lecture 4 - head & neck 4

Question 1

What are the 2 folds formed by the quadrangular membrane?

Answer 1

Aryepiglottic fold, vestibular fold

Question 2

What fold is formed by the cricothyroid membrane?

Answer 2

vocal fold

Question 3

What is the name of the gap between the two vocal cords?

Answer 3

Rima glottidis

Question 4

What is the space within the larynx above the vestibular folds?

Answer 4

Vestibule

Question 5

What is the function of the cricothyroid muscle?

Answer 5

stretches and tenses vocal cords

Question 6

What is the function of the thyro-arytenoid muscle?

Answer 6

relaxes vocal fold

Question 7

What is the function of the lateral crico-arytenoid muscle?

Answer 7

adducts vocal fold (brings folds together)

Question 8

What is the function of the transverse and oblique arytenoid muscles?

Answer 8

aid in adduction of the vocal cords

Question 9

What is the function of the aryepiglottic muscle?

Answer 9

narrows entrance to larynx, preventing food from entering

Question 10

What is the function of the posterior crico-arytenoid muscle?

Answer 10

abducts vocal folds

Question 11

What is the nerve supply for the intrinsic muscles of the larynx?

Answer 11

Recurrent laryngeal nerve for all except cricothyroid (external laryngeal)

Question 12

What is the nerve supply to the mucous lining of the larynx above the vocal cords?

Answer 12

Internal laryngeal nerve

Question 13

What is the nerve supply to the mucous lining of the larynx below the vocal cords?

Answer 13

Recurrent laryngeal nerve

Question 14

What cranial nerve branches into the laryngeal nerves?

Answer 14

Vagus nerve

Question 15

Where does the left recurrent laryngeal nerve originate?

Answer 15

The thorax

Question 16

Where does the right recurrent laryngeal nerve originate?

Answer 16

root of the neck

Question 17

Which muscles form the floor of the mouth?

Answer 17

Mylohyoid

Question 18

What nerve supplies the mylohyoid muscle?

Answer 18

Mylohyoid nerve, a branch of the inferior alveolar nerve of V3

Question 19

What is the innervation of geniohyoid?

Answer 19

C1 via the hypoglossal nerve

Question 20

How many adult teeth are there?

Answer 20

32

Question 21

What are the 3 types of teeth?

Answer 21

molar, premolars, incisors

Question 22

How many deciduous teeth does a child have?

Answer 22

20 total

Question 23

Which nerve does the lingual nerve arise from?

Answer 23

V3 (mandibular)

Question 24

Which nerve does the lingual nerve run with?

Answer 24

Chorda tympanii (branch of facial nerve)

Question 25

What does the lingual nerve supply?

Answer 25

General sensation (not taste) to the mucosa of anterior 2/3 of the tongue and floor of the oral cavity

Question 26

What does the chorda tympani nerve supply?

Answer 26

taste to anterior 2/3 of tongue, parasympathetic, secretion at submandibular and sublingual glands

Question 27

What does the inferior alveolar nerve become when it exits the mental foramen?

Answer 27

mental nerve

Question 28

Where do the greater and lesser palatine nerves enter the mouth?

Answer 28

Through the greater and lesser palatine foramina

Question 29

What does the greater palatine nerve supply?

Answer 29

sensation to hard palate

Question 30

What does the lesser palatine nerve supply?

Answer 30

the soft palate

Question 31

Where does the nasoapalatine nerve enter the hard palate?

Answer 31

via the incisory canal

Question 32

Where does the maxillary nerve change name to infraorbital nerve?

Answer 32

At the inferior orbital canal/fissure

Question 33

Which muscle does the glossopharyngeal nerve supply?

Answer 33

The stylopharyngeus