What Happens in Chimps and Humans When the Snout Is

question 34

Multiple Choice

What happens in chimps and humans when the snout is shortened considerably?

• A)The sense of smell is dramatically reduced.
• B)The eyes move to the front and allow for stereoscopic vision.
• C)This allows for the development of a chin.
• D)Canine teeth are lost.
• E)Vocalization becomes possiblE.

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Definitions:

Secondary Bronchus

Branches of the bronchi that lead air into each lobe of the lungs for gas exchange; these are subdivisions of the primary bronchi.

Tertiary Bronchus

The tertiary bronchus, also known as the segmental bronchus, branches off the secondary bronchus in the lung and serves specific lung segments.

Bronchiole

One of the finer subdivisions of the bronchial tubes, less than 1 mm in diameter; has no cartilage in its wall but does have relatively more smooth muscle and elastic fibers.

Segmental Bronchus

Branches of the bronchial tree that supply air to specific segments of the lung, ensuring efficient gas exchange.