Neuroanatomy and Sensory Physiology

Yes, it is correct. The polyribosomes and rough endoplasmic reticulum turn dark blue with hematoxylin due to the presence of ribonucleic acids. Thus, the cytoplasm of large neurons turns dark blue due to hematoxylin staining on it.

Yes, it is correct. Glial fibrillary acid protein (GFAP) is a specific intermediate filament protein.

Yes, it is correct. The vestibulocochlear nerve (VIII) contains auditory and vestibular special sensory axons, but does not contain general sensory axons.

Yes, it is correct. The oculomotor nerve (III) supplies four of the six extraocular muscles.

Yes, it is correct. The cornea is the transparent front part of the eye that covers the iris, pupil and anterior chamber. It is avascular.

Yes, it is correct. Graves' ophthalmopathy due to thyrotoxicosis does not involve the uveal tract.

Yes, it is correct. The superior olive is responsible for sound localisation based on the amount of time it takes the neural signals from the right and left ear to reach specific nuclei in the superior olivary complex.

Yes, it is correct. The cerebellum and the motor cortical areas (areas 4 and 6) are involved in the tactical level of motor control.

The foot processes of astrocytes and type 1 capillary cells contribute to the blood-brain barrier limiting the transport of materials into the central nervous system.

Yes, it is correct. A major loss of cerebellar function will lead to ataxia, the inability of a patient to walk normally. Most patients will have wide gaits and unsteady movements.

Yes, it is correct. The loss of dopamine input from the substantia nigra to the striatum produces an imbalance in the indirect pathway versus the direct pathway of basal ganglia regulation. 

Yes, it is correct. The trochlear nerve (IV) is the only cranial nerve to exit from the posterior surface of the brainstem. It innervates the superior oblique muscle.

The inferior colliculus is a relay nucleus for hearing located in the tectum of the midbrain. The cochlear nuclei send axons through the lateral lemniscus to reach the inferior colliculus. Axons from the colliculus travel to the medial geniculate.

Yes, it is correct. The oculomotor nerve (III) is closely associated with the cerebral peduncles. A stroke in this region can produce losses in both structures (superior alternating hemiplegia or Weber's syndrome).

Yes, it is correct. The internal capsule contains contralateral descending upper motor axons from the cortex to the brainstem and spinal cord (corticospinal, corticobulbar and corticopontine tracts). It also contains contralateral third or fourth order sensory axons from the thalamus to the cortex that carry general sensation (fine touch, proprioception, pain and temperature). The internal capsule does not contain axons for the special sensations of vision or hearing.

Yes, it is correct. The rostral nucleus solitarius (gustatory nucleus) contains the second order cell bodies for taste sensation from the facial nerve (VII) (chorda tympani), glossopharyngeal nerve (IX) and the vagus nerve (X).

Yes, it is correct. The posterior commissure is a small white matter tract that interconnects the two cerebral hemispheres. It has no direct connections with the hypothalamus.

Yes, it is correct. The area postrema is found adjacent to the dorsal motor nucleus of the vagus nerve in the posterior aspect of medulla oblongata next to the fourth ventricle. It functions as an emetic centre, sensing toxins and initiating vomiting to help remove the toxins from the gastrointestinal system.

Yes, it is correct. The mitral cells are the primary output pathway from the olfactory bulb. They project into the other olfactory bulb and into the brain.

Yes, it is correct. The neuroepithelial hair cell is used by both the auditory system (in the organ of Corti) and in the vestibular system (in the crista ampullaris and the macula). The stereocilia on these cells are deflected by fluid motion and produce action potentials, which are relayed to specific bipolar neurons.