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.
Question 2
The first step in the process of photoreception is
A) the bleaching of rods.
B) the bleaching of cones.
C) absorption of a photon by a visual pigment.
D) inhibition of the sodium pumps.
E) release of neurotransmitter.
The human birth process as an example of positive feedback.
Vessel with birth scene, Peru, Moche culture.
Perform Infant Rescue Breathing
Pus-forming infection. Such infections occur more frequently in individuals with immunoglobulin ...
Birth of Modern Astronomy