The nervous system Flashcards
(28 cards)
the nervous system is a network of…
cells
2 functions of the CNS
control behaviour and regulates body’s physiological functions
CNS is made up of…
brain and spinal cord
brains receives messages from ???_??? and sends messages to the ???
sensory receptors.
muscles/glands.
spinal cord is a collection circuit of ???_??? connected to the ??? to relay info between the ??? and body
nerve cells.
brain.
brain.
spine is connected to parts of the body via…
spinal nerves
the CNS is responsible for…
reflex actions
the brain’s 4 components
cerebrum, cerebellum, diencephalon, brain stem
what are the 4 lobes of the cerebrum
frontal, temporal, occipital, parietal
what is the cerebellum responsible for (3)
motor skills, balance, coordination
what is the diencephalon made up of (2)
thalamus and hypothalamus
what does the diencephalon link together (2)
endocrine system and nervous system
what is the brain stem responsible for
automatic function
the peripheral system transmits messages via…
neurons
2 components of the peripheral system
autonomic and somatic
the somatic NS relays ??? messages to the ???
sensory.
cns.
the somatic NS receives information from the ???_???
sensory receptors
the somatic NS controls…
voluntary movements
function of sensory neurons
relay messages to the CNS
function of motor neurons
relay messages from the CNS to the body
what can the somatic NS work without and why
the CNS.
create faster reactions to threats.
2 components of the autonomic NS
sympathetic and parasympathetic NS
the autonomic NS is responsible for ??? body functions, which are ??? and ???
vital.
involuntary.
unconscious.
the autonomic NS can produce a fast and efficient response to…
a threat
