B1.2 Coordination and Control Flashcards
Define ‘receptors’.
A cell that can detect stimuli.
Define ‘stimuli’.
Changes in the environment.
State what the receptors in the eyes are sensitive to.
Light.
Which body part coordinates a response when it receives information?
The brain.
What are the tongue and nose sensitive to and what does this allow us to do?
Chemicals.
Taste and smell.
What does ‘CNS’ stand for?
Central Nervous System.
What does the CNS include?
The brain and spinal cord.
why is it important for animals to detect changes in their surroundings
so they can avoid danger
light receptor cells contain?
nucleus, cytoplasm & cell membrane
what are the 2 main parts of the CNS?
spinal cord and brain
what type of cell carries information to and from the CNS
neurone cell
how do impulses get across synapses
signal is transferred across the gap by chemicals which are released. Chemicals diffuse across the gap and trigger a new impulse in the neurone on the other side - electrical impulses
where are hormones produced
the glands
what are the differences between hormones and the nervous system
hormones- slower, don’t target specific areas
CNS- short amount of time, target specific areas
where is FSH & LH produced
pituitary glands
