Trachea

Question 1

Extendes from ____ to ____

Answer 1

C6
T4

Question 2

Tracheal length

Answer 2

15 cm

Question 3

The trachealis muscle

Answer 3

Closes the tracheal posterior boarder

Question 4

Trachea has up to ___ cartilages joined by ____

Answer 4

20 C shaped
Fibroelastic tissue deficient posteriorly

Question 5

Anterior to trachea in the neck

Answer 5

skin, superficial and deep fascia, thyroid isthmus (over second to fourth rings), sternothyroid and sternohyoid muscles (lower neck) and the anterior jugular vein communications and thyroidea ima artery (also lower neck)

Question 6

Posterior to the trachea in the neck

Answer 6

oesophagus and recurrent laryngeal nerves

Question 7

Lateral to the trachea in the neck

Answer 7

lateral lobes of the thyroid and carotid sheath (with internal jugular vein, common carotid artery and vagus nerve)

Question 8

Anterior to trachea
In thorax

Answer 8

inferior thyroid veins, sternothyroid origins, thymus remnants, brachiocephalic artery, left common carotid artery and aortic arch. The pulmonary bifurcation lies behind the carina

Question 9

Posterior to trachea in thorax

Answer 9

oesophagus and left recurrent laryngeal nerve

Question 10

Lateral to trachea in thorax

Answer 10

Right – pleura, azygos vein and right vagus nerve

Left – pleura, left common carotid, left subclavian artery, aortic arch and left vagus

Question 11

Tracheotomy

Answer 11

Page 14

Question 12

Tracheal vessels

Answer 12

Artery : inf thyroid artery
Vein : inf thyroid vein

Question 13

Tracheal nerves

Answer 13

Recurrent laryngeal branch of the vagus and sympathetic branches of the middle cervical ganglion