Hormones Flashcards
What are hormones
Chemical messages sent in the blood
What are the two ways to send information around the body
Hormones and nerves
Where are hormones realised directly into
The blood
How are hormones carried around the body
They are carried in the blood plasma
How do hormones affect cells
They only affect particular cells called target cells in particular places
What do hormones control
Things in organs and cells that need constant adjustment
How quick do hormones travel through your body
At the speed of blood
What are hormones produced and secreted in?
Various glands : the pituitary gland and ovaries
What are the effects of hormones like
Long lasting
Definition of hormones
Chemical messages which travel in the blood to activate target cells
What important hormones does the pituitary gland produce?
FSH and LH which are involved in the menstrual cycle
What hormone does the ovaries produce?
Oestrogen which is involved in the menstrual cycle
What is the action like between nerves and hormones
Nerves - very fast action
Hormones - slower action
What is the difference in hormones and nerves in how long they act for
Nerves - act for a short period of time
Hormones - act for a long period of time
What is the different in how nerves and hormones act
Nerves - act on a very precise area
Hormones - act in a more general way
