10 Major Functions of Circulatory System

Circulatory system is a system of organs and structures which take part in flow of fluids for transport of materials inside an organism. The materials transported through circulatory system include water, oxygen, carbon dioxide, vitamins, nutrients, hormones and waste products.
Interaction of the Circulatory System with Other Body Systems
Interaction of the Circulatory System with Other Body Systems
Functions of Circulatory System
1. Nutrients are picked up from the site of digestion and transported to various parts of the body for supply to individual cells as well as sites of storage.

2. Homeostasis: It provides stable internal environment.

3. Circulatory system distributes heat throughout the body. It also takes it to body surface for its dissipation.

4. The system picks up oxygen from the respiratory surface and carries it to different parts of the body for supply to individual cells. It also carries carbon dioxide from around the cells to the respiratory surface for elimination.

5. Water is taken out from the region of excess and replenished in the area of deficiency by the circulatory system.

6. Circulatory fluids contain buffers for regulating pH in different parts.

7. Endocrine glands pour their hormones into circulatory system. The system carries them target cells, tissues and organs.

8. Immunoglobulins are present in the circulating fluid for immobilization of toxins and microbes.

9. Ammonia, uric acid, urea, creatine and other toxic metabolic wastes are taken up by circulating fluid from different parts of the body to the region of elimination.

10. Turgidity of various organs of animal body including skin and sex organs is provided by circulatory system.

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