The Muscle End Plate Is Activated by the Neurotransmitter

question 41

Multiple Choice

The muscle end plate is activated by the neurotransmitter:

• A)serotonin.
• B)norepinephrine.
• C)dopamine.
• D)acetylcholine.

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Definitions:

Fertilization

The process of a sperm cell joining with an ovum (egg cell) to form a zygote, initiating the development of a new organism.

Cleavage

The division of cells in the early embryo following fertilization, leading to the formation of a multicellular organism.

Gastrulation

A phase early in embryonic development during which the single-layered blastula reorganizes into a multilayered structure, forming the embryonic germ layers.

Blastulation

An early stage in embryonic development that results in the formation of a blastula, a sphere of cells surrounding a fluid-filled cavity.