An Action Potential Occurs in the Postsynaptic Muscle Cell When

question 29

Multiple Choice

An action potential occurs in the postsynaptic muscle cell when _____________.

• A) acetylcholine binds to the receptors on the muscle cell
• B) when calcium functions as a neurotransmitter
• C) the sodium-potassium pump moves ions across the membrane
• D) all of these

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Definitions:

Girls

Girls are female children from birth until adolescence, characterized by their distinct biological and gender traits compared to boys.

Average Age

The mean age of a particular group or population, calculated by adding the ages of all individuals and dividing by the number of individuals.

Primary Sex Characteristics

The main organs and structures directly involved in reproduction, including the ovaries in females and the testes in males, present from birth.

Secondary Sex Characteristics

Physical features that emerge during puberty which distinguish the sexes but are not directly involved in reproduction, such as breast development in females and facial hair in males.