Redox 8 Oxidation Number Method (Oxidation State Method) another method when you do not divide into half reactions Charge and mass both must be balanced 1. Determine oxidation number of atoms to see which ones are changing 2. Put in coefficients so no net change in oxidation number 3.
Previous Chapter: Next Chapter: The corneal reflex is usually tested after the pupils, but the cranial nerves involved are out of order. The afferent arc is mediated by the nasociliary branch of the ophthalmic branch (Vi) of the trigeminal or 5th cranial nerve, and the efferent arc is the seventh (facial) nerve.
The cornea has unmyelinated nerve endings sensitive to touch, temperature and chemicals; a touch of the cornea causes an involuntary reflex to close the eyelid. Because transparency is of prime importance, the cornea does not have blood vessels. Instead, oxygen dissolves in tears and then diffuses throughout the cornea to keep it healthy.