Unformatted text preview: 3. Hormones – (refers to the chemical being released); a chemical that turns another tissue on or off 4. Exocrine glands – have ducts; salivary glands, mammary glands, sweat glands, liver B. Hormones – classification (fig. 48-2) 1. Peptides – 2 or more amino acids joined together a) Oxytocin (causes uterus to contract during and after labor; causes ejection of milk during breast feeding), antidiuretic hormone (controls water reabsorption in the kidney) – these are tiny, about nine aa; b) Glucagon (increases glucose in the blood if you need it), secretin, calcitonin – about 30 aa c) Insulin, growth hormone, thyroid-stimulating hormone 2. Amino acid derivatives...
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- Spring '08
- Biology, interstitial fluid, Thyroid-stimulating hormone