Innerbody.com explains that all of the body’s glands are part of the endocrine system, but the glands themselves are scattered throughout the body. Certain glands, including the parathyroid, thyroid, pituitary and pineal glands, are concentrated in the head or neck. By contrast, the thymus gland is located in the upper torso, whereas the adrenal glands, ovaries, pancreas and testes are located in the lower abdomen.
While Innerbody.com describes all of the body’s glands as part of the endocrine system, other resources include exocrine glands among the body's true glands. Exocrine glands differ from endocrine glands in that they have a duct through which their secretions exit rather than secreting the product directly into the bloodstream as endocrine glands do. Wikipedia lists sweat glands and saliva glands as examples of exocrine glands. Saliva glands are located in the mouth, whereas sweat glands are found throughout most of the body.
Innerbody.com indicates that the nervous system controls all of the endocrine glands. The glands in turn produce and secrete hormones, which help to maintain constant conditions inside the body. For example, the pancreas produces enzymes that digest food and hormones, such as insulin and glucagon, that keep the body’s blood sugar concentration stable.Learn More
Sebaceous glands are found in the dermis layer of the skin. They are the glands that secrete different cells and the makeup of the gland is dependent on what it is excreting.Full Answer >
The solar plexus is located approximately in front of the diaphragm in the upper abdomen. It is composed of many smaller plexi like the hepatic plexus and gastric plexus.Full Answer >
The pancreas is located in the back portion of the abdomen behind the stomach. It is a small organ that lies between the stomach and the spinal cord. The pancreas extends to connect to the small intestine.Full Answer >
Neurotransmitter receptors are located on the cell surface of specific ligands, post-synaptic cells and sometimes pre-synaptic cells. While they are most commonly found in the nervous system, they are also present on some muscle and immune tissues.Full Answer >