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14 Cards in this Set
- Front
- Back
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What does the endocrine system control?
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It controls many of the body's daily activities as well as long term changes like development.
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The endocrine system is made up of ______?
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glands. These are the organs that produce chemicals.
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Does the enocrine system have delivary tubes?
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No.
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What are endocrine glands?
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They produce and release there chemical products directly into the blood strem. The blood carries it throughout the body.
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What is a Hormone?
What do they do? |
The chemical product of an endocrine gland.
They turn off, on, speed up and slow down activities of organs and tissues. |
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Hormones cause a ___________________ response.
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They casue a slower, longer lasting, response.
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What is a target cell and what interacts with it?
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A hormone only interacts with target cell, which are cells that recognise the hormone's chemical structure.
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What two systems work together?
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The Endocrine and the Nervous system.
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What is the Hypothalamus?
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It is a tiny part of the brain, located in the middle of your head, which is the link between both systems.
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What do nerve messages control?
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Hunger, sleep, adn other conditions that come from the hypothalamus.
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Does it play a major role in maintaining homeostasis?
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Yes.
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What is below the hypothalamus? How big is it?
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The pituitary gland, the size of a pea, communicates with the hypothalamus to control many body activities.
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What is negative feedback?
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A process in which a system is turned iff by the condition it produces.
E.X.-regulation of temperature by a thermostat and regulation of hormones in the blood. |
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What is thyroxine?
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A thyroid hormone that controls how much energy is availavle to cells.
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