The Effects of Exercise on the Pulmonary Ventilation Rate

872 WordsMar 12, 20043 Pages
Respiration is the process that takes place in every living cell to make energy available to the body. Energy is vital for us to carry out many life processes such as movement and so respiration in essential to life. During respiration glucose and oxygen are used in a reaction that produces energy and gives out carbon dioxide and water as waste products. Glucose is obtained by digestion of food and oxygen is taken from the air during a process called breathing or ventilation. Pulmonary Ventilation is the term given to the movement of air in and out of the lungs; the rate of pulmonary ventilation is defined as the tidal volume multiplied by the number of breaths taken per minute. Tidal volume is the volume of air breathed in or out during…show more content…
The inspiratory system sends an impulse to the muscles of inspiration - the diaphragm and the external intercostals muscles - and the stimulation of these muscles causes us to breathe in. As the lungs expand due to inspiration this change is detected by pressure receptors of stretch receptors which then stimulate the expiratory centre, which then stimulates the muscles of expiration - the diaphragm and the internal intercostals
Open Document