THE CHEMICAL SENSES

SMELL AND TASTE

• Has an important role in human behavior.

• Contributes “flavor” to foods.• Detects an odor.• Strongly associated with memories.• Key factor in tasting food.

• A sample of molecules of a substance in the air.

• Complex quality of food based on odor taste etc.

• Also called as “olfactory perception”• Sense of smell• Occurs when odorant molecules bind

to specific sites on the olfactory receptors.

OLFACTORY EPITHELIUM• The “retina” of the nose

• Samples molecules of a substance.

• Sensed through taste cells.• One of the traditional five

senses.• Detects flavor of substances.

Taste Buds and Taste Cells

• Sensory organs for taste.

• Contains taste cells.

• Receptor cells that are sensitive to taste.

Umami• Japanese word meaning “a savory taste”

• One of the 5 basic tastes

• Pronounced as oohmommy

THE SKIN SENSES

• TOUCH & PRESSURE• TEMPERATURE

• PAIN

-> indicates how hot or cold the body is.

• A sensation that an amputated or missing limb (even an organ, like the appendix) is still attached to the body and is moving appropriately with other body parts.

Amputation

• is the removal of a body extremity by trauma, prolonged constriction, or surgery.

KINESTHESIS AND

VESTIBULAR SENSE

• Provides information about movements posture and orientation

• Provides information about balance and movement.