Blood Composition

Blockage in blood vessel

Thrombosis - Deposit of cholesterol inside lumen of blood vessel which clogs the blood vessel
Embolism - Movement of cholesterol inside blood vessel which clogs the blood vessel and leads to thrombosis
Arteriosclerosis - Deposit of fat/cholesterol inside the lumen of a blood vessel which cause narrowing of the lumen and leads to clogging

Effect to the individual with blockage
- Chest Pain
- Stroke
- Heart attack.

Blood Clotting

Role of Lymphatic System

to collect and return interstitial fluid, including plasma protein to the blood,  and thus help maintain fluid balance,


to defend the body against disease by producing lymphocytes,

to absorb lipids from the intestine and transport them to the blood.

The lymphatic system and the lymph capillaries helps in getting oxygen and nutrients to the cells by removing dead cells, poisons, toxins, and excess water from the tissue spaces around the cells

Review Question for Circulatory System

1) Which camber of the human heart has the thickest wall? Explain why.

2) What are the differences in the structure and function of an artery and a vein?

3) Differentiate a single circulatory system from a double circulatory system.

4) What is the advantage of having open circulatory system?

Blood Clotting

Chapter 10 : Transport