Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of
- epiglottis
- diaphragm
- neck
- tongue
The Correct Option is A
Solution and Explanation
Top Questions on Parts of the digestive system
- The walls of the food pipe secrete a slippery substance called:
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- In the mouth, the crushed food mixed with saliva which forms a slippery lump is called?
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Questions Asked in NEET exam
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A typical unfertilized, angiosperm embryo sac at maturity is 8-nucleate and 7-celled.
Reason (R): The egg apparatus has 2 polar nuclei.In the light of the above statements, choose the correct answer from the options given below:
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- A ball of mass 0.5 kg is dropped from a height of 10 m. The ball hits the ground and rises to a height of 1.5 m. The impulse imparted to the ball during its collision with the ground is : (Take \(g = 9.8 \, \text{m/s}^2\))
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- Consider the diameter of a spherical object being measured with the help of a Vernier Callipers. Suppose its 10 Vernier Scale Divisions (V.S.D.) are equal to its 9 Main Scale Divisions (M.S.D.). The least count in the M.S. is 0.1 cm and the zero of V.S. is at -0.1 cm when the jaws of Vernier callipers are closed. If the main scale reading for the diameter is \(M = 5\) cm and the number of coinciding vernier division is 8, the measured diameter after zero error correction, is:
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- A container has two chambers of volumes \(V_1 = 2\) litres and \(V_2 = 3\) litres separated by a partition made of a thermal insulator. The chambers contain \(n_1 = 2\) moles and \(n_2 = 3\) moles of ideal gas at pressures \(p_1 = 1\) atm and \(p_2 = 2\) atm, respectively. When the partition is removed, the mixture attains an equilibrium pressure of :
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A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
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Concepts Used:
Parts of the digestive system - Villi
Human Digestive System is the collection of organs that are responsible for digestion. It is a vital process that is driving the human race. The digestive system includes a digestive tract, which connects organs from the mouth to the large intestine.
Small Intestine
The Small intestine is an organ situated in the gastrointestinal tract where the food nutrients are absorbed completely. There is complete digestion of fats, proteins, and carbohydrates in the small intestine. It is the longest part of the alimentary canal ranging from 6 to 7.5 m. The small intestine of the human body is made up of three sections:
- Duodenum: It occurs in between the small intestine and jejunum.
- Jejunum: It is the second part of the small intestine. It is located in between the duodenum and ileum. There is the cell lining in the jejunum which is responsible for the absorption of nutrients. In this process, the surface area of the small intestine gradually increases because of the "villi". The villi are finger-like projections. Its function is to absorb some of the dietary nutrients such as amino acids, fatty acids, and sugars.
- Ileum: It is the third or the last part of the small intestine in the digestive system. It further opens into the large intestine.