CRANIAL NERVES: CNIM PRACTICE EXAM 2023

Sensory - Answer- CN I, II, VIII are considered to be: 1 Motor 2 Sensory 3 Both 4 Proprioceptive Only Motor - Answer- CN III, Iv, VI, XI, XII are considered to be: 1 Motor 2 Sensory 3 Both 4 Spinothalamic Mixed motor and sensory - Answer- CN V, VII, IX, X are considered to be: 1 Motor 2 Sensory 3 Mixed motor and sensory 4 Mixed proprioceptive and sensory Optic - Answer- This CN controls eye movement, constricts pupils, and innervates the extraoccular muscles (superior, inferior, medial rectus muscles, and inferior oblique) 1 Optic 2 Oculomotor 3 Trochlear 4 Abducens Olfactory - Answer- This CN is responsible for the sensation of smell. 1 Glossopharyngeal 2 Trigeminal 3 Vagus 4 Olfactory Facial - Answer- This CN innervates the taste buds at the anterior 2/3 of the tongue, salivary glands, and the muscles of facial expression. 1 Vestibulocochlear 2 Abducens 3 Facial 4 Trochlear Abducens - Answer- This CN controls eye movement outward via the lateral rectus muscle: 1 Trochlear 2 Optic 3 Oculomotor 4 Abducens Vagus - Answer- This CN moves the soft palate, larynx, pharynx, innervates the heart, digestive tract, smooth muscle, and senses aortic blood pressure. 1 Hypoglossal 2 Vagus 3 Trigeminal 4 Trochlear Trigeminal - Answer- This CN is responsible for the sensations of pain, temp, and touch to the face and head. Also controls the motor muscles responsible for mastication. 1 Trigeminal 2 Vagus 3 Trochlear 4 Spinal Accessory Vestibulocochlear - Answer- This CN is responsible for the sensation of hearing and balance. 1 Hypoglossal 2 Trochlear 3 Spinal Accessory 4 Vestibulocochlear Glossopharyngeal - Answer- This CN is responsible for sensation of the tongue, skin of the ear, and taste in the posterior 1/3 tongue, salivation, the gag reflex, and senses carotid blood pressure. 1 Hypoglossal 2 Trochlear 3 Glossopharyngeal 4 Spinal Accessory Optic - Answer- This CN is responsible for the sensation of vision. 1 Oculomotor 2 Trochlear 3 Abducens 4 Optic Spinal Accessory - Answer- This CN is responsible for the motor innervation of the muscles that move the head and shoulders. 1 Trochlear 2 Spinal Accessory 3 Hypoglossal 4 Trigeminal Trochlear - Answer- This CN is responsible for motor eye movement of the superior oblique which moves the eye downward and in. 1 Trochlear 2 Abducens 3 Hypoglossal 4 Abducens Hypoglossal - Answer- This CN is responsible for movement of the tongue. 1 Trigeminal 2 Trochlear 3 Hypoglossal 4 Glossopharyngeal Cerebrum and diencephalon - Answer- CN I and II originate at what level of the brain/brainstem? 1 Cortex 2 Cerebrum and Diencephalon 3 Pons 4 Medulla Midbrain - Answer- CN III and IV originate at what level of the brain/brainstem? 1 Midbrain 2 Pons 3 Medulla 4 Cerebrum Pons - Answer- CN V, VI, VII originate at what level of the brain/brainstem? 1 Medulla 2 Pons 3 Spinal cord 4 Midbrain Medulla - Answer- CN VIII, IX, X, XI, and XII originate at what level of the brain/brainstem? 1 Midbrain