Intro to endocrinology 1

A chemical messenger secreted into the blood to act upon distant target tissue(s) elsewhere in the body.

They can be derived from amino acids, peptides, or steroids, which will influence their mode of action and time frame.

Adrenaline, derived from tyrosine, is involved in the body's 'fight or flight' response.

<p>Endocrine glands are ductless glands that secrete hormones into the blood, while exocrine glands secrete hormones onto an epithelial surface via a duct.</p> Signup and view all the answers

<p>Melatonin is involved in circadian rhythms and sleep, and it is derived from tryptophan.</p> Signup and view all the answers

<p>Growth hormone, composed of 200 amino acids, is involved in growth and metabolism.</p> Signup and view all the answers

<p>The nature of the cell which makes the hormone (nerve cell)</p> Signup and view all the answers

<p>Hypothalamus</p> Signup and view all the answers

<p>Cortex (steroid hormones: cortisol, aldosterone) and medulla (catecholamines)</p> Signup and view all the answers

<p>Insulin and glucagon</p> Signup and view all the answers

<p>Pineal gland</p> Signup and view all the answers

<p>Important for calcium regulation and bone physiology</p> Signup and view all the answers

<p>T3, T4 (metabolism), and calcitonin (calcium regulation and bone)</p> Signup and view all the answers

<p>Ovaries, testes, and adrenal cortex</p> Signup and view all the answers

<p>Hormones involved in fetal and maternal development</p> Signup and view all the answers

<p>They secrete hormones involved in energy balance and metabolism</p> Signup and view all the answers