Human Anatomy (9th Edition)
Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Chapter 24, Problem 8RFT
Summary Introduction

To review:

Match the term lobar bronchi with the most closely related description given below:

Superior portion of the pharynx

Bridge of the nose

Nose, nasal cavity, paranasal sinuses, nasal conchae, and nasopharynx

Windpipe

Lobar bronchi

Contains and protects the glottis

Larynx, trachea, bronchi, bronchioles, and alveoli of the lungs

Provide protection for the vocal folds

Positions and stabilizes the larynx

Segmental bronchi

Introduction:

Bronchi refer to the main pathway for the air to enter into the lungs. They become narrower and shorter as they get near to the lung tissue. Once they enter lungs, they are regarded as bronchioles. These bronchioles then evolve into the alveoli. Alveoli are tiny airbags and it is labeled as the primary site of gas exchange in the respiratory system.

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Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort? (a) One can breathe out air totally without oxygen. (b) One can breathe out air through Eustachian tube by closing both nose and mouth. (c) One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all. (d) The lungs can be made fully empty by forcefully breathing out all air from them. (Mains 2011)
Under ordinary circumstances, the inflation reflex is initiated by (a) noxious chemicals, (b) the ventral respiratory group, (c) overinflation of the alveoli and bronchioles, (d) the pontine respiratory centers.
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