Nervous System Flashcards
(46 cards)
central ns
brain and spinal cord
peripheral ns
Web of nerves carrying messages to and from the rest of the body
flow of info
stmulas >detect >sensory>cns>motor>response
what is the tiny space between the nerves
synapses
relay
is the line
function of brain
controls and Co ordinates with all nerves
spinal cord
relays impulses between nerves
sensory
carries impulses towards the cns from muscles and body organs
motor
carries impulses away from cns and towards muscles and body organs
what is a reflex
impulse respond
what is the reflex for
to protect us from harm
what does cerebrum do
controls thought and memorise
cerebellum
controls balance and walking
medulla
controls heart and breathing
what does endocrine glands do
realeas hormones
what happens if you drink to much water
have to pee more
what happens if you do drink enough water
produce less pee
does water levels have to stay the same
Yeah
what happens when sugar levels increase
pancreas produces more insulin >the a message goes to liver to make the glucose into glycogen
what happens when a sperm cells and egg cells come together
it becomes a zygote
in plants the egg cells are made in the
ovarys
in plants the sperm cells are made in
the anther
discrete variation is
yes and no answers
continuous
is measurable difference