Advertisements
Advertisements
Question
Use your brain power!
Why do we sometimes choke suddenly while eating?
Solution
The upper ends of both the esophagus and the trachea open in the throat next to each other; there is a flap that covers the trachea. When the food is swallowed, the trachea remains closed. But if we eat in a hurry, the food enters the trachea. This causes choking. But due to coordination of the brain, we immediately start coughing, and the food particles are expelled out of the trachea.
RELATED QUESTIONS
Define the following term:
Kilocalorie
Study the diagram given below and then answer the question that follows:
Describe the structure of the part labelled '3'.
Write one function each of the following enzymes:
Pepsin
Fill in the blank.
The _______ are used for tearing the food.
Rewrite the following parts of the human alimentary canal in their correct sequence Stomach, Oesophagus, Large instestine, Small intestine, Pharynx.
Write short answers
Define homodont dentition.
Describe the digestion of starch.
Read carefully the terms given below. Which of the following set is the correct combination of organs that do not carry out any digestive functions?
Label the following parts in Figure 2.2 and name them.
- The largest gland in our body.
- The organ where protein digestion starts.
- The organ that releases digestive juice into the small intestine.
- The organ where bile juice gets stored.
What is a vermiform appendix?
