RCA Head and Neck Lecture 4 Nerve

Question 1

all the internal laryngeal muscles are supplied by what nerve except for what which is supplied by who

Answer 1

all the internal laryngeal muscles are supplied by the recurrent laryngeal nerve except for the posterior-cricothyroid muscle which is supplied by the external laryngeal nerve

Question 2

what supplies the mucous membranes of the larynx above and below the vocal folds

Answer 2

internal laryngeal nerve supplies above
recurrent laryngeal nerve supplies below

Question 3

where do the laryngeal nerves derive from

Answer 3

all derived from the vagus

Question 4

where does all the innervation of the larynx come from

Answer 4

internal and external branches of the superior laryngeal nerve and the recurrent laryngeal nerve (and its branches)

Question 5

what sensation does the internal laryngeal nerve supply

Answer 5

supplies sensation to laryngeal mucosa superior to vocal folds

Question 6

what does the external laryngeal nerve supply

Answer 6

the cricothyroid muscle

Question 7

where do the branches of the recurrent laryngeal nerve originate

Answer 7

left in the thorax, right in the root of the neck.
they ascend on their respective sides in the groove between trachea and oesophagus

Question 8

what do the recurrent laryngeal nerves supply

Answer 8

all instrinsic muscles of the larynx except the cricothyroid and also sensation to the mucous membranes inferior to the vocal folds

Question 9

whats the innervation of the mylohyoid muscle

Answer 9

mylohyoid nerve, which is a branch of the inferior alveolar nerve

Question 10

whats the nerve innervation of the geniohyoid muscle

Answer 10

C1 via the hypoglossal nerve

Question 11

what does the lingual nerve supply

Answer 11

general sensation to the mucosa of the anterior 2/3 of the tongue and floor of the oral cavity

Question 12

whats the chorda tympani a branch of

Answer 12

a branch of the facial nerve

Question 13

whats the chorda tympani supply

Answer 13

joins the lingual nerve and runs in its sheath, supplies taste to the taste to the anterior 2/3 of the tongue and PNS supply to the glands

Question 14

whats the inferior alveolar nerve a branch of

Answer 14

the mandibular branch of the trigeminal

Question 15

whats the inferior alveolar nerve supply

Answer 15

sensation to the lower teeth

Question 16

what does the mylohyoid nerve branch from

Answer 16

the inferior alveolar nerve at the mandibular foramen

Question 17

what does the inferior alveolar nerve become and where

Answer 17

gives rise to the mental nerve at the mental foramen at the front of the chin

Question 18

what gives rise to the parasympathetic pterygopalatine ganglion

Answer 18

two branches of the maxillary nerve in the pterygopalatine fossa

Question 19

what are the names of the sensory fibres coming out of the pterygopalatine ganglion

Answer 19

greater palatine, lesser palatine, nasopalatine, nasal and pharyngeal nerves

Question 20

what do the greater palatine and lesser palatine nerves supply

Answer 20

the hard palate
the soft palate

Question 21

how do the greater palatine nerves and lesser palatine nerves get to the palate

Answer 21

through palatine canal and enter they palate via the greater and lesser palatine foramen

Question 22

path of the nasopalatine nerve

Answer 22

runs medially and enters the nasal cavity. runs on the nasal septum and through a foramen to anterior hard palate

Question 23

what does the nasal nerve supply

Answer 23

enters the nasal cavity and supplies parts of the lateral wall and septum

Question 24

what does the pharyngeal nerve supply

Answer 24

supplies mucous membranes of the nasopharynx

Question 25

where does the posterior superior alveolar nerve arise from and whats it supply

Answer 25

arises from maxillary nerve and supplies posterior upper teeth

Question 26

where does the anterior superior alveolar nerve come from and what does it supply

Answer 26

arises from the infraorbital nerve and supplies the upper anterior aspect of the teeth