 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
senses
The media through which stimuli in the environment of an organism act on it (external senses); also, the internal senses which report on the internal state of the organism (through thirst and hunger, pain, etc). The organs of sense, the eye, ear, skin, etc., all contain specialized cells and nerve endings which communicate with centers in the nervous system. Sense organs my be stimulated by pressure (in touch, hearing, and balance), chemical stimulation (smell and taste), or electromagnetic radiation (vision; heat sensors).
Related category
• ANATOMY AND PHYSIOLOGYAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History