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Flashcards in Taste Deck (20)
1

Taste sense are is under what sense

Chemosensory receptors there are five primary sense of tastes umam, sweet, sour, bitte, salty

2

Tasting involves the

Combination of all the number of the receptors that are stimulated

3

Acid in food give off the

Sour taste

4

Salty tastes

Is due to positive ions like Na Ca

5

Sweet taste is

Group of organic substance like aldehyde, ketones, ester, sugars in food

6

Foods that contain nitrogen, alcolody, nicotine

Give off the bitter taste

7

Glutamate is associated with

Umami

8

For the substance in the mouth to make contact with receptor

The substance must be dissolved in water or saliva

9

Taste bud

Contain the receptor or house the receptor

10

The taste bud

Are house in large papillae on tongue, has fungi form circumvallate form , and foliate form

11

Gustatory cell

Where the receptor for taste are located on the microvilli named gustatory cell, which is synaptically linked to nerves fiber , sensory fiber, cranial nerve where signal is carried to the sensory cortex partial lobe for interpretation.....and this are not fixed they're placed

12

Sustentacular cells

These are supportive cells and anchoring cells, these hold the gustatory cell in place to maximize their exposure to the substance. These are specialized for various chemoreceptors

13

Describe the signal transduction of salt and sour

The chemical will bind to its receptor, which will lead to ionization effect, ionotropic causes a channel to open that are previously closed of Na or hydrogen, and pumps Na out thus causing depolarization of the cell causing the influx of ca to have a voltage effect of ca, ca acts a secondary messenger trigger excocytosis of serotonin and the signal is carried away by cranial fiber

14

The neurotransmitter release for umami is

ATP

15

Describe the sweet and bitter transduction

The stimulant bind with a G protein called gusducin similar to transducin which leads to the activation of the secondary messenger cAMP and IP3 that can trigger the elevation of ca, where the the SER release more ca causing the release of neurotransmitter thus depolarization the cranial nerve depending on the side of the tongue

16

Cranial nerve 7

Front of the tongue (facial)

17

Cranial nerve 9

Back of the tongue glosopharingia

18

Cranial nerve 10

Vagus base of the tongue

19

Cranial nerve 7, 9,10 house

The afferent fiber

20

Taste preference

It is base on need and experience and it is controlled by the nervous system