Muscle, Gland Innerv, & Foramena

Question 1

Trigeminal nerve root thickness:

Answer 1

Thick sensory root

Thin motor root

Question 2

Bulge located within the skull, in the sensory root of the trigeminal nerve:

Answer 2

Trigeminal ganglion (Anterior portion of the petrous portion of temporal bone).

Question 3

Trigeminal divisions (V1, V2, V3)

Answer 3

Ophthalmic n.
Maxillary n.
Mandibular n.

Question 4

Ophthalmic n. and Maxillary n. carry only _______ nerves.

Answer 4

Afferent nerves.

Question 5

Mandibular root of Trigeminal n. runs with the motor root and carries _____________ nerves.

Answer 5

Afferent n. & Efferent n.

Question 6

Trigeminal motor root innervates:

Answer 6

Efferent nerves for the muscles of mastication.

Question 7

Trigeminal motor root exits the skull at ____________ and continues with the mandibular n. of the sensory root.

Answer 7

Foramen Ovale

Question 8

Ophthalmic n:

Answer 8

(Smallest division) Serves as afferent n. for the:

Conjunctiva
Cornea
Eyeball
Orbit
Forehead 
Ethmoid sinus
Frontal sinus
*Portion of the dura mater.

Enters cranium through Superior Orbital Fissure (along with CN III, CN IV, & CN VI

Frontal n.
Lacrimal n.
Nasociliary n.

Question 9

Maxillary n:

Answer 9

From sensory root of Trigeminal n.

Nerve trunk formed in the Pterygopalatine fossa.

Sensory information from:
Maxilla and overlying skin.
Maxillary Sinus
Nasal Cavity 
Palate 
Nasopharynx
Portion of Dura Mater.

Branchings:
Zygomatic n.
Infraorbital n.
Anterior Superior Alveolar n.
Middle Superior Alveolar n.
Posterior Superior Alveolar n.
Greater Palatine n.
Lesser Palatine n.
Nasopalatine n.

Question 10

Mandibular n:

Answer 10

Branchings:
Buccal n.
Muscular branches
Auriculotemporal n.
Lingual n.
Inferior Alveolar n.
Mental n.
Incisive n.
Mylohyoid n.