Term
| What is the endocrine system? |
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Definition
| The endocrine system is made up of glands that release their products into the bloodstream. |
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Term
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Definition
| Hormones are chemicals released in one part of the body that travel through the bloodstream and affect the activities of cells in other parts of the body. |
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Term
| Cells that have receptors for a particular hormone are called _______ |
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Definition
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Term
| What is the function of exocrine glands? |
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Definition
| Exocrine glands release their secretions through tube-like structures called ducts directly to the organs that use them, i.e. sweat or tears |
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Term
| What is the function of the endocrine glands? |
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Definition
| Endocrine glands release their secretions (hormones) directly into the bloodstream. |
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Term
| ___________ makes the hormones that control the pituitary gland. |
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Definition
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Term
| _____________ produces hormones that regulate many of the other endocrine glands. |
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Definition
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Term
| ___________ release parathyoid hormone, which regulates the flow of calcuim in the blood. |
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Definition
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Term
| __________ releases thymosin, which stimulates T cell development and proper immune response. |
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Definition
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Term
| __________ release epinephrine and norepinephrine, which help the body respond to stress. |
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Definition
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Term
| __________ releases melatonin, which is involved rythmic activities, such as sleep-wake cycles. |
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Definition
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Term
| ________________ produces thryoxine, which regulates metabolism throughout the body. |
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Definition
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Term
| __________ produces insulin and glucagon, which regulate the level of glucose in the blood. |
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Definition
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Term
| __________ produce estrogen and progesterone |
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Definition
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Term
| ____________ produce testosterone. |
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Definition
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Term
| What are the features of steroid hormones? |
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Definition
| Steroid hormones are produces from a lipid called cholesterol. They can cross cell membranes easily, passing directly into the cell cytoplasm and the nuclei of target cells. |
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Term
| What are nonsteroid hormones? |
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Definition
| Nonsteriod hormones include proteins, small peptides and modified amino acids. |
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Term
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Definition
| Prostaglandins are modified fatty acids that are produced by a wide range of cells. They generally affect only nearby cells and tissues and are known as local hormones. |
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Term
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Definition
| Homrodystasis is the process by which organisms maintain a relatively stable internal environment. |
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Term
| Thyroxine is the principal hormone of what gland? |
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Definition
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Term
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Definition
| Metabolism is a set of chemical reactions through which an organism builds up or breaks down materials it carries out its life processes. |
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