Hormones Flashcards
Define ‘hormones’
Chemical messages that travel through the blood to activate target cells
Hormones are carried in the ____ ____ to other parts of the ____
Hormones are carried in the blood plasma to other parts of the body
Hormones only effect ____ ____ in ____ ____
Hormones only effect particular cells in particular places
What are the particular cells that hormones effect called?
Target cells
Hormones control things in ____ and ____ that need ____ ____
Hormones control things in organs and cells that need constant adjustment
What are hormones produced in and secreted by?
Various glands
The effects of hormones tend to be…
… relatively long-lasting
Name 2 hormones produced by the pituitary gland, and what process they are involved in
- FSH
- LH
Involved in the menstrual cycle
Which hormone do the overies produce, and what process is it involved in?
Oestrogen
Involved in the menstrual cycle
What are the 2 ways messages can be sent around the body?
Via the
- Nervous
or
- Hormonal
systems
In what way do nerves and hormones have similar jobs?
They both carry information and instructions around the body
Name the three ways nerves and hormones differ
Nerves
- Very fast message
- Act for a very short time
- Act on a very precise area
Hormones
- Slower message
- Act for a long time
- Act in a more general way
If you’re not sure whether a response is nervous or hormonal, what 2 things should you consider about it?
- The speed of the reaction
- How long the reaction lasts
Give an example of a stimulus that would stimulate a quick, nervous response
Pain
Give an example of a stimulus that would stimulate a long lasting, hormonal effect.
Which hormone and what does it do?
How can you tell that this is a hormonal response?
Shock
Adrenaline, causing the fight-or-flight response
You feel a bit shaky for a while afterwards
