lecture 13

Question 1

Three general functions of blood?

Answer 1

Transport
immune response
coagulation

Question 2

What are good things blood transports?

Answer 2

O2
Water
Nutrients
Ions

Question 3

What are bad things blood transports?

Answer 3

CO2

waste products

Question 4

What is a byproduct of oxidative reactions in cells?

Answer 4

Heat

Question 5

What in blood is largely responsible for the immune response?

Answer 5

White blood cells

Question 6

What is the purpose of coagulation?

Answer 6

Preventing bleeding

Question 7

What is responsible for coagulation?

Answer 7

Platelets and coagulation factors

Question 8

How much blood does a 70kg person have?

Answer 8

5.5L of blood

Question 9

What percentage of the blood is plasma?

Answer 9

55%

Question 10

what is the range of plasma in the blood?

Answer 10

46-63%

Question 11

What percentage of plasma is water?

Answer 11

92%

Question 12

What are plasma proteins?

Answer 12

Albumins
globulins
fibrinogen
enzymes and hormones

Question 13

What are the purposes of electrolytes?

Answer 13

Maintain pH and ion balance

Question 14

What are the three types of formed elements?

Answer 14

Platalets
White blood cells
Red blood cells

Question 15

What is the most common formed element?

Answer 15

Red blood cells (99.9%)

Question 16

What are platelets?

Answer 16

cell fragments that participate in clotting to stop bleeding

Question 17

What do white blood cells do?

Answer 17

immune response and defence mechanisms

Question 18

what is the purpose of red blood cells?

Answer 18

oxygen transport, highly specialised

Question 19

What is hematopoiesis?

Answer 19

the formation of blood cells

Question 20

Where are red blood cells made?

Answer 20

Red bone marrow

Question 21

What makes red blood cells?

Answer 21

hemocytoblasts

Question 22

What are the progenitors for all blood cells?

Answer 22

Hemocytoblasts

Question 23

What stimulates production of red blood cells?

Answer 23

Erythropoietin (EPO)

Question 24

Name two organs that will receive less blood during strenuous exercise?

Answer 24

Kidneys

GI Tract

Question 25

Since the total flow of blood has increased during exercise, what value must change to keep mean arterial blood pressure constant?

Answer 25

TPR, total peripheral resistance

Question 26

What is the shape of red blood cells?

Answer 26

Biconcave disc shape

Question 27

What is the purpose of the red blood cell shape?

Answer 27

efficient diffusion of gases large surface area:volume ratio flexibility for movement with narrow capillaries

Question 28

What is 1/3 weight of Red Blood Cells?

Answer 28

Hemoglobin

Question 29

What does haemoglobin use to bind oxygen?

Answer 29

Iron

Question 30

What is hematocrit or packed cell volume?

Answer 30

The fraction of blood occupied by the red cells

Question 31

What is the normal PCV for males?

Answer 31

0.4-0.54

Question 32

What is the normal PCV for women?

Answer 32

0.37-0.47

Question 33

What is the Buffy coat?

Answer 33

White blood cells and platelets

Question 34

What is anemic?

Answer 34

Abnormally low hematocrit

Question 35

What is polycythemic?

Answer 35

abnormally high hematocrit

Question 36

What is the short term response to high altitude?

Answer 36

increased respiratory rate and increased HR

Question 37

What detects the change in oxygen levels?

Answer 37

Kidney

Question 38

What is a long term response to high altitude?

Answer 38

Increased RBC production

Question 39

What is the purpose of increased O2 capacity?

Answer 39

Increased performance

Question 40

what is aqueous component of blood?

Answer 40

Plasma

Question 41

What is the main cause of anemic?

Answer 41

Iron deficiency

Question 42

Why is polycythemic bad?

Answer 42

Blood is too thick, therefore difficult to push through system due to greater resistance