Question
What is called blood circulation system? How many types are there? Describe each with examples.
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Answer
Blood Circulatory System : In humans, the system that transports O2, and CO2, nutrients, excretory substances and secretory substances from one part of the body to another is called blood circulation system.
There are two types of circulatory system:
(1) Open circulatory system: In this type of circulation, the blood is pumped out of the heart and the cells and tissues are directly bathed in it
(2) Closed circulatory system: In this circulatory system the blood is circulated through a series of vessels of varying diameters (arteries, veins and capillaries). Like- human.
There are two types of circulatory system:
(1) Open circulatory system: In this type of circulation, the blood is pumped out of the heart and the cells and tissues are directly bathed in it
(2) Closed circulatory system: In this circulatory system the blood is circulated through a series of vessels of varying diameters (arteries, veins and capillaries). Like- human.
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ii. Name the only movable bone in the skull of man?
iii. Due to the presence of which pigment skeletal muscles are categorised into red and white muscles?