Cranial Nerves Flashcards
What are the names of the 12 cranial nerves?
Olfactory, Optic, Oculomotor, Trochlear, Trigeminal, Abducens, Facial, Vestibulocochlear, Glossopharyngeal, Vagus, Accessory, Hypoglossal.
What does the Olfactory nerve control?
Sense of smell.
Which cranial nerve is responsible for vision?
Optic nerve.
What function does the Oculomotor nerve serve?
Controls most eye movements and pupil constriction.
True or False: The Trochlear nerve is the only cranial nerve that exits from the dorsal aspect of the brainstem.
True.
What does the Trigeminal nerve control?
Facial sensation and mastication (chewing).
Which cranial nerve is responsible for lateral eye movement?
Abducens nerve.
What are the primary functions of the Facial nerve?
Controls facial expressions, taste from the anterior two-thirds of the tongue, and some functions of salivary and lacrimal glands.
What does the Vestibulocochlear nerve control?
Hearing and balance.
What is the primary function of the Glossopharyngeal nerve?
Taste from the posterior one-third of the tongue and swallowing.
True or False: The Vagus nerve is involved in regulating heart rate and digestion.
True.
What does the Accessory nerve control?
Shoulder and neck muscles.
What is the main function of the Hypoglossal nerve?
Controls tongue movements.
Fill in the blank: The sensory function of the Trigeminal nerve has ___ branches.
Three.
Which cranial nerve is tested by asking a patient to smell a substance?
Olfactory nerve.
What test is commonly used to assess the Optic nerve?
Visual acuity test.
How is the Oculomotor nerve tested?
By checking pupil response and eye movement.
What test assesses the function of the Trigeminal nerve?
Light touch and pain sensation tests on the face.
Which cranial nerve is assessed by the ability to follow a moving object with the eyes?
Oculomotor, Trochlear, and Abducens nerves.
What is the primary method to test the Facial nerve?
Asking the patient to smile or frown.
How is the Vestibulocochlear nerve tested?
By performing a hearing test and balance assessment.
What test is used for the Glossopharyngeal nerve?
Gag reflex assessment.
True or False: The Vagus nerve can be tested by assessing the uvula’s position.
True.
What is the common test for the Accessory nerve?
Shoulder shrug against resistance.
How is the Hypoglossal nerve assessed?
By asking the patient to stick out their tongue.
What is the mnemonic to remember the order of cranial nerves?
Oh, Oh, Oh, To Touch And Feel Very Green Vegetables, AH.
Which cranial nerve is purely sensory?
Olfactory and Optic nerves.
Fill in the blank: The ___ nerve is responsible for the sense of taste from the anterior two-thirds of the tongue.
Facial.
What cranial nerve is associated with the sense of balance?
Vestibulocochlear nerve.
True or False: The Trigeminal nerve has both sensory and motor functions.
True.
What is a function of the Vagus nerve that is not related to the heart?
Regulating digestive tract activity.
Which cranial nerve can influence speech and swallowing?
Vagus nerve.
How many cranial nerves are primarily motor?
Five (Oculomotor, Trochlear, Abducens, Accessory, and Hypoglossal).
What does ‘CN’ stand for in the context of cranial nerves?
Cranial Nerve.
Fill in the blank: The ___ nerve is primarily responsible for facial expressions.
Facial.
What cranial nerve is tested using the Rinne and Weber tests?
Vestibulocochlear nerve.
Which cranial nerve is responsible for sensations from the throat?
Glossopharyngeal nerve.
What is the function of the Trochlear nerve?
Innervates the superior oblique muscle of the eye.
True or False: The Accessory nerve is also known as the spinal accessory nerve.
True.
