cranial nerve functions Flashcards
What is the function of the olfactory nerve (Cranial Nerve I)?
The olfactory nerve is responsible for the sense of smell.
True or False: The optic nerve (Cranial Nerve II) is involved in vision.
True
Which cranial nerve controls eye movement and pupil constriction?
Oculomotor nerve (Cranial Nerve III)
Fill in the blank: The _______ nerve (Cranial Nerve IV) innervates the superior oblique muscle of the eye.
Trochlear
What is the primary function of the trigeminal nerve (Cranial Nerve V)?
To provide sensation to the face and control mastication.
Which cranial nerve is responsible for lateral eye movement?
Abducens nerve (Cranial Nerve VI)
True or False: The facial nerve (Cranial Nerve VII) is responsible for taste sensations from the anterior two-thirds of the tongue.
True
What are the two main functions of the vestibulocochlear nerve (Cranial Nerve VIII)?
Hearing and balance.
Which cranial nerve is primarily responsible for the sensations of taste from the posterior one-third of the tongue?
Glossopharyngeal nerve (Cranial Nerve IX)
What is the main function of the vagus nerve (Cranial Nerve X)?
To regulate autonomic functions including heart rate and digestion.
Fill in the blank: The _______ nerve (Cranial Nerve XI) is responsible for shoulder and neck movement.
Accessory
What is the function of the hypoglossal nerve (Cranial Nerve XII)?
To control tongue movements.
Which cranial nerve has both sensory and motor functions?
Trigeminal nerve (Cranial Nerve V)
True or False: The facial nerve (Cranial Nerve VII) also has a role in the secretion of saliva.
True
What is the sensory function of the glossopharyngeal nerve (Cranial Nerve IX)?
Taste and sensation from the posterior one-third of the tongue.
Which cranial nerve is responsible for hearing?
Vestibulocochlear nerve (Cranial Nerve VIII)
Fill in the blank: The _______ nerve (Cranial Nerve III) is also known as the motor nerve for the eye.
Oculomotor
What is the function of the trochlear nerve (Cranial Nerve IV)?
To innervate the superior oblique muscle and facilitate eye movement.
Which cranial nerve is involved in the gag reflex?
Glossopharyngeal nerve (Cranial Nerve IX)
True or False: The accessory nerve (Cranial Nerve XI) is a purely sensory nerve.
False
What role does the vagus nerve (Cranial Nerve X) play in the body?
It regulates heart rate, respiratory rate, and digestive tract motility.
Which cranial nerve is responsible for facial expressions?
Facial nerve (Cranial Nerve VII)
Fill in the blank: The _______ nerve (Cranial Nerve VI) controls the lateral rectus muscle of the eye.
Abducens
What is the primary role of the olfactory nerve (Cranial Nerve I)?
To detect odors.
