Lab 27: Functional Anatomy of the Endocrine Glands

Hypothalamus produced hormones

ADH, Oxytocin

Hormones that maintain salt and water balance in the extracellular fluid

ADH, aldosterone

Pituitary

Bilobed gland located in the sella turcica

Define target cells.

Cells within an organ that are affected by a hormone.

Ovaries

Found in the pelvic cavity of the female, concerned with ova and female hormone production

Pineal

Found in the roof of the third ventricle of the brain

Thymus

Found in the upper thorax overlying the heart; large during youth

If hormones travel in the bloodstream, why don't all tissues respond to all hormones?

Hormones have to bind to specific receptors that only some tissues have.

Thyroid

Located in the anterior neck; produces key hormones for metabolism

Testes

Paired glands suspended in the scrotum

Hypothalamus

Produces the hormones that are stored in the posterior pituitary

Chemically, hormones belong chiefly to two molecular groups, the _______ and the _____.

Steroids; amino acids

Tropic hormones

TSH, LH, FSH, ACTH

Hormones synthesized in Anterior Pituitary

TSH, LH, FSH, ACTH, PRL, GH

Both the endocrine and the nervous systems are major regulating systems of the body; however, the nervous system has been compared to a text message, and the endocrine system to mailing a letter. Briefly explain this comparison.

The nervous system sends quick electrical signals to create reactions in the body, but the endocrine system sends slower chemical messengers (hormones) through the blood stream.

tetany

inadequate pth

Pancreas

A mixed gland, located behind the stomach and close to the small intestine

Define hormone.

A steroid or amino acid based chemical messenger