When a Muscle Contracts It Can Pull, and When It

question 21

True/False

When a muscle contracts it can pull, and when it stretches it can push.

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Definitions:

Testosterone

A steroid hormone that plays a key role in the development of male reproductive tissues and the promotion of secondary sexual characteristics.

Estrogens

The principal class of female sex hormones.

Secondary Sex Characteristics

Physical features that emerge during puberty, distinguishing the two sexes from each other but not directly involved in reproduction, such as breast development in females and facial hair in males.

Primary Sex Characteristics

The physical and biological attributes that distinguish males and females, including reproductive organs and structures.