Part I: Cranial Nerves Flashcards
Controls the skeletal muscles of the face
Facial
Main nerve used to move the eyeball
Oculomotor
Has ophthalmic, maxillary, and
mandibular branches
Trigeminal
Allows for hearing and balance
Vestibulocochlear
Moves the eyeball laterally
Abducens
Moves the tongue for speech
Hypoglossal
Main nerve used for taste
Facial
Allows for vision
Optic
Moves the eye out and down
Trochlear *Inferolateral movement
Has important role in the regulation of blood pressure and breathing rate
Glossopharyngeal, Vagus *Baroreception, Chemoreception
Controls mastication (chewing) muscles
Trigeminal
Regulates parasympathetic actions of
almost all organs
Vagus
Moves the tongue during swallowing
Glossopharyngeal, Hypoglossal
Has a section that crosses through
the middle ear, over the eardrum
Facial
*Middle ear infections can put pressure on it,
causing temporary loss of taste sensations
Allows eyes to focus on nearby objects
Oculomotor
Controls contractions of the trapezius
and sternocleidomastoid muscles
Accessory
Interprets taste and sensation for the tongue
Glossopharyngeal
Main nerve for speech (controls larynx)
Vagus (*Accessory helps)
Provides facial sensory information
Trigeminal
Gets its name because it assists functions
of the Vagus
Accessory
Allows for smell
Olfactory
Has five branches
Facial
Has only motor functions
Oculomotor, Trochlear,
Abducens, Hypoglossal, Accessory
Has mixed functions
Trigeminal, Facial, Glossopharyngeal, Vagus
Involved in speech
Hypoglossal, Vagus, Accessory
Tongue Larynx
Controls the sound attenuation
reflex
Trigeminal, Facial
