Difference between revisions of "Hormone"
(Created page with "==Key Stage 4== ===Meaning=== A hormone is a chemical messenger used to send signals around the body to target organs via the blood stream. ===Ab...") |
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: [[Hormone]]s take longer to travel around the body than [[Impulse (Biology)|electrical impulses]]. | : [[Hormone]]s take longer to travel around the body than [[Impulse (Biology)|electrical impulses]]. | ||
: The effect of [[hormone]]s can be persistent while the [[Impulse (Biology)|elecrtrical impulses]] are instantaneous. | : The effect of [[hormone]]s can be persistent while the [[Impulse (Biology)|elecrtrical impulses]] are instantaneous. | ||
| + | ==Extra Information== | ||
| + | {{#ev:youtube|https://www.youtube.com/watch?v=-SPRPkLoKp8}} | ||
Revision as of 18:52, 19 April 2019
Contents
Key Stage 4
Meaning
A hormone is a chemical messenger used to send signals around the body to target organs via the blood stream.
About Hormones
- Hormones are used in the coordination of the body.
- Hormones are secreted by endocrine glands.
- Different hormones affect the behaviour of different target organs.
- Hormones travel around the body through the blood.
- Hormones can last a long time in the blood before being removed so the behaviour of a target organ may be changed for some time.
Hormones compared to Electrical Impulses
- Hormones travel around the body in the blood stream while electrical impulses travel via the nerves.
- Hormones take longer to travel around the body than electrical impulses.
- The effect of hormones can be persistent while the elecrtrical impulses are instantaneous.