must learn by tomorrow

Question 1

What are the branches of the jugular nerve

Answer 1

1) auricular branch
2) pharyngeal branch
3) superior laryngeal nerve
4) recurrent laryngeal nerve

Question 2

What is the function of the auricular branch

Answer 2

vagus branch

It provides sensory innervation to the skin of the ear

Question 3

What are the functions of the pharyngeal branch

Answer 3

vagus branch
it provides motor innervation to pharyngeal constrictors
and soft palate muscles except for tensor veli palatini

Question 4

What innervates stylopharyngeus?

Answer 4

glossopharyngeal

Question 5

Internal laryngeal nerve function

Answer 5

sensory function for the larynx

Question 6

external laryngeal nerve

Answer 6

motor function for the larynx

Question 7

Recurrent laryngeal nerve

Answer 7

supplies all the intrinsic muscles of the larynx with the exception of the cricothyroid muscles

Question 8

What is the geniculate ganglion?

Answer 8

It is a collection of sensory neurons of the facial nerve

Question 9

Chorda tympani functions

Answer 9

special sensory and parasympathetic

Question 10

Where does the chorda Tympani’s special sensory functions supply?

Answer 10

anterior 2/3rds of tongue

Question 11

Where does the chorda tympani’s parasympathetic functions supply?

Answer 11

these combine with the lingual nerve (a branch of the trigeminal) in the infratemporal fossa and form the submandibular ganglion. These supply the submandibular and sublingual salivary glands

Question 12

What supplies the muscles of facial expression?

Answer 12

Facial nerve

Question 13

What are some of the general branches of the facial nerve?

Answer 13

1) temporal branches
2) zygomatic branches
3) buccal branches
4) marginal mandibular branches
5) cervical branches

(these are practically all motor and you could guess what they innervate based off relative location

Question 14

What muscles does the temporal branch of the facial nerve innervate?

Answer 14

The frontalis

orbicularis oculi and corrugator supercilii

Question 15

What muscles does the zygomatic branch of the facial nerve innervate?

Answer 15

The orbicularis oculi

Question 16

What muscles does the buccal branches of the zygomatic branch of the facial nerve innervate?

Answer 16

The orbicularis oculi

Question 17

What branches does the marginal mandibular branch innervate

Answer 17

Depressor labii inferioris, depressor anguli oris and mentalis

Question 18

What branches does the cervical branch

Answer 18

innervates the platysma

Question 19

Greater petrosal nerve

Answer 19

part of facial nerve. It gives parasympathetic innervation to the mucous glands of the oral cavity, nose and pharynx

Question 20

Lesser petrosal nerve

Answer 20

The lesser petrosal nerve is part of the glossopharyngeal nerve, whereas the greater petrosal nerve is from the facial nerve

Question 21

Action of the buccinator muscle

Answer 21

compresses cheek

Question 22

Action of the orbicularis oris muscle

Answer 22

closes the lips-more specifically it contracts and brings the lips together, closing the entire mouth

Question 23

Levator labii superioris function

Answer 23

elevate and exert upper lip

Question 24

depressor labii inferioris function

Answer 24

pulling the lower lip down

Question 25

Levator labii superioris alaeque nasi function

Answer 25

elevate and evert the upper lip and elevate, deepen and increase curvature of nasolabial furrow

Question 26

mentalis muscle function

Answer 26

The mentalis muscle acts to depress and evert the base of the lower lip, while also creating wrinkles on the skin of the chin. These actions contribute to certain activities such as shaping the lips while drinking, as well as creating facial expressions to convey feelings of sadness, contempt and doubt.

Question 27

Risorius muscle function

Answer 27

pulling the angles of the mouth laterally to produce a smile

Question 28

Levator anguli oris function

Answer 28

elevate the angles of the lips and contribute to the smile

Question 29

Depressor anguli oris

Answer 29

acts to depress the angle of the mouth which contributes to expressing feelings of sadness or anger

Question 30

nasalis function

Answer 30

compressing the nasal aperture with its transverse part and dilating the nostrils with its alar part

Question 31

procerus function

Answer 31

acts to create facial expression of frowning to convey emotions of anger or sorrow or when exposed to bright light

Question 32

corrugator supercilii function

Answer 32

pull eyebrows medially and produces vertical wrinkles over the glabella, creating a facial expression of frowning

Question 33

orbicularis occuli

Answer 33

depends on which part of the muscle contracts. Contraction of the orbital part pulls the skin of the forehead and cheek towards the nose and tightly closes the eyes, commonly for protective purposes. In turn, the palpebral part exhibits a finer control of the eyelids by closing them gently during blinking or sleeping. Finally, the deep palpebral part pulls the eyelids and lacrimal papillae medially and dilates the lacrimal sac, while compressing the lacrimal gland and ducts. These actions facilitate the flow of tears across the lacrimal apparatus.

Question 34

What causes the motor innervation of the facial muscles

Answer 34

facial nerve

Question 35

What causes the sensory innervation of the facial muscles

Answer 35

3 sensory cutaneous branches of the trigeminal nerve

Question 36

What glands do the facial nerve supply?

Answer 36

Primarily through chorda tympani and greater petrosal nerve

they supply pretty much everything but the parotid.

1) submandibular
2) sublingual
3) lacrimal glands
4) glands of palate
4) nasal mucosa

Question 37

what nerve branches off the geniculate ganglion

Answer 37

greater petrosal nerve

Question 38

What nerve branches off 5mm above the stylomastoid foramen?

Answer 38

Chorda tympani and sensory auricular branch

Question 39

What branches off at the stylomastoid foramen?

Answer 39

posterior auricular nerve and small branches, like the belly of digastric and stylohyoid