The dental formula of a human adult is:
1. 2102/2012 2. 2103/2103
3. 2123/2123 4. 2132/2132
Subtopic:  Alimentary Canal: Oral Cavity & Teeth |
 93%
From NCERT
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Our teeth are
1. Acrodont and homodont
2. Homodont and polyphyodont
3. Thecodont, diphyodont and heterodont
4. Acrodont, homodont and polyphyodont

Subtopic:  Alimentary Canal: Oral Cavity & Teeth |
 95%
From NCERT
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Which of the following is connected to the floor of the oral cavity by the frenulum?

1. oesophagus 2. muscles of mastication
3. lips 4. tongue
Subtopic:  Alimentary Canal: Oral Cavity & Teeth |
 90%
From NCERT
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Identify A, B, C and D in the given diagram of human tooth:
  
A B C D
1. Enamel Dentin Pulp Cementum
2. Dentin Enamel Pulp Cementum
3. Cementum Dentin Pulp Enamel
4. Enamel Pulp Dentin Cementum
Subtopic:  Alimentary Canal: Oral Cavity & Teeth |
 82%
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During swallowing [deglutition], the food is prevented from entering into the glottis by:
1. epiglottis 2. uvula
3. frenulum 4. adenoids
Subtopic:  Alimentary Canal: Oral Cavity & Teeth |
 96%
From NCERT
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What regulates the opening of oesophagus into the stomach?
1. A membranous valve
2. A muscular sphincter
3. A mesodermal septum
4. A cartilaginous flap

Subtopic:  Swallowing: Histology of Gut | Movement of Food in Gut |
 87%
From NCERT
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The anatomic region of the stomach where the oesophagus opens into is:
1. cardiac
2. pyloric
3. fundus
4. corpus

Subtopic:  Peristalsis: Gland in Alimentary Canal |
 65%
From NCERT
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Series of ridges produced by folding of the wall of an organ such as seen in the stomach are called:
1. taenia coli
2. rugae
3. plicae circulares
4. crypts

Subtopic:  Histology of Gut |
 85%
From NCERT
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The opening of the stomach into the duodenum is guarded by:
1. Cardiac sphincter
2. Sphincter of Oddi
3. Pyloric sphincter
4. Ileocaecal sphincter

Subtopic:  Alimentary Canal: Oral Cavity & Teeth | Histology of Gut | Movement of Food in Gut |
 79%
From NCERT
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Assertion: In animals, chemical digestion is necessary.
Reason: Mechanical digestion, typically, precedes chemical digestion, increasing the surface area for chemical digestion.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Introduction to Digestive System |
 57%
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