What is homeostasis?
Maintaining a stable internal environment.
Why is homeostasis important?
It keeps conditions right for cells.
What detects changes?
Receptors.
What sends messages?
Nervous and endocrine systems.
What is an effector?
A muscle or gland.
What is a stimulus?
A change in the environment.
What is an example of homeostasis?
Temperature regulation.
Which hormone lowers blood sugar?
Insulin.
Which hormone raises blood sugar?
Glucagon.
Which organ controls blood glucose?
Pancreas.
What happens when body temp rises?
Sweating/vasodilation.
What happens when body temp drops?
Shivering/vasoconstriction.
What part of brain controls temp?
Hypothalamus.
What is glucose used for?
Energy.
What is a reflex?
A fast automatic response.
Path of reflex arc?
Stimulus→receptor→sensory→spinal cord→motor→effector.
Does brain control reflexes?
No, spinal cord.
Why are reflexes fast?
Bypass the brain.
Example of reflex?
Hand withdrawal.
Sensory neuron role?
Carries message to CNS.
Motor neuron role?
Carries message to muscle.
hmmmmm!!!
keep it up your doing great
idk
this card was bad so got rid of it
idk 2.0
same as the other one