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Cranial nerves

CN#NameFunction
I Olfactory nerve Smell
II Optic nerve Vision. Afferent
III Ocular motor nerve Eye movement. Pupil constriction. Efferent
IV Trochlear nerve Eye movement
V Trigeminal nerve Somatosensory information (touch, pain) from the face and head; muscles for chewing.
VI Abducens nerve Eye movement
VII Facial nerve Taste (anterior 2/3 of tongue); somatosensory information from ear; controls muscles used in facial expression.
VIII Vestibulocochlear Nerve. Auditory Hearing. Balance
IX Glossopharyngeal Nerve Taste (posterior 1/3 of tongue); Somatosensory information from tongue, tonsil, pharynx; controls some muscles used in swallowing. Gag reflex
X Vagus nerve Sensory, motor and autonomic functions of viscera (glands, digestion, heart rate). Gag reflex. Motor to chest and abdominal organs
XI Spinal accessory nerve Controls muscles used in head movement. Shrugging shoulders.
XII Hypoglossal nerve Controls muscles of the tongue
Patient comes in complaining of headache. During neurological exam, you shine the penlight into this patient’s eyes, and observed her pupil contract. Which cranial nerve is responsible for the Afferent effect? CN 2
Patient comes in complaining of headache. During neurological exam, you shine the penlight into this patient’s eyes, and observed her pupil contract. Which cranial nerve is responsible for the Efferent effect? CN 3
Which cranial nerves are being tested during the “H”-test? CN 3,4,6
Using cotton to access the sensation on a patient’s face, which cranial nerve is being tested? CN 5
A patient cannot hear well in his left ear and cannot keep his balance when asked to walk a straight line. Which cranial nerve is most likely damaged? CN 8
Which TWO cranial nerves are responsible for the Gag reflex? CN 9 & 10
When asked to shrug both shoulder, the patient is unable to shrug her right shoulder. Which cranial nerve is most likely damaged? CN 11
When a male patient is asked to stick out his tongue, you observed that his tongue is deviated or pointed to the right. Which cranial nerve is damaged? CN 12
Patient comes in complaining of numbness and tingling sensation of the palmer side of her first 3 digits and half of the 4th digit on the left hand. Which nerve is being affected? MEDIAL NERVE
When asking the patient to smell vanilla versus chocolate, you are accessing CN 1
When brushing a cotton swab on patient’s face to access for sensation, you are accessing CN 5
When asking the patient to show her teeth or smile, you are accessing CN 7
Performing the Rinne’s and Weber’s test on a patient with a tuning fork, you are accessing CN 8
When asking the patient to shrug his shoulders, you are accessing CN 11
When asking the patient to stick out her tongue, you are accessing CN 12
Which cranial nerve is responsible for motor to parotid gland CN 9
Which cranial nerve is responsible for motor to stomach CN 10
Damage to which part of the nervous system will lead to bitemporal hemianopia? OPTIC CHIASM
Spinal accessory nerve is responsible for the motor of which muscle(s)? Trapezius and sternocleidomastoid
Created by: Jkellycal
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