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Explain the Processes Involved in Light and Dark Adaptation

question 99

Essay

Explain the processes involved in light and dark adaptation. Also, describe the process by which an afterimage is created.


Definitions:

Antihistamine

A type of medication that blocks histamine receptors to relieve allergies symptoms.

Decongestant

A medication that relieves nasal congestion by reducing swelling of the nasal passages.

Antitussive

A type of drug that helps to reduce coughing, commonly used in the treatment of coughs caused by the common cold or flu.

Expectorant

A type of medication that helps clear mucus and other secretions from the airways, chest, and throat.

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