Question

Birds have more efficient lungs than humans because the flow of air in birds a. is the same during both inspiration and expiration. b. travels in only one direction through the lungs. c. follows a tidal ventilation pattern. d. is not hindered by a larynx. e. enters their bones.

Name: Problem 2, Chapter 35: Biology
Uploaded: 2019-07-23T18:17:41-08:00
Duration: 2 min 20 s
Channel: Bryan Lynn
Description: Birds have more efficient lungs than humans because the flow of air in birds a. is the same during both inspiration and expiration. b. travels in only one direction through the lungs. c. follows a tidal ventilation pattern. d. is not hindered by a larynx. e. enters their bones.

   Birds have more efficient lungs than humans because the flow of air in birds
a. is the same during both inspiration and expiration.
b. travels in only one direction through the lungs.
c. follows a tidal ventilation pattern.
d. is not hindered by a larynx.
e. enters their bones.

Biology

Sylvia S. Mader,… 12th Edition

Chapter 35, Problem 2

Instant Answer

Solved by Expert Bryan Lynn

07/23/2019

Step 1

In humans, the air enters through the trachea and goes into the lungs. The lungs expand as we inhale and contract as we exhale. The air goes back out the same way it came in. This is a bidirectional flow of air. Show more…

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Birds have more efficient lungs than humans because the flow of air in birds a. is the same during both inspiration and expiration. b. travels in only one direction through the lungs. c. follows a tidal ventilation pattern. d. is not hindered by a larynx. e. enters their bones.

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Key Concepts

Avian Respiratory System

This concept involves understanding the unique structure and functionality of the bird respiratory system, which includes fixed lungs and a series of air sacs. This system supports a continuous and efficient gas exchange mechanism, allowing birds to maintain high metabolic rates and sustain prolonged activity, especially at high altitudes.

Unidirectional Airflow

This concept refers to the flow pattern of air through the lungs, where air moves in one direction during both inhalation and exhalation. This differs from tidal ventilation seen in many other organisms and enables a consistent, highly efficient oxygen exchange process throughout the respiratory cycle.

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