respiratory

Question 1

what vertebral levels mark length of trachea?

Answer 1

C6-T5

Question 2

what is the vertebral level where right superior bronchus and left principle bronchus enter hilum of lung?

Answer 2

right superior-T5

left bronchus- T6

Question 3

where are the type 1 and 2 epithelial cells located and what is their function?

Answer 3

type-1-alveolar cells, blood-air barrier associated with numerous capillaries.
type-2 produces surfactant and macrophages/not an epithelium.

Question 4

trachea bifurcates at the level of ….

Answer 4

T5/just below sternal angle.

Question 5

T/F: parietal pleura lines the pleural cavity and root of the lung

Answer 5

true.

Question 6

T/F, pulmonary ligament is a fold of visceral pleura.

Answer 6

false, it’s parietal.

Question 7

what are the pleural recesses?

Answer 7

2, where parietal pleura comes in contact with diaphragm- costodiaphragmatic recess, or mediastinum- costomediastinal recess.

Question 8

what is the nerve innervation of visceral and parietal pleura?

Answer 8

visceral-none

parietal-phrenic and intercostals-pain sensitive

Question 9

what is the nervous supply, blood supply and lymph drainage of trachea?

Answer 9

nerves; vagus and symp trunk, blood- inferior thyroid vessels, lymph, pretracheal, paratracheal nodes that drain into deep cervical nodes which goes to jugular trunk.

Question 10

what is the nervous supply, blood supply and lymph drainage of bronchus and lungs?

Answer 10

nerves: pulmonary plexus; vagus and symp trunk, blood; deoxy from pulmonary arteries, oxy from small bronchial arteries branches of aorta. veins-bronchial veins draining into azygous, lymoh- subpleural and deep lymph vessels drain along bronchi and ultimately into bronchomediastinal trunk.