With Regard to Smell,newborns' Expressions on Their Faces Indicate That

question 7

Multiple Choice

With regard to smell,newborns' expressions on their faces indicate that

• A)they do not differentiate odours.
• B)they do differentiate odours.
• C)they can clearly show a preference.
• D)not only can they differentiate odours, but they can clearly show a preference.

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Definitions:

Retrograde Messenger

A substance that communicates backward from the post-synaptic to the pre-synaptic nerve cell, influencing it.

Nitric Oxide

A gaseous signaling molecule involved in various physiological and pathological processes within the body, including vasodilation and neurotransmission.

Resting Potential

The membrane potential (difference in electric charge between the two sides of the plasma membrane) of a neuron in which no action potential is occurring. The typical resting potential is about –70 millivolts. Compare with action potential.

Cytosolic Charge

The net charge within the cytosol, important for cellular processes like transport and signaling.