Anatomy 112 Exam 4

Hormone

chemical substance produced by a gland, tissue, or organ that is released into the blood and carried to a specific area in order to regulate the metabolic activity of a certain group of cells

What kind of cell has receptors for hormones?

target cell

Most target cells have receptors for the hormone…

thyroxine

What gland does thyroxine come from?

thyroid

What 2 processes control most hormones?

cellular demand, negative feedback system

What are the 2 functions of the endocrine system?

regulate body, homeostasis of nutrients

All hormones work on a ______ feedback system, except for ______. This operates with a _____ feedback system.

negative, oxytocin, positive

What does the hormone oxytocin stimulate?

uterus contractions for childbirth

If there is a too much of a hormone _____, too little of a hormone ____.

hyper, hypo

The term anabolic refers to:

building up

The term catabolic refers to:

breaking down

What are the 3 classifications of hormones?

amino acid, steroids, eicosanoids

What are the amine hormones in the amino acid based group?

epinephrine, norepinephrine

What are the peptide hormones in the amino acid based group?

ADH, oxytocin

What are the protein hormones in the amino acid based group?

growth, prolactin, parathyroid

What are the glycoprotein hormones in the amino acid based group?

FSH, LH, TSH

What are the 4 steroid hormones?

estrogen, progesterone, aldosterone, cortisol

Steroids are ____ soluble.

lipid

What are the 2 types of eicosanoids?

leukotrienes, prostaglandins

Eicosanoids are found in ___ cells, are special groups of ____ ____, and are produced by the _______ _______.

most, fatty acids, endoplasmic reticulum

Eicosanoids work through ____ ___ and they act _____.

cyclic AMP, locally