Physiology Exam
Chapter 16 |12th Edition
(2026-2027)
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, Hormones Primary means of control for the endocrine system.
Hypothalamus Gland considered a neuroendocrine organ.
Difference between hormones and paracrines Hormones act over long distances, while paracrines act locally within the same
tissue.
Thyroid and parathyroid glands Two endocrine glands located in the neck.
Primary function of the endocrine system Regulating metabolic functions through hormones.
Characteristic NOT of the endocrine system Initiates rapid responses.
Endocrinology Study of hormones and endocrine organs.
Example of an endocrine gland Pituitary gland.
Autocrines Type of chemical signal that acts on the same cells that secrete them.
Pancreas Organ that contains endocrine tissue but is not exclusively an endocrine organ.
Difference in response time The nervous system initiates responses rapidly, while the endocrine system
initiates responses slowly.
Chemical classification of hormones Most hormones are classified as amino acid-based or steroids.
Determining hormone solubility A hormone's solubility in water is determined by its chemical structure.
Solubility of amino acid-based hormones Water soluble.
Steroid hormones Type of hormones that can cross the plasma membrane.
Synthesis of steroid hormones Steroid hormones are synthesized from cholesterol.