Endocrine System

5. Chemical messengers of the endocrine system.
7. ___-derivative: structural classification of a hormone made from fat.
11. Term describing when a few hormones binding to cell-surface receptors triggers a magnified effect on the target cell.
14. How a lipid-derivative hormone travels.
15. structural classification of a hormone made from short chains of amino acids.
18. Collective term for hormones produced by the adrenal medulla.
20. Effect of hormones that bind inside the cell, such as steroid and thyroid hormones.
21. When hormones have different but complementary effects.
23. Outside of the cell, such as where a hormone-binding protein may be located.
25. Inside of the cell, such as where a hormone-binding protein may be located.

1. How up-regulation of a hormone changes the number of receptors and sensitivity for that hormone.
2. When two hormones have opposite effects.
3. How hormones travel through the body.
4. ___-regulation: presence of a hormone decreases the number of receptors and sensitivity for that hormone.
6. The endocrine system is ___ to communicate and respond to stimuli than the nervous system.
8. When hormones work together toward a common goal.
9. ___-derivative: structural classification of a hormone made from a protein building block.
10. Effects of the endocrine system last ___ than for the nervous system.
12. System that must be used to trigger the cellular response to a hormone that binds on the cell surface.
13. Protein molecule that a hormone binds to in order to trigger a cellular response.
16. The endocrine system regulates ___ processes, such as growth, development, and reproduction.
17. When one hormone is needed for another hormone to work.
19. Effect of hormones that bind outside the cell.
22. Activated when a hormone binds to its cell-surface receptor.
24. How a hormone that is functional for a short time and breaks down when it binds to its receptor travels through the blood.