Which Chemical Substances of the Endocrine System Serve Functions Similar

question 55

Multiple Choice

Which chemical substances of the endocrine system serve functions similar to the neurotransmitters of the nervous system?

• A) lymph nodes
• B) hormones
• C) arterioles
• D) efferents

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Definitions:

Fertilization

The process by which a sperm cell unites with an egg cell to form a zygote, initiating the development of a new organism.

Relaxin

A hormone produced by the placenta in the later months of pregnancy that increases flexibility in the ligaments and joints of the pelvic area. In men, relaxin is contained in semen, where it assists in sperm motility.

Uterus

A major female hormone-responsive reproductive sex organ of most mammals, including humans, where offspring are conceived and in which they gestate before birth.

Contractions

The process of muscles tightening and becoming shorter, usually involuntarily, which can occur during various bodily functions or activities.