The ridge found at the bifurcation of the trachea is called the

A) root of the lung.
B) carina.
C) extrapulmonary ridge.
D) trachealis.
E) hilum.


B) carina.

Anatomy & Physiology

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MALT is found in which layer of the wall of a hollow organ?

A.   Epithelial B.   Lamina propria C.   Muscularis externa D.   Submucosa

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Which skeletal features can be used to determine the identity of an individual?

What will be an ideal response?

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During mild to moderate exercise, arterial pH, PO2, and PCO2 are ________.

A) almost twice as high as normal. B) nearly normal. C) nearly half of normal.

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Which organs are surrounded by the pleural membrane?

A. Lungs B. Heart C. Intestines D. Kidneys

Anatomy & Physiology