Endocrine System

- regulates the activities of the body through hormones.

• Hormones that act upon target cells are produced in the endocrine glands.
• The negative feedback mechanism is a process by which the endocrine system controls itself.
• Eyes are the sense organs of sight. Impulses travel along the optic nerve to the brain to process the object seen.
• The ear is the organ used for hearing and balance. Impulse's travel along auditory nerve to the brain that interprets them as a sound.
• The nose is the sense organ of smell. Impulse's travel along the factory to the brain to identify the scent.
• The tongue is the sense organ of taste. The chemical receptors for taste are the taste buds. The four kinds of taste sensations are sweet, sour, bitter and salty.
• The skin is considered the organ of touch. The five distinct sense's of skin with their own type of receptors.