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Introduction to Breathing

The inner lin...

Question

The inner lining of the trachea have ciliated epithelium to remove the unwanted particles that may be present in inhaled air.

A. True

B. False

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Solution

Ans. Option A

Cilia helps to remove the unwanted particles that may be present in inhaled air.

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Q. Assertion: Ciliated epithelium is present in the inner lining of trachea and large bronchi.
Reason: Ciliary movement propels the mucus and foreign particles towards the larynx.

Q. Match the following epithelial tissue with their function.

\begin{matrix} C o l u m n I & C o l u m n I I A . S q u a m o u s e p i t h e l i u m & 1. R e m o v e u n w a n t e d s u b s t a n c e s B . C o l u m n a r e p i t h e l i u m & 2. P r o v i d e a b s o r p t i o n C . C u b o i d a l e p i t h e l i u m & 3. P r o v i d e s e c r e t i o n D . C i l i a t e d e p i t h e l i u m & 4. P r o v i d e p r o t e c t i o n \end{matrix}

Q. diff between ciliated epithelium and pseudostratified ciliated epithelium because both are found in respiratory track i.e. trachea

Q. Which of the following is/are false about columnar epithelium?

I. It is made of tall and cylindrical cells.
II. Free surface may have microvilli.
III. They are found in stomach and intestine and help in secretion and absorption.
IV. Ciliated epithelium is mainly present in hollow structures like bronchioles and fallopian tube/oviducts.
V. They have apical nuclei.

Which of the following statement is false with respect to ciliated epithelium?

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