10 Questions
Which cranial nerve is associated with the special sensory component of hearing?
Optic (II)
Which division of the trigeminal nerve is responsible for sensory innervation of the cornea, skin of forehead, scalp, eyelids, and nose?
Ophthalmic division
Which cranial nerve assists in turning the eyeball downward and laterally?
Oculomotor (III)
What is the main function of the cranial nerve IV?
Lifts upper eyelid, turns eyeball upward, downward, and medially; constricts pupil; Accommodates eye
Which cranial nerve is responsible for innervating muscles of mastication, mylohyoid, anterior belly of digastric, tensor veli palatini, and tensor tympani?
Trigeminal (V)
Olfactory nerve is the first cranial nerve
True
The optic nerve is responsible for vision
True
The trochlear nerve assists in turning the eyeball downward and laterally
True
The trigeminal nerve has ophthalmic, maxillary, and mandibular divisions
True
The abducent nerve is the sixth cranial nerve
True
Study Notes
Cranial Nerves
- The special sensory component of hearing is associated with the Vestibulocochlear nerve (CN VIII).
- The Ophthalmic division of the Trigeminal nerve is responsible for sensory innervation of the cornea, skin of the forehead, scalp, eyelids, and nose.
- The Trochlear nerve (CN IV) assists in turning the eyeball downward and laterally.
- The main function of the Trochlear nerve (CN IV) is to control the superior oblique muscle, which rotates the eyeball downward and laterally.
- The Trigeminal nerve (CN V) is responsible for innervating muscles of mastication, mylohyoid, anterior belly of digastric, tensor veli palatini, and tensor tympani.
- The Olfactory nerve (CN I) is responsible for transmitting olfactory information.
- The Optic nerve (CN II) is responsible for vision.
- The Trigeminal nerve has three divisions: Ophthalmic, Maxillary, and Mandibular.
- The Abducent nerve (CN VI) is the sixth cranial nerve.
Test your knowledge of the 12 pairs of cranial nerves that are part of the peripheral nervous system. Learn about their origin from the brain, special sensory and motor components, and their functions related to hearing, seeing, smelling, balancing, and tasting.
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