Roger Bouillon. A calcified skeleton was a very successful innovation for early vertebrates that enabled the solid implantation of teeth and improved mobility, as well as providing a calcium reservoir ...

The endocrine system is a control system of ductless glands that secrete chemical messengers called hormones that circulate within the body via the bloodstream to affect distant organs. Hormones act ...

The endocrine system is made up of tissues and glands that produce hormones to coordinate and regulate vital bodily functions. Previous articles in this series have examined the anatomy and physiology ...

Endocrinology is a complex study of the various hormones and their actions and disorders in the body. Glands are organs that make hormones. These are substances that help to control activities in the ...

Reference Type I diabetes occurs when the pancreas stops producing insulin. Here's a look at causes, symptoms and treatment of the disease.