Chapter 19 Blood Flashcards Preview

Biology 224 Lecture > Chapter 19 Blood > Flashcards

Flashcards in Chapter 19 Blood Deck (25):
1

what is blood?

liquid connective tissue: blood cells (formed elements) + fluid matrix (plasma)

2

what is the means of nutrient delivery for body cells and a way of removing wastes?

by the blood

3

what is sticky and more dense than water?

blood (5x more viscous)

4

since blood is slightly basic/alkaline, what is the pH of it?

- pH: 7.35 - 7.45
- ave. pH: 7.4

5

blood accounts for how much of the body weight?

~8%

6

what is the average volume of blood in adult males and females?

- adult males (5-6L)
- adult females (4-5L)

7

what is the temperature of blood?

38 degrees Celsius (100.4 degrees Fahrenheit)

8

what is the study of blood called and the name of a specialist?

- Hematology
- Hematologist

9

what is Hematocrit?

- percent of blood volume that is RBCs (red blood count)
- males = 47%
- females = 42%

10

what is 55% of the whole blood and least dense component?

plasma (clear/yellowish)

11

what is the buffy coat in the capillary tube?

- leukocytes and platelets
-

12

what is the most dense component of the blood?

- erythrocytes
- 45% of whole blood (hematocrit)

13

what is the blood plasma composed of?

- water (92%)
- plasma proteins (7%) (albumins, globulins, fibrinogen)
- other solutes (1%) (electrolytes, nutrients, wastes)

14

what produces the majority of the plasma proteins?

the liver (about 90%)

15

what are the three major types of plasma proteins?

- albumin (~60%)
- globulins (~35%)
- fibrinogens (~4%)

16

what is the major contributors to the osmotic pressure of plasma?

albumin

17

what is important in the transport of fatty acids, thyroid hormones, some steroids hormones and other substances?

albumin

18

what produces albumin?

the liver

19

what are the three types of globulins?

- alpha
- beta
- gamma

20

what are the transport globulins?

- alpha
- beta

21

what bind small ions, hormones (steroids) and other compounds that might otherwise be lost at the kidneys or that have low solubility in water (such as cholesterol)?

transport globulins (alpha and beta globulins)

22

where are the transport globulins produced?

the liver

23

the antibodies called immunoglobulins are what?

gamma globulins

24

what does the immunoglobulins (gamma) do?

attack foreign proteins and pathogens

25

what produces the immunoglobulins (gamma globulins)?

the lymphocytes