Respiratory 3 Flashcards
Process that moves air into and out of the lungs
Pulmonary ventilation
Muscles of inspiration
Inspiratitory muscles
Inspiration muscles
Diaphragm and external intercostals
Nerve that stimulates the diaphragm
Phrenic nerve
Expiratory muscles during forceful expiration
Internal intercostals and abdominal muscles
The exchange of gasses between the blood and alveolar air
External respiration
When respiratory gases in air or bloo constitutes only part of the total pressure present
Partial pressure (P)
The exchange of gases that occurs between blood in systematic capillaries and the body cells
Internal respiration
Hemoglobin molecules are large proteins that contain four iron containing components called
Heme
Three ways in which carbons dioxide can be transported
Dissolved carbon dioxide (CO2), carbaminohemoglobin, bicarbonate ions
The presence of what in blood cells speeds up the reaction that produces bicarbonate ions
Carbonic anhydrase
Used to measure the amount of air exchanged in breathing
Spirometer
The amount of air that we generally breathe in and out on a regular basis
Tidal volume (TV)
Largest amount of air we can breathe out in one expiration
Vital capacity
Amount of air that can be forcibly exhaled after expiring tidal volume
Expliratory reserve volume (ERV)
