NEET PG DENTAL EXAM

Detailed explanation-1: -The nasal retinal fibers relay sensory information from the temporal visual field of the corresponding eye. The temporal retinal fibers relay sensory information from the nasal visual field of the corresponding eye. Therefore, the optic tracts relay sensory information from the contralateral visual fields.

Detailed explanation-2: -optic nerve, second cranial nerve, which carries sensory nerve impulses from the more than one million ganglion cells of the retina toward the visual centres in the brain. The vast majority of optic nerve fibres convey information regarding central vision.

Detailed explanation-3: -The optic nerve is composed of retinal ganglion cell axons and glia. Each human optic nerve contains between 770, 000 and 1.7 million nerve fibers, which are axons of the retinal ganglion cells of one retina.

Detailed explanation-4: -Six cranial nerves innervate motor, sensory, and autonomic structures in the eyes. The six cranial nerves are the optic nerve (CN II), oculomotor nerve (CN III), trochlear nerve (CN IV), trigeminal nerve (CN V), abducens nerve (CN VI), and facial nerve (CN VII).