Anatomy Of Larynx

Question 1

Q1. The recurrent laryngeal nerve:

a. supplies some intrinsic muscles of the larynx
b. supplies the cricothyroid muscle
c. supplies the inferior constrictor muscle
d. supplies sensation below the vocal cords
e. supplies sensation to the posterior two-thirds of the tongue

Question 2

Q2. Regarding the innervation of the larynx:

a. the recurrent laryngeal nerve supplies the only abductors of the cords
b. the recurrent laryngeal nerve supplies sensory innervation to the whole larynx
c. the lingual surface of the epiglottis is innervated by the glossopharyngeal nerve
d. the internal laryngeal nerve is a branch of the vagus nerve
e. damage to one recurrent laryngeal nerve leads to life-threatening stridor

Question 3

Q3. The following methods can block sensory input from the larynx:

a. local anaesthetic spray to the cords
b. local anaesthetic to the pyriform fossa
c. retrograde local anaesthetic spray through cricothyroid membrane
d. superior laryngeal nerve block in hypothyroid groove e. recurrent laryngeal nerve block

Question 4

Q4. Success of cricoid pressure in preventing aspiration depends on:

a. absence of a nasogastric tube
b. an intact cricoid cartilage
c. the oesophagus being pressed onto the vertebral body
d. extension of the neck
e. preoxygenation for 5 minutes

Question 5

Q4. Success of cricoid pressure in preventing aspiration depends on:

a. absence of a nasogastric tube
b. an intact cricoid cartilage
c. the oesophagus being pressed onto the vertebral body
d. extension of the neck
e. preoxygenation for 5 minutes

Question 6

What are the indications for performing a tracheostomy on the Intensive Care Unit?

Question 7

What are the common complications of a percutaneous tracheostomy?

Question 8

What are the functions of the larynx?

Answer 8

protective sphincter of the respiratory tract,
separating the trachea from the upper gastrointestinal tract, preventing aspiration during swallowing.
It contains the vocal apparatus, and so is important in communication, but it is also required for an effective cough and to perform a valsalva manoeuvre.

Question 9

What is the location of the larynx

Answer 9

The larynx is located in the anterior part of the neck, anterior to the bodies of the fourth to sixth cervical vertebrae and the laryngopharynx.

Question 10

Label

Answer 10

1. Hyoid bone
2. Thyroid cartilage
3. Cricoid cartilage
4. Laryngeal prominance
5. tracheal cartilages

Question 11

Label the diagram

Answer 11

1. Cuneiform cartilage
2. Vocal process of aretynoid
3. Cricoid
4. Vocal ligament

Answer 12

Answer 13

Question 14

Question 15

Answer 16

Answer 17

Question 18

Label 1-5

Answer 18