Which of the Following Is (Are) True in Regard to the Fetal

question 45

Multiple Choice

Which of the following is (are) true in regard to the fetal stage of development?

• A) It begins 8 weeks after fertilization.
• B) The organ systems are mostly formed, although immature.
• C) The head is disproportionately large compared to the rest of the body at the beginning of the stage.
• D) All of the above

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Definitions:

Synaptic Knob

The end of the axon branch.

Impulse Transmission

The process by which nerve signals are passed along neurons through the release and reception of neurotransmitters across synapses.

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.

Sciatic Nerve

The largest nerve in the human body, running from the lower back down through the buttock and into the lower limb, responsible for sensation and movement in the leg.