In a closed circulatory system, blood is completely enclosed withina)heartb)vesselsc)skeletond)sinusesCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

The closed circulatory system is where the blood flows into specialized blood vessels such as arteries, veins, and capillaries. In the closed circulatory system, the blood never comes out in direct contact with the tissues. For example, human being, dogs, rat.

Answer

In a closed circulatory system, blood is completely enclosed within vessels. The blood flow throughout the body within the vessels enclosed in it . It does not come outside to make a direct contact with the cells. All the materials flow inside the walls of the blood vessels enclosed in the them . The blood flow within the blood vessels at a high pressure so that it may reach all the parts of the body to supply them all the essential materials.

Answer

In a closed circulatory system, blood is completely enclosed within vessels.
The blood always remains inside the blood vessels and never comes in direct contact with the cells. The materials enter and exit the blood vessels through the walls. The blood flows in the blood vessels under high pressure such that it reaches all the parts of the body in good time. The blood vessels are branched into fine capillaries which are actually involved in the exchange of materials.
Therefore, the correct answer is option B.

Answer

Vessels

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