What does the endocrine system primarily consist of?

The endocrine system primarily consists of a group of glands that secrete hormones. These glands include the pituitary, thyroid, adrenal glands, and others that work together to regulate numerous bodily functions through the release of hormones into the bloodstream. Hormones are chemical messengers that coordinate complex processes such as metabolism, growth, reproduction, and mood.

This system is distinct from others in the body, as it does not involve the transmission of signals through a network of nerves or rely on the physical structures involved in movement like muscles and bones. Additionally, it is separate from the digestive system, which focuses on the breakdown and absorption of nutrients. Understanding the role and functionality of the endocrine system and its glands is crucial for recognizing how hormonal imbalances can affect health and well-being.