Thoracic cavity- The thoracic cavity protects and holds the lungs, heart, trachea, esophagus, endocrine glands, thoracic aorta and the pulmonary artery. Enclosed by the ribs, breast bone and vertebral column it is the second-largest hollow space of the human body.
Lungs- The lungs main function is to help oxygen from the air we breathe enter the red cells in the blood. Red blood cells then carry oxygen around the body to be used in the cells found in our body. The lungs also help the body to get rid of CO2 gas when we breathe out.
Tidal volume is the volume of air you breathe in a single breath. Exercise causes an increase in tidal volume because your requirements for oxygen go up as your working muscles need the oxygen, so the increase in tidal volume is necessary to meet your bodies increase in oxygen requirements. Your breathing rate will also rise as your body needs to get more oxygen to the muscles and to get rid of the carbon dioxide, when an athlete works their breathing rate will rise but slower because they have a higher tidal volume which means they can breathe more oxygen in in one breath. During a game the player’ s fatigue so they will be trying to take in as much oxygen as they can from each breath so they can carry on performing.
If the breathing rate and tidal volume do not increase during acute exercise they will fatigue very quickly and will not be able to perform, their working muscle will be deprived of oxygen so they will be working anaerobically, this means a lot of waste product such as lactic acid will form and cause the player to stop and recover. So it is essential for both tidal volume and breathing rate to increase.
Cardiovascular system:
The cardiovascular system consists of the heart, blood vessels, and blood. The four major functions of the cardiovascular system are: To transport nutrients, gases and waste products around the body, to protect the body from infection and blood loss, to help the body maintain a constant body temperature and to help maintain fluid balance within the body.
Transportation: the cardiovascular system goes all around the body like a network, this network allows blood to deliver and expel nutrients, gases, waste products and messages throughout the body. Nutrients such as glucose from digested carbohydrate are delivered from the digestive tract to the muscles and organs that require them for energy this is one