Tongue parts and functions pdf
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- Structure of Tongue: Introduction, Functions of Tongue, Parts and Elements of the Tongue
- Anatomy and Physiology: The Terrific Tongue
- Parts of the Tongue and Their Function
The mouth is lined by stratified squamous epithelium, from which oral smears may be taken for chromosomal studies. The temperature in the mouth is about 37 degrees C. Mouth-to-mouth and mouth-to-nose are important methods of artificial respiration.
Structure of Tongue: Introduction, Functions of Tongue, Parts and Elements of the Tongue
It does not have any bones. It is reddish-pink in color. The main function of tongue is taste, help in chewing food, in swallowing food and speech.
Papillae: Granular projection on the upper side of the tongue is known as papillae. There are four types of papillae there, o Filiform thread shaped o Fungiform mushroom shaped o Foliate leaf shaped o Vallate ringed shaped Sulcus terminalis Tonsils: They are present at the back of the tongue.
There are two types of tongue, o Lingual tonsils o Palatine tonsils Adenoids Frenulum linguae: It is present on the under surface of the tongue. Papillae: Papillae contains taste bud chemo-receptors , which helps us identify between different tastes of food.
When we chew food, a portion of it dissolves in the saliva. This dissolved part of food comes in contact with the taste buds and generates nerve impulses. These nerve fibres are known as microvilli. These nerve fibres carry messages to the taste center in the brain.
Then brain perceives the taste. Adenoids: They help in fighting infections. Frenulum linguae: It secures or holds the tongue in place inside the mouth. Very small fibre-like or hair-like projections are present on the upper side of the tongue which connect with nerve fibres at the lower end of the tongue which lead to the brain.
There are about taste buds on the tongue of an adult person. There are four main tastes sweet, salty, sour and bitter. These four main tastes are felt by different portion of the tongue.
The tip of our tongue senses salt and sweet. The taste buds at the sides detect sour taste. The rear portion of the tongue detect bitter taste. Open navigation menu. Close suggestions Search Search. User Settings. Skip carousel. Carousel Previous.
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Search inside document. Parts of the Tongue and their Function Introduction to Parts of the Tounge and their Function Tongue is located inside the mouth and is an important muscle. Function of each Part of the Tongue y y y y y Papillae: Papillae contains taste bud chemo-receptors , which helps us identify between different tastes of food. Faty Villaflor. Philip Terry. John Michael Parco. Nath Villena. Reduan Ibrahim. Toto Canong. Ateneo De Davao Comelec.
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Anatomy and Physiology: The Terrific Tongue
If you need a non-tongue example, think elephant trunks and octopus tentacles. Octopuses, slugs, and the roundworm C. Cool, right? Image from Human Anatomy Atlas. The root of the tongue is connected to the hyoid bone via the hyoglossus and genioglossus muscles as well as the hyoglossal membrane. The body of the tongue contains both extrinsic and intrinsic muscles more on those in a second. The apex of the tongue is the bit at the end that makes contact with the teeth.
The tongue map or taste map is a common misconception that different sections of the tongue are exclusively responsible for different basic tastes. It is illustrated with a schematic map of the tongue, with certain parts of the tongue labeled for each taste. Although widely taught in schools, this has been scientifically disproved by later research; all taste sensations come from all regions of the tongue, although different parts are more sensitive to certain tastes. The theory behind this map originated from a paper written by Harvard psychologist Dirk P. The paper showed minute differences in threshold detection levels across the tongue,  but these differences were later taken out of context and the minute difference in threshold sensitivity was misconstrued in textbooks as a difference in sensation. While some parts of the tongue may be able to detect a taste before the others do, all parts are equally capable of conveying the qualia of all tastes. Threshold sensitivity may differ across the tongue, but intensity of sensation does not.
Parts of the Tongue and Their Function
Though the tongue may seem like a simple organ, it has a wide range of purposes, such as licking, breathing, tasting, swallowing and articulating speech. Its many talents are due to the construction of the tongue. Typically a human tongue is around 3.
До апельсиновых деревьев не меньше ста метров. Никаких шансов. Боль в боку усилилась. Сверху слышался гулкий звук шагов, спешащих вниз по лестнице. Беккер закрыл глаза, стиснул зубы и подтянулся. Камень рвал кожу на запястьях.
Слушаю, Джабба. Металлический голос Джаббы заполнил комнату: - Мидж, я в главном банке данных. У нас тут творятся довольно странные вещи. Я хотел спросить… - Черт тебя дери, Джабба! - воскликнула Мидж. - Именно это я и пыталась тебе втолковать.
Он начал подписывать свои записки Любовь без воска, Дэвид. Таких посланий она получила больше двух десятков. И все был подписаны одинаково: Любовь без воска.