Which nerve innervates the diaphragm?

The diaphragm is supplied by the phrenic nerve. The phrenic nerve is formed by spinal nerves arising from C3, C4, and C5.

When food is incorrectly swallowed, which path will it typically travel?

Aspiration of foreign objects most often happens in the inferior bronchus of the right lung. This is because:

1. The right bronchus branches from the trachea at less of an angle then the left bronchus, making the right more as if it is a continuation of the trachea
2. The right bronchus has a larger diameter then the left bronchus (Refer to cross-section)
3. Inferior bronchus, because it is the straightest downward path

Between which tracheal cartilage is a tracheostomy typically placed?

A tracheostomy tube will go through an area in the trachea known as the Björk flap, which is the area around the second and third tracheal rings.

Where is a chest tube place for a tension pneumothorax?

Placement for a tension pneumothorax is near the second intercostal space along the midclavicular line of the affected side.

On what ventral surface are the central chemoreceptors?

Answer

The conducting airway includes all of the following except the?

Central chemoreceptors lie near the ventral surface of the medulla.

The conducting airway contains no alveoli and do not participate in gas exchange, it includes: nasopharnyx, oropharynx, trachea, bronchi, and bronchioles.