Biology Notes Fa Fsc Chapter No 12 Circulation

 Biology Notes Fa Fsc Chapter No 12 Circulation

Biology Notes Fa Fsc Chapter number 12 Circulation pdf

Circulation

Definition: "The movement of materials from one part through a circuit the body of living organisms is known as circulation."

Circulatory system:

Definition: " A System of channels or vessels which circulate the circulatory fluid (blood or lymph ) or other substances throughout the body of an organism is known as the circulatory system."

Types of Circulatory system:

The circulatory system is of two types. 

1. Blood Circulatory system:

Definition: " A system of Channelsor vessels which circulates blood throughout the body of an organism is known as blood circulatory system." 

2. lymphatic system:

Definition: "it is a system of channels or vessels in which lymph can flow from tissue spaces to blood is called the lymphatic system."

Question: Describe the blood circulatory system of humans.

Blood circulatory system:

Definition: "The system by means of which the blood circulates throughout the body and transports various vital materials to each and every cell of the body is called blood circulatory system."

Components of the blood circulatory system:

The blood circulatory system of human consists of:-

• Heart
• blood
• blood vessels

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