Topic 7 - Animal Co-ordination, Control And Homeostasis Flashcards
Where are hormones produced
In endocrine glands
What do hormones go to
Target organs
Where is adrenaline produced
In the adrenal gland
Name 4 things adrenaline does
- Increase BPM
- Increase blood pressure
- Increase blood to muscles
- Stimulates liver to turn glycogen to glucose
Where is thyroxine produced and what does it do
It’s produced in the thyroid gland and it controls the BMR
What is BMR an example of
Negative feedback
What happens if throxine levels are low
Triggers TRH production in hypothalamus gland
What does TRH do
Triggers TSH production in the pituitary gland
What does TSH do
Triggers throxine production in the thyroid gland
What happens when throxine levels are normal
No TRH or TSH are produced
What’s the first step of the menstrual cycle
FSH causes egg development and oestrohen production
What’s the second step of the menstrual cycle
Oestrogen stops FSH production and causes LH production and thickens uterus lining
What’s the third step of the menstrual cycle
LH causes egg release and progesterone production
What’s the fourth step of the menstrual cycle
Progesterone stops LH production and mentains uterus lining
Name 2 side effects of taking the pill
Must be taken every day and increases Risk of breast cancer
Name a benefit of the pill
Very effective
Name 2 benefits of condoms and diaphrams
No STI and no side effects
Name a negatives of condoms and diaphrams
Can slip off
Define homeostasis
The regulation of internal conditions of a cell of organism at its optimal conditions to function in response to internal and external changes
How is blood glucose levels decreased
Pancreas releases insulin which causes cells to take in glucose and turn it to glycogen
How is blood glucose levels increased
Pancreas releases glucagon which causes cells to release glycogen as glucose
What is type 1 diabetes
When the pancreas doesn’t produce enough insulin
What is type 2 diabetes
When cells become insulin resistant
How can you treat type 1 diabetes
Insulin injections, diet and exercise
