Question

explain the role of circulatory system in maintaining homeostasis in human body

ESSAY FORMAT PLS:(

Answer 1

Homeostasis can be defined as a stable state of physical and chemical equilibrium within human body with respect to the external conditions. Different systems of our body work in conjunction to maintain homeostasis.

Circulatory system constitutes heart, blood vessels (artery and vein) and blood. It serves a very important role in maintaining homeostasis by providing a medium for transportation of various materials involved in homeostasis. This can be elaborated as follows.

• Circulatory system carries oxygen to cells and take away carbon dioxide to lungs for expulsion from body. Oxygen is required to make energy by every cell, and CO2 is a waste which needs to be removed.
• It carries toxics from different body parts to liver for degradation and elimination. Build up of toxics is threat to homeostasis.
• It carries hormones released by glands to target site and thus regulate growth and metabolism of cells and body as a whole. Hormones are critical in maintaining homeostasis.
• Heart responds to nervous stimulus (sympathetic and parasympathetic) and brings about a change in heart rate to cope with changing situations, such as during emergency when more blood flow to tissues is required.
• It carries nutrients from digestive system to different cells of the body.

Thus, circulatory system connects all other systems (respiratory, digestive, nervous and endocrine system) and helps in maintaining homeostasis by acting as a medium of transportation for diverse kind of molecules.