Hormones are classified as steroid or non steroid, steroid hormones enter the target cell in order to function while non steroid hormones bind to receptor on the outer surface of the cell membrane.
The hypothalamus and the pituitary gland link the nervous and endocrine systems.
The pancreas secretes glucagon (which raises the blood sugar), insulin (which lower glucose level), and somatostatin (which inhibit the secretion of glucagon and insulin.
The adrenal glands comprise the cortex and the medulla.
The thyroid gland produces thyroxine, triiodothyronine, and calcitonin while the parathyroid produces PTH which along with calcitonin is responsible for the regulation of blood calcium concentration.
The testes produce the male sex hormone testosterone while the ovaries produce the two female sex hormones estrogen and progesterone.
Reference:
Johnson, M. D. (2010). Human Biology: Concepts and Current Issues (5th ed.). San Francisco: Pearson Education.
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