Trachea

Question 1

at what vertebral level is the trachea?

Answer 1

C6-T6

Question 2

What is it a continuation of

Answer 2

continuation of larynx

Question 3

what does it develop from?

Answer 3

laryngo-tracheal diverticulum

Question 4

what is the trachea made up of

Answer 4

fibro-elastic wall supported by C-shaped cartilaginous skeleton (the last tracheal ring is called carina)

Question 5

what is the gap of the C shaped ring is closed by

Answer 5

fibro-elastic membrane and trachealis muscle

Question 6

what cells are the mucous membrane lined with

Answer 6

ciliated columnar epithelium

Question 7

what is the blood supply of the trachea?

Answer 7

Cervical part of the trachea is supplied by branches coming from inferior thyroid artery

Question 8

where do the veins drain?

Answer 8

left brachiocephalic vein

Question 9

what is the lymphatic drainage?

Answer 9

pretracheal and paratracheal lymph nodes

Question 10

what is the parasympathetic nerve supply

Answer 10

by recurrent laryngeal through vagus, which is motor to trachealis and secretomotor to mucous membrane

Question 11

what is the sympathetic nerve supply

Answer 11

the middle cervical sympathetic ganglion, which reach through inferior thyroid arteries, and are vasomotor