Which of the Following Statements Is True About the Period

question 74

Multiple Choice

Which of the following statements is true about the period of the zygote?

• A) It lasts from implantation to the eighth week of pregnancy.
• B) During this period, the primitive brain and spinal cord appear.
• C) During this period, the blastocyst burrows into the uterine lining.
• D) It spans the first and second trimester of pregnancy.

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Definitions:

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing information and coordinating bodily functions.

Somatic Nervous System

A part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles.

Autonomic Nervous System

A part of the peripheral nervous system that controls involuntary bodily functions such as heartbeat, digestion, and breathing.

Central Nervous System

Comprises the brain and spinal cord, responsible for processing information and controlling most functions of the body and mind.