Innervations in general

Question 1

Skin of the face, except for small area over the mandible which is supplied by the ___________.

Answer 1

three divisions of trigeminal nerve

great auricular nerve (C2 &C3)

Question 2

Skin of back of scalp and neck is supplied by what?

Answer 2

Dorsal rami of spinal nerves C2-C5

Question 3

Skin of anterior and lateral aspects of the neck is supplied by what?

Answer 3

ventral rami of C2-C4 via cutaneous branches of cervical plexus

Question 4

Supplies skin over lateral part of occipital region and upper part of medial surface of auricle

Answer 4

Lesser occipital nerve (C2 or C2, C3)

Question 5

Supplies skin over angle of mandible and parotid gland and both surfaces of lower part of auricle

Answer 5

Great Auricular nerve (C2, C3)

Question 6

Supplies skin of anterior and lateral aspects of neck

Answer 6

Transverse cervical nerve (C2, C3)

Question 7

Supply skin at base of neck and skin that covers upper parts of pectoralis major and deltoid muscles.

Answer 7

Supraclavicular nerves (C3,C4)

Question 8

What nerve supplies the carotid sinus and carotid body?

Answer 8

Glossopharyngeal CN IX
Carotid sinus sensitive to chemical changes in blood composition
Carotid body respond to chemical changes in blood composition (chemoreceptors)

Question 9

Buccal nerve has what kind of fibers?

Answer 9

Sensory to skin and mucosa of the cheek

Question 10

Auriculotemporal nerve what kind of fibers?

Answer 10

sensory innervation to the auricle, external auditory meatus, tympanic membrane temporomandibular joint, and scalp

Question 11

Inferior alveoloar nerve what kind of fibers?

Answer 11

both sensory and motor fibers

enters mandibular foramen to supply teeth

Question 12

Nerve to mylohyoid has what kind of fibers?

Answer 12

motor branch of inferior alveolar innervates mylohyoid and anterior belly of digastric

Question 13

Lingual nerve, what kind of fibers?

Answer 13

general sensory to anterior 2/3 of tongue and mucosa of the floor of the mouth

Question 14

The otic ganglion has what kind of fibers?

Answer 14

Receives preganglionic parasympathetic fibers via the lesser petrosal nerve
Synapse in otic ganglion, and postganglionic parasympathetic fibers leave and join the auriculotemporal nerve to innervate the parotid gland.

Question 15

Carotid body and sinus receive innervation from what?

Answer 15

Glossopharyngeal nerve