Bird lungs are efficient because of

A) Their large size.
B) Unidirectional and continuous air flow.
C) Countercurrent blood flow.
D) Capacity for discontinuous ventilation.


Answer: B

Anatomy & Physiology

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Why must a normal body temperature be maintained in order for chemical reactions to be continued at life-sustaining rates?

What will be an ideal response?

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About ____________________ ml of air are inspired, and the same quantity expired during quiet breathing

Fill in the blank(s) with correct word

Anatomy & Physiology

Which one of the following is continuous with the esophagus?

A) nasopharynx B) oropharynx C) linguopharynx D) laryngopharynx E) esophagopharynx

Anatomy & Physiology

The pain of angina pectoris comes from a blockage in an artery that supplies the

A. heart. B. sternum. C. left arm and shoulder. D. neck and jaw.

Anatomy & Physiology