The three systems in our body that work together are cardiovascular, respiratory and digestive systems which supply energy to the cells of the body. I will be describing their role of energy in the body system; also I am going to explain the physiology of the three named body systems in relation to energy metabolism.
Respiratory System
The respiratory system consists of tissues and organs in our body which are formed into groups. The system includes airways, lungs, blood vessels and muscles attached to work together so an individual can breathe. The respiratory systems primary function is to supply oxygen to all the parts of the body. Every time we inhale oxygen we have to exhale carbon dioxide.
The respiratory system and digestive system work together in various different ways. The respiratory allows the digestive tract to function and same for the digestive system. Also they both work together to provide energy to body cell.
The metabolism is tied to the respiratory system because the system is responsible for providing oxygen in our body.
Digestive System
The digestive system functions in a way which is firstly ingestion (in taking food), digestion (breaking down the food), absorption (extracting the nutrients from food) and finally defection (waste of food).
The digestive system is a group of organs that breakdown the chemical components of food, with fluid (digestive juices) into tiny nutrients which can be absorbed to generate energy. The mouth, pharynx, oesophagus, stomach, liver, gall, bladder, jejunum, ileum, and colon break down the food.
Cardiovascular system
The heart is a muscular pump that makes blood around the body through a system of blood vessels (arteries, veins and capillaries). Blood carries dissolved oxygen to the body cells and at the same time removes the waste products of respiration (carbon dioxide and water). Blood is also important in distributing heat around the body, along with hormones,