Milady Esthetics State Board Practice Test

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Prepare for the Milady Esthetics State Board Test with quizzes. Use flashcards and multiple choice questions with hints and explanations. Excel in your exam!

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Which system is composed of a series of glands?

Circulatory system
Nervous system
Endocrine system
Respiratory system

The correct answer is: Endocrine system

The endocrine system is composed of a series of glands that secrete hormones directly into the bloodstream. These hormones are vital for regulating various bodily functions, such as metabolism, growth and development, tissue function, and mood. Some of the key glands in this system include the pituitary gland, thyroid gland, adrenal glands, pancreas, and ovaries or testes, depending on gender. In contrast, the circulatory system primarily focuses on the transportation of blood and nutrients throughout the body via the heart and blood vessels. The nervous system controls and coordinates bodily functions through a network of nerves and neurotransmitters. The respiratory system is responsible for gas exchange and is structured around organs like the lungs and trachea. Each of these systems plays a critical role in maintaining homeostasis, but it is the endocrine system that is specifically characterized by its network of glands and hormonal regulation.