What Is Menarche

question 37

Multiple Choice

What is menarche?

• A)the onset of menstruation.
• B)a period in life characterized by rapid growth.
• C)the development of secondary sex characteristics.
• D)irregularities in the menstrual cycle.

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Definitions:

Neurons

Dedicated cells in the nervous system whose function is to communicate information to other nerve cells, muscle tissue, or glands.

Endocrine Glands

Glands of the endocrine system that release hormones directly into the bloodstream to regulate various bodily functions.

Hormones

Chemical substances produced in the body that regulate and control the activity of certain cells or organs.

Bloodstream

The flowing blood within the circulatory system of a body, responsible for transporting nutrients and removing wastes.