MT CH 7 Cranial Nerves Flashcards
(12 cards)
What is the function of the olfactory nerve?
Carries impulses for the sense of smell toward the brain
The olfactory nerve is responsible for the sense of smell.
What is the function of the optic nerve?
Carries visual impulses from the eye to the brain
The optic nerve is crucial for vision.
What does the oculomotor nerve control?
Movement of eye muscles; carries the parasympathetic fibers that constrict the pupil
The oculomotor nerve is important for eye movement and pupil constriction.
What is the function of the trochlear nerve?
Controls a muscle of the eyeball
The trochlear nerve is involved in eye movement.
What is the primary function of the trigeminal nerve?
Carries sensory impulses from the eye, upper jaw, and lower jaw toward the brain; controls chewing muscles
The trigeminal nerve has both sensory and motor functions.
What does the abducens nerve control?
Controls a muscle of the eyeball
The abducens nerve is primarily responsible for lateral eye movement.
What is the function of the facial nerve?
Controls muscles of facial expression, carries sensation for taste, stimulates small salivary glands and lacrimal (tear) glands
The facial nerve is involved in facial movements and taste sensations.
What does the vestibulocochlear nerve carry?
Impulses for hearing and equilibrium from the inner ear toward the brain
The vestibulocochlear nerve is also known as the auditory or acoustic nerve.
What is the function of the glossopharyngeal nerve?
Carries sensory impulses from the tongue and pharynx, controls swallowing muscles, and stimulates the parotid salivary gland
The glossopharyngeal nerve plays a role in taste and swallowing.
What does the vagus nerve supply?
Most of the organs in the thoracic and abdominal cavities; carries motor impulses to the larynx (voice box) and pharynx
The vagus nerve has a wide range of functions affecting many organs.
What is the function of the spinal accessory nerve?
Controls muscles in the neck and larynx
The spinal accessory nerve is involved in neck movement.
What does the hypoglossal nerve control?
Controls muscles of the tongue
The hypoglossal nerve is essential for speech and swallowing.
