Taste
When molecules enter the mouth and stimulate receptors on the tongue
Olfaction
When air-borne molecules enter the nose and stimulate receptors in the olfactory mucosa
Flavour
The impression we experience form the combination of taste and smell
Neurogenesis
Happens a lot for olfactory and taste receptors
5 Taste Qualities
Sour, Salty, Sweet, Bitter, Umami
Anosmia
Loss of sense of taste
Sweetness
Substances that have high nutritive value
Bitterness
Substances that are potentially harmful
Salty
Presence of sodium for action potentials
Papillae
The structures that give the tongue its rough appearance
Types of Papillae
Filiform, Fungiform, Foliate, Circumviliate
Filiform
Shaped like cones, located over entire surface
Fungiform
Shaped like mushroom and found on sides and tip
Foliate
Series of fold on back and sides
Circumviliate
Shaped like flat mounds in a trench located at back
Tongue
The receptor sheet for taste
Taste Buds
Contained on the papillae, 10,000 of them
Taste Cells
Cells that make up taste buds
Chorda Tympani Nerve
From front and sides of tongue
Glossopharyngeal Nerve
From back of tongue
Vagus Nerve
From mouth and throat
Superficial Petronasal Nerve
From soft palate
Nucleus of the Solitary
In the spinal cord
Macrosmatic
Having a keen sense of smell that is necessary for survival
