The diaphragm of the person contracts and expands the lungs. The low pressure in the lungs forces air to rush in the nasal or oral cavity. The air goes past the pharynx, larynx (voice box) and past the epiglottis (stops food and water from entering your lungs). Once past the epiglottis the air ruches down your trachea to your bronchi. The air then enters your lungs witch oxygen diffuses trought the alveoli and capillary forcing oxygen the enter the blood and carbon dioxide to enter th lungs for exhaleation.
Tidal volume: the air that enters the lungs in a normal breath
Insratory reserve voume: the amount of air brought into the lungs in a normal deep breath
Expiratory reserve volume: the amount of air expelled from the lungs in a normal breath
Residule volume: the leftover vloume after fully exhaling
Hemoglobin carries oxygen trought the bloody via red blood cells can also act as a buffer
Oxyhemoglobin is hemoglobin bound with oxygen
CO2 cobines with water to from carbonic acid in the blood but when the O2 trys to reattach to the hemoglobin the carbonic acid then turns back into CO2 and H20
Tidal volume: the air that enters the lungs in a normal breath
Insratory reserve voume: the amount of air brought into the lungs in a normal deep breath
Expiratory reserve volume: the amount of air expelled from the lungs in a normal breath
Residule volume: the leftover vloume after fully exhaling
Hemoglobin carries oxygen trought the bloody via red blood cells can also act as a buffer
Oxyhemoglobin is hemoglobin bound with oxygen
CO2 cobines with water to from carbonic acid in the blood but when the O2 trys to reattach to the hemoglobin the carbonic acid then turns back into CO2 and H20