Class 6: Blood and Heart Flashcards Preview

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Flashcards in Class 6: Blood and Heart Deck (128)
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1

Cardiovascular system refers only to the

heart and blood vessels

2

Functions of the circulatory system

transport, protect, regulate

3

adults have.... of blood

4-6 L

4

blood is a liquid...

connective tissue consisting of cells and extracellular matrix

5

erthrocytes are

red blood cells

6

platelets are located...

in bone marrow

7

leukocytes are

white blood cells

8

two types of leukocytes

granulocytes, agranulocytes

9

what machine separates the components of blood?

hematocrit

10

plasma is the .... portion of blood

liquid

11

serum is identical to.... except for the absence of ...

plasma, fibrinogen

12

3 major categories of plasma proteins are

albumins, globulins, and fibinogen

13

plasma proteins are formed by the

liver

14

viscosity refers to the

resistance of a fluid to flow

15

osmolarity of blood refers to

the total molarity of those dissolved particles that cannot pass through the blood vessel wall

16

Hemopoietic tissues produce

blood cells

17

what tissue produces all seven formed elements?

red bone marrow

18

Red blood cells are shaped

like a disc with a thick rim

19

RBCs major function is

gas transport

20

33% of cytoplasm is...

hemoglobin

21

Hemoglobin binds.... to .... at it's center

O2 to ferrous ion (FE2+)

22

RBC count and Hemoglobin concentration indicate...

the amount of O2 that blood can carry

23

erythropoiesis (RBC production) needs which nutrients?

Iron, Vitamin B12, Vitamin C and Copper

24

kidney produces...., which stimulates....

erythropoletin, bone marrow

25

stimuli for increasing erythropoiesis include

low levels of O2, high altitude, increase in exercise, loss of lung tissue in emphysema

26

spleen is where red blood cells go to...

die

27

macrophages are specialized to

digest membrane bits and eat them up

28

liver removes the.... and secretes it into...

billirubin, bile

29

polycythemia is an...

excess of RBCs

30

Dangers of polycythemia are:

increased blood volume, pressure, and viscosity