Flashcards in Respiratory System Deck (34):
What are the three muscles in the intercostal region?
Internal Intercostal muscles
External Intercostal muscles
What are the three intercostal muscles innervated by?
Where do the intercostal muscles receive their blood supply from?
Internal thoracic (Anterior)
Descending aorta (Posterior)
What are the two functions of the pleural membrane?
What happens if you break the seal in the pleural membranes?
Pneumothorax (Collapsed Lung)
What are the 4 regions of the parietal pleura?
When you exhale what does the diaphragm do?
It relaxes and moves up decreasing lung volume
When you inhale what does the diaphragm do?
It contracts and pulls down increasing lung volume
Which of the pleural membranes has pain receptors?
Which nerve in the respiratory system refers pain?
How many lobes does the left lung have?
What is the name of the fissure in the left lung?
Which primary bronchi is shorter and steeper?
How many primary bronchi are there?
2 (Same Number as number of lungs)
How many secondary bronchi are there in the right lung?
Three (same # as # of lobes)
How many secondary bronchi are in the left lung?
Two (same # as # of lobes)
Which lung is more likely to get aspirated objects lodged into it?
Where do the bronchi lack cartilage?
Where is the site of gas exchange?
Do the pulmonary arteries have oxygenated or deoxygenated blood?
Where does the CO2 and O2 exchange in the lungs?
What law determines the mechanics of breathing?
What is Boyles Law?
Pressure varies Inversely with Volume
If volume increases, pressure is _____?
What is the primary muscle of respiration?
What three things pass through the diaphragm?
Inferior Vena Cava
What nerve innervates the diaphragm?
What is the function of the diaphragm?
To increase the volume of the lungs
Does the lung actively pull air in and push air out?
How does air flow into the lung?
The diaphragm contracts creating more volume in the lungs allowing air to flow in passively.
What are the accessory muscles of respiration?
If there is chest pain from an inflamed pleural membrane what nerve is responsible?
What regions of the pleural membrane do the intercostal nerves innervate?
Cervical and Costal