/
Sense of Taste Taste Buds Sense of Taste Taste Buds

Sense of Taste Taste Buds - PowerPoint Presentation

oconnor
oconnor . @oconnor
Follow
349 views
Uploaded On 2022-06-15

Sense of Taste Taste Buds - PPT Presentation

Special organs of taste Approximately 10000 on surface of tongue 1000 scattered in the roof of mouth and walls of throat Associated with Papillae Tiny elevations on tongue Taste Receptors Taste Cells ID: 919817

tongue taste buds cells taste tongue cells buds types primary sensory sensation gustatory receptor specific receptors sensations nerve food

Share:

Link:

Embed:

Download Presentation from below link

Download Presentation The PPT/PDF document "Sense of Taste Taste Buds" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.


Presentation Transcript

Slide1

Sense of Taste

Slide2

Taste Buds

Special organs of taste

Approximately 10,000 on surface of tongue

1,000 scattered in the roof of mouth and walls of throatAssociated with PapillaeTiny elevations on tongue

Slide3

Taste Receptors

Taste Cells

50-150 on each taste bud

AKA Gustatory cellsReplaced on avg. every 10 days

Taste PoreOpening to taste cellsTaste HairsTiny projections that protrude from the outer ends of taste cellsMost sensitive partsNetwork of nerve fibers interwoven around taste cells

Slide4

Chemoreceptors

Salivary

Glands

Produce water fluid surrounding taste cells that chemicals must dissolve in in order for the taste to be tasted.Food molecules bind to specific receptor proteins embedded in taste hairs

Pattern of receptor types stimulated generates sensory impulsesAll taste cells in all taste buds appear alike microscopically but 5 specific types of buds.

Slide5

Taste Sensations

5 Primary Tastes

Sweet-tip of tongue

Table sugarSour-sides of tongue

LemonSalty-all over tongueTable saltBitter-back of tongueCaffeineUmami (Japanese term meaning delicious)Anything that you think is deliciousOthers not believe by all scientists:

Alkaline-like bitter (Coffee)

Metallic-metal fork, tinfoil

Slide6

Taste Sensation Cont.

Flavor results from one or more combinations of primary sensations

Also includes: smelling, feeling texture, and temperature

Pain ReceptorStimulated by chili peppers, ginger etc.Taste Cells respond to one sensation and are found throughout tongue

Most strong in certain regions

Slide7

Adaption

Like smell, taste adapts rapidly

Moving food all over surface of tongue stimulates different receptors preventing taste loss through sensory adaption.

Slide8

Nerve Pathways

Cranial Nerves

Facial

Glossopharyngeal VagusFlow to Medulla Oblongta

Then Ascend to Thalamus and further to gustatory cortex in parietal lobe.

Slide9

Interesting Fact

Cats and dogs may be satisfied with less varied diets than humans because cats have only 473 taste buds and dogs about 1,700.