-38C
-100.4F

14

Viscocity of blood
-meaning
-how much

-thickness
-5x as viscous as water

15

Salt concentration of blood

0.9% sodium chloride

16

Percent of body weight

7%

17

Volume of blood
-female
-male

-4-5 L
-5-6 L

18

Centrifugation of blood allows

separation of plasma and formed elements

19

How is blood collected

by venipuncture

20

Buffy coat
-definition
-what does it contain

-small semi clear layer directly above packed RBCs
-WBCs and platelets

21

Hematocrit
-definition
-formula

-% of formed element in a volume of whole blood
-volume of packed RBCs/volume of whole blood x 100

22

Hematocrit in
-males
-females
-changes

-46 (range 40-54) because of testosterone
-42 (range 37-47)
-Dehydration, internal bleeding, problems with RBC formation

23

Composition of plasma

1. water (92%)
2. plasma proteins (7%)
3. other solutes (1%)

24

Plasma proteins
-how much percent are made and secreted by the liver
-4 proteins

-90%
1. albumins
2. globulins
3. fibrinogen
4. regulatory proteins

25

Albumins
-percent
-abundance?
-function

-60%
-most abundant
-transports fatty acid, thyroid hormones, some steroid hormones and other substances

26

globulins
-percent
-what are they?
-function

-35%
-antibodies-immunoglobulins
-transport globulins - bind small ions, hormones and compounds

27

fibrinogen
-percent
-important for
-converted to
-what does it form

-4%
-blood clotting
-converted to fibrin
-forms long strands for blood clotting

28

Regulatory proteins
-percent
-includes 2 things

-

29

3 Glycoproteins

1. TSH
2. FSH
3. LH

30

Other solutes
-percent
-3 things

-1%
1. Electrolytes
2. Organic nutrients
3. organic wastes