Blood and Immune Lecture 16

Question 1

Blood

Answer 1

• Connective tissue composed of red blood cells, white blood cells, platelets and plasma
• Defence against infections
• transport of oxygen and nutrients

Question 2

How many litres of blood circulates through the heart each day

Answer 2

14000L/day

Question 3

How many litres of blood are there in the adult body

Answer 3

5L

Question 4

Circulation time and mL per beat

Answer 4

1 minute and 70mL

Question 5

Functions of blood

Answer 5

Transportation, Regulation and Protection

Question 6

Transportation

Answer 6

• Lungs to cells oxygen
• Cells to lungs carbon dioxide
• carries nutrients to cell and removes heat and waste products
• carries important regulatory molecules such as hormones
• Route for transport of drugs and vaccines

Question 7

How does blood maintain homeostasis

Answer 7

By regulating:

• Temperature
• Salinity
• Osmolarity
• pH (buffers)

Question 8

What proteins does the blood carry from the immune system

Answer 8

• Antibody Molecules
• Other immune system molecules
• Cells which protect against infections

Question 9

What do platelets do

Answer 9

Involved in clotting - ‘leakage control’

Question 10

What makes the blood viscous

Answer 10

Anticoaglulant

Question 11

What does a clot consist of

Answer 11

Blood cells trapped in a network of protein fibres formed by the fibrin protein

Question 12

What percentage of body weight is blood

Answer 12

8%

Question 13

Percentage splits of Whole Blood

Answer 13

55% Blood Plasma

45% Formed Elements

Question 14

Percentage splits of blood plasma

Answer 14

7% Proteins

1. 5% Other Solutes
2. 5% Water

Question 15

Percentage splits of formed elements

Answer 15

99% Red Blood Cells
Platelets
White Blood Cells

Question 16

Percentages splits of white blood cells

Answer 16

60-70% Neutrophils 
20-25% Lymphocytes 
3-8% Monocytes
2-4% Eosinophils 
0.5-1% Basophils

Question 17

Percentages splits of proteins

Answer 17

54% Albumins
38% Globulins
7% Fibrinogen
1% All others

Question 18

Components of other solutes

Answer 18

Electrolytes, Nutrients, Gases, Regulatory Substances, Waste Products and Ions

Question 19

____ flow through large vessels ____ through smaller capillaries

Answer 19

Rapid; Slow

Question 20

What is serum?

Answer 20

Plasma minus clotting proteins

Question 21

What % of extra cellular fluid is blood?

Answer 21

20%

Question 22

Name the granular WBC?

And argranular?

Answer 22

Neutrophils
Eosinophils
Basophils

Lymphocytes
Monocytes