By the End of the Eighth to Twelfth Week, the Child's

question 87

Multiple Choice

By the end of the eighth to twelfth week, the child's sex can be determined by:

• A) fetal movements.
• B) tissue plasticity.
• C) progesterone production.
• D) external genitalia.

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Definitions:

Sensory Stimuli

Refers to any external or internal event or factor that can be perceived by the senses and elicit a response.

Nerve Endings

The terminal parts of nerve cells that make synaptic connections with other nerve cells, muscles, or glands.

Nervous System

An extensive network of specialized cells that communicate information about an organism's environment and its own body in order to regulate its functions.

Sensory Adaptation

The process by which sensory receptors become less sensitive to constant or unchanging stimuli over time, allowing individuals to focus on changes in their environment.