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Digestion and Absorption 2
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It's the second lecture on Digestion and absorption. Salivary Gland and Teeth have been discussed. Tune in to learn and revise and clarify with fun.

Pranav Pundarik
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Unacademy user
hum sawan kumar bihar se hai hum english read learling
Shambhavi Pandey
3 months ago
Mere lessons dekhiye, learning
Shambhavi Pandey
3 months ago
Apki English definitely achi ho jayegi agr sare lessons ap dekhenge to ......
Diastema is toothless are b/w (a) right and left incisors (b) incisors and molars (c) premolars and molars (d) behind molars it's surely not (d) and (b) but iam confused b/w (a) and (c)
I had a question

  1. Ecto-Mesodermal in origin Attached to maxitla and mandible bone . Natural space between two teeth is DIASJMi

  2. Some important terma: *Dentition: Arrangement of teeth on jaws. **Dentition tybes: > >Monolphyodont ( Jeeth whic appear only once in a life) (Premolar8 and last molar) > Diphyodont (Appear twice in life) (Ancisors, canines, and first two molars) > >Thecodont : (Jeeth are present in bony socket in jaw) (sAs in us) Heterodont: (Specific teeth for specific function)

  3. Incisors: For gnawing the food. Long. . Canines : $ arp. Jea ring. Absent in erbivores. . Pre molars: Chewing and Grushing. Molars: Chewing and crushing of food. *xpre molars and molars, together help in mastication of food.

  4. Tor a child: 2402/2402 Totat teeth number: 20) gor a 17 year old: 2122/2/122 (Total teeth number: 28) For an Adult: 2123/2128 (Jotal teeth number 82)

  5. . The white part ia called the 8NMBB. Enamel 18 the hardest material. Enamel i8 ectodermal in origin. Secreted by efiM8B0BBofSJC8BB; . All other tooth parts are Mesodermal in origin. . DENJINE : Just below enamel. Surrounded by a pulp cavity. Bined by Dentine secreting cells-0DONJ0BBASJ Cells. 7

  6. Three pairs of Salivary glands are there 2. Submandibular (or Submaxillary) . 3. Sublingual ;ecrete Salivary amylase and lysozyme(=-Saliva). .

  7. PAROTID 3BoAND . In cheeks. (Near Bar) . Bargest in size. . Contributes to nearly 25% of 8aliva 8ecreted.

  8. SUBMANDIBULAR GLAND . Submaxillary Gland . At junction of jaws contributes to nearly 70% of saliva secreted.(Maximum secretion) . DUCT : Wharton's Duct (Longest Salivary Duct)

  9. . Saliva: 99.5% H20, . Salivary Amylase also called as Ptyalin. . ptyalin maximally secreted by peAROJ1DS . Wrea and uric acid (Very small amount) atso secreted