innervation of the Oral Cavity Flashcards
sensory innervation of the mucosa is derived from what nerves?
V2 and V3 of the trigeminal nerve
what innervates the mucosa of the cheek, mucosal lining of the palate (undersurface), and the tongue
trigeminal nerve; branch of V3 innervates the cheeks and the tongue and branch of V2 innervates the undersurface of the tongue
Motor nerves that regulate movement of the lips?
facial nerve, CN VII
Motor nerves that regulate opening and closing of the mouth
branch of V3 from the Trigeminal nerve
Motor nerve input to the muscles of the tongue
hypoglossal nerve
what is the mucosal lining of the oral cavity innervated by?
CN 5 (trigeminal nerve)
what are the sensory innervations of the tongue (general sensation)? taste
CN V, IX (V3); CN VII, IX, X
innervation for the general somatic sensation for two thirds of the tongue is? root of the tongue (poster one third)?
trigeminal nerve; glossopharyngeal nerve
Motor innervation to the tongue is provided through the ______ nerve?
hypoglossal nerve
The lips are moved by?
facial nerve (CNVII)
what nerve closes the mouth?
CN V
which branches of the trigeminal nerve are sensory in function? the chin is innervated by which branch?
V1 (skin of the forehead, the eyes, cornea, tip of the nose) and V2 (under the eyes and above the lip)
V3
what is unique about V3?
motor component that innervates the muscles that close the jaw and also carries general somatic innervation toward feelings of pain when you burn the inside of your mouth due to hot cheese from pizza
nerves that provide special sensory sensation are the _____ nerves?
anterior 2/3 of tongue innervated by branch of the facial nerve, posterior 1/3 of tongue by the glossopharyngeal nerve
which nerve is responsible for moving the tongue?
CN XII
this branch of the trigeminal nerve provides sensory innervation to the teeth of the upper jaw?
V2
this branch of the trigeminal nerve supplies the teeth of the lower jaw and closes the mouth along with muscles of mastication?
V3
this branch of the trigeminal nerve also supplies general sensory innervation to the anterior 2/3 of the tongue?
V3
this nerve provides general sensory sensation to the inside surface of the cheeks.
V3
what do the nerve fibers in the tongue convey?
Somatic motor
Somatic (general) sensory
Special sensory
what is the somatic motor nerve fiber from the tongue?
CN XII (hypoglossal nerve; one muscle, the palatoglossal muscle, is innervated by CN X)
what is the somatic general sensory nerve fiber from the tongue?
CN 5 V3 to anterior (2/3) tongue; CN IX to posterior (1/3) tongue
what is the special sensory nerve from the tongue?
CN VII (by way of the chorda tympani to anterior 2/3); CN IX to posterior 1/3; CN X
The involuntary movement of the pharynx and esophagus is controlled by what nerve?
vagus nerve
