Uddhav

Digestive system

The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body

The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body. Together, the brain and spinal cord that extends from it make up the central nervous system, or CNS.

The Role of Heart In Transport

Heart function as a pump in our body as well as that most other animals. Around 7000 liter of blood is pumped through our heart which is no more than the size of our fist. There are 4 major chambers in our heart. The two upper chambers are called as auricles and the lower ones are called ventricles. There are values between auricles and ventricles as well as between auricles and blood vessels or ventricles and blood vessels that arrest backflow of blood . The left side of the heart is separated from the right by a partition called septum thus no mixing of blood of Chambers in right with those in left occur . The chambers in the right have deoxygenated blood while those on left have oxygenated blood . Auricles contract together and blood flows out through them into the ventricles.As ventricles contract blood flows out from the heart into arteries and simultaneously,blood flows into the auricles from veins.

The function of the heart is controlled and coordination via nerves From the brain as well as an elaborate network of nerves in the heart.