Pharynx

Q. Which of the following cartilages connects the epiglottis to the arytenoid cartilage?

1. Cuneiform cartilage
2. Cricoid cartilage
3. Thyroid cartilage
4. Corniculate cartilage

Q. A rod of negligible heat capacity has length 20 cm, area of cross- section $1.0c{m}^2$ and thermal conductivity $200W/m^{\circ }C$. The temperature of one end is maintained at $0^{\circ }C$ and that of the other end is slowly and linearly varied from $0^{\circ }C$ to ${60}^{\circ }C$ in 10 minutes. Assuming no loss of heat through the sides find the total heat transmitted through the rod in these 10 minutes.

1. 1800 J
2. 2000 J
3. 2200 J
4. 2400 J

Q. Assertion: The food can’t enter into the nasal chamber during swallowing.
Reason: The glottis is closed by the epiglottis during the swallowing of food.

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