Daniel Has Just Experienced His First Ejaculation

question 19

Multiple Choice

Daniel has just experienced his first ejaculation. If he is typical of most boys, how old is he?

• A)Age 6
• B)Age 10
• C)Age 13
• D)Age 16

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Definitions:

Axon diameter

The thickness of the axon, a part of a neuron that carries electrical impulses away from the neuron's cell body, which can affect the speed of neural transmission.

Impulse conduction

The process by which electrical signals are transmitted along nerve fibers or muscle fibers.

Neurotransmitter

Chemical substances in the body that transmit signals from a neuron to a target cell across a synapse.