Which of the Following Changes Does Not Occur at Birth

question 116

Multiple Choice

Which of the following changes does not occur at birth when an infant takes his or her first breaths?

• A) Blood flow to the lungs decreases.
• B) The resistance in the pulmonary arteries decreases.
• C) Changes in blood flow cause the foramen ovale to close.
• D) Air enters the alveoli.
• E) Gas diffuses across the alveolar-capillary membrane.

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Definitions:

Color-Blind

A visual impairment where an individual has difficulty distinguishing between certain colors.

Cones

Photoreceptor cells in the retina of the eye responsible for color vision and visual acuity under bright light conditions.

Visual Pigment

Molecules in photoreceptor cells of the eyes that undergo chemical changes upon absorbing light, initiating the process of vision.

Rods

Specialized photoreceptor cells in the retina that are responsible for vision at low light levels.