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Chapter 17- Hormones

Endocrine System

Components of feedback loop Receptor, control center, effector
Define- Paracrine Communication from cell to cell within a single tissue
Simple reflex Direct response, one hormone
Complex reflex 2+ hormones
Hormone(s) of pineal gland Melatonin
Hormone(s) of parathyroid gland Parathyroid hormone
Hormone(s) of thyroid gland T3, T4, Calcitonin
Exocrine glands secrete products onto epithelial surface through a duct
Endocrine glands release hormones into blood or lymph.
Gland triggers humoral (blood)‏ hormonal (hormone)‏ neural (neurotransmitter)‏
Define hormone A compound that is secreted by one cell and travels through the circulatory system to affect the activity (function, metabolism, growth, etc.) of cells in another part of the body
Hormone classification Steroid/Lipid based and peptide (amino acid) based.
Steroid hormones Released from reproductive organs, adrenal glands (corticosteroids) and kidneys (calcitriol)
Prostaglandins hormone-like lipids, not produced by endocrine glands; act locally instead of being transported
Freely circulating hormones are... ...faster and with short term effects.
Hormones bound to transport proteins or binding proteins are... ...slower and with longer lasting effects.
Created by: chickadeea16



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