Week 3: CVS - The Blood

Question 1

What are the 3 types of plasma proteins?

Answer 1

Albumins - help maintain blood osmotic pressure

Globulins - antibodies, immunoglobulin

Fibrinogen - important in blood clotting

Question 2

What contains a leukocyte?

Answer 2

Eosinophil 
Basophil
Neutrophil 
Monocyte 
T Lymphocyte 
B Lymphocyte

Question 3

What are the functions of leukocytes?

Answer 3

To prevent/fight pathogens or other foreign substances that enter the body.

Question 4

What are T lymphocytes?

Answer 4

Attack viruses, fungi, cancer & some bacteria

Question 5

What are B lymphocytes?

Answer 5

Destroy bacteria and inactivate their toxins

Question 6

What are natural killer cells?

Answer 6

Attack a wide range of infectious microbes and certain tumour cells.

Question 7

What is haematocrit?

Answer 7

The percentage of blood volume occupied by erythrocytes usually 45%.

Question 8

Which blood type can be given to people with type AB blood?

Answer 8

A, B, AB, or O

Question 9

What is the extrinsic pathway?

Answer 9

Rapid

Tissue factor leaks into blood from damaged tissue

Question 10

What is the intrinsic pathway?

Answer 10

Slow

Activators are within the blood. Endothelial cells become roughed and blood contacts collagen fibres below.

Question 11

What is embolus?

Answer 11

A blood clot, debris, air bubble transported by the blood stream

Question 12

What is thrombosis?

Answer 12

Clotting in an unbroken blood vessel

Question 13

What is serum?

Answer 13

Plasma minus clotting proteins

Question 14

What is fibrin?

Answer 14

Insoluble protein fibres forming a network that traps formed elements of blood during clotting

Question 15

What is fibrinolysis?

Answer 15

Dissolution of fibrin

Question 16

What is haemostasis?

Answer 16

Haemostasis stops bleeding when blood vessels are injured

Question 17

What is erythropoietin?

Answer 17

Speeds up development of proerythroblasts into reticulocytes in response to hypoxia.