Co- ordination and response Flashcards
Topic 2 J
what is homeostasis
maintaining controlled conditions within the body under automatic control
what part of the body are involved in maintaining homeostasis
brain stem and spinal cord
is homeostasis a controlled or automatic response
it is an automatic
they can involve what type of responses (2)
nervous or chemical
all control systems carry out co-ordinated response require : (4)
- a stimulus ( a change)
- a receptor ( cells that detect stimuli)
- a coordination centre ( brain, spinal cord, pancreas)
- an effector
what do effectors do/what are they
a muscle or gland, which brings about responses to restore optimum levels
what do receptors do / what are they
cells that detect stimuli
what is a stimuli
a change in the environment
what is a coordination centre / what does it do
recieves and processes information from receptors and is something like the spinal cord or the brain or pancreas
where are receptor found
in the sensory organs ( eyes, tongue, nose, ears)
where are effectors found and what are they
found in glands (pancreas) and they are muscle cells
how do effectors respond (2)
muscle cells contract
glands secret hormones
receptors communicate via the _____
nervous system or hormonal system
what are examples of homeostasis
body water content
body temperature
