Blood

Question 1

Erythrocytes

Answer 1

Red blood cells

Question 2

Leukocytes

Answer 2

White blood cells

Question 3

Main protein in blood

Answer 3

Albumin

Question 4

Thrombocytes

Answer 4

Platelets

Question 5

Red bone marrow role

Answer 5

Produced all types of blood cells

Question 6

Lymphatic tissue role

Answer 6

Produces lymphocytes

Question 7

Basophils (Granulocytes) role

Answer 7

Involved in secreting heparin and histamine

Question 8

Eosinophils (Granulocytes) role

Answer 8

Involved in allergic reactions; kill parasites

Question 9

Neutrophils (Granulocytes) role

Answer 9

Migrate out of blood vessels to engulf and digest foreign material, most abundant WBC

Question 10

Lymphocytes (Agranulocytes) role

Answer 10

• T lymphocytes involved in attacking infected or cancerous cells
• B lymphocytes produce antibodies to specific antigens

Question 11

Monocytes (Agranulocytes) role

Answer 11

Migrate into tissues to become macrophages that ingest bacteria, cellular debris and cancerous cells

Question 12

Homeostasis steps:

Answer 12

1. Vascular spasm - constrict blood vessels to slow blood flow
2. Formation of a platelet plug - Rough collagen fibers in the injured blood vessels triggers platelets passing by to become ‘sticky platelets’ which from a temporary seal
3. Formation of a blood clot - Fibrin threads form a web at the injury site to catch passing RBCs and platelets to form the blood clot
4. Dissolution of the blood clot (Fibrinolysis) - plasmin dissolves the fibrin meshwork and the clot breaks up after the vessel has healed

Question 13

Factors that discourage blood clots

Answer 13

Smooth endothelium
Blood flow
Anticoagulants

Question 14

Blood types

Answer 14

A (Contains anti-B antibody)
B (Contains anti-A antibody)
AB (Contains both anti-A and anti-B antibodies)
O (contains no antibodies, most common)