Trachea

Question 1

trachea begins at the lower level of which cartilage?

Answer 1

cricoid cartilage

Question 2

trachea begins at the level of which vertebrae?

Answer 2

c6

Question 3

at what level does trachea birfurcate?

Answer 3

at the sternal angle b/w t4 and t5

Question 4

tracheal rings have which type of cartilage?

Answer 4

hyaline cartilage

Question 5

arterial supply of upper 2/3 of trachea?

Answer 5

inferior thyroid arteries

Question 6

arterial supply of lower 1/3 of trachea?

Answer 6

bronchial arteries

Question 7

lymph from trachea drains into:

Answer 7

pretracheal, paratracheal and deep cervical lymph nodes

Question 8

sensory nervous supply of trachea?

Answer 8

vagus and recurrent laryngeal nerves

Question 9

which bronchus is more wider, shorter and vertical?

Answer 9

right

Question 10

posterior relations of larynx?

Answer 10

esophagus
right recurrent laryngeal nerve
left recurrent laryngeal nerve

Question 11

lateral relations of larynx?

Answer 11

thyroid gland

carotid sheath

Question 12

anterior relations of larynx?

Answer 12

isthmus
inferior thyroid vein
jugular arch
thyroidea ima artery
left brachiocephalic vein (in children)
sternothyroid & sternohyoid muscles

Question 13

preferred site for entering trachea in tracheostomy?

Answer 13

through the second tracheal ring

Question 14

artery most commonly damaged during cricothyroidotomy?

Answer 14

superior thyroid artery

Question 15

which nerve can be damaged during tracheostomy?

Answer 15

recurrent laryngeal nerve

Question 16

the vein most susceptible to damage during tracheostomy?

Answer 16

anterior jugular vein