Respiratory Flashcards
How many Alveoli in the lung?
Millions
What moves Mucus and other particulates out of the lung?
Cillia
What is the order for the pathway of air into the lungs?
Pharynx, Larynx, Trachea, Bronchi, Alveoli
External respiration
process of gas exchange between atmosphere and body tissue.
Internal respiration
process of gas exchange between the blood, the interstitial fluids, and the cells. Within the cell, respiration generates energy using oxygen and glucose and provides the waste as carbon dioxide
The two lungs are separated by the ____________
Mediastinum
Oxygen is transported in the blood two ways:
- 1.5% of oxygen is carried via the plasma as a dissolved gas.
- 98.5% of oxygen is carried in the blood bound to the protein hemoglobin via red blood cells.
Carbon dioxide is transported in the blood three ways:
- 5% is carried via the plasma as a dissolved gas.
- 10% is bound to deoxyhemoglobin (Hb) in red blood cells and forms carbaminohemoglobin.
- 85% is transported as dissolved bicarbonate ions in the plasma.
Medullary Inspiratory Center
generates rhythmic nerve impulses that stimulate contraction of the diaphragm and external intercostal muscles.
Pneumotaxic Area
inhibits the inspiratory center, which limits the contraction of inspiratory muscles.
Apneustic Area
stimulates the inspiratory center, which prolongs the contraction of inspiratory muscles.
What process is this : Diaphragm contracts, which causes the chest cavity to enlarge and draw air into lungs.
Inhalation
85% of carbon dioxide is transported in the blood via __________
Dissolved Bicarbonate Ions in Plasma