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Descripción
Mapa Mental por Jenny Carey, actualizado hace más de 1 año
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Creado por Jenny Carey
hace más de 3 años
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The Nervous System
- The Nervous system is a
network of nerve cells and fibres
which transmits nerve impulses
between parts of the body to
regulate behaviour in response to
the environment.
- Central Nervous System (CNS)
- Made up of the
Brain and Spinal
Cord
- It is the origin of all
complex commands
and decisions
- It is the central
processing unit
(using the
computer model)
- Made up of the
Brain and Spinal
Cord
- Peripheral Nervous System (PNS)
- Automatic Nervous System (ANS)
- Sympathetic Nervous System
- Arouses the body.
- Known as the 'fight
and flight' response
- Effects on the body
- Increase in glucose
production
- Pupils dilate to allow
more light in to see
far away
- Saliva production
inhibited
- Breathing rate
increases. More oxygen
to muscles
- Blood flow diverted
from skin to muscles
- Heart rate
increases
- Blood flow away from
digestive organs
- Increase in glucose
production
- Arouses the body.
- Parasympathetic Nervous System
- Relaxes the
body.
- Known as the ' rest
and digest' response
- Effects on the body
- Pupils Dilate
- Release of bile
- Decrease in glucose
conversion
- Peristalsis stimulated
- Saliva production stimulated
- Breathing rate
decreases
- Heart rate
decreases
- Blood diverted to
digestive system
- Pupils Dilate
- Relaxes the
body.
- Transmits info
to and from
the CNS
- 'autonomic'
because it
operates
involuntarily
- Sympathetic Nervous System
- Somatic Nervous System (SNS)
- Transmits info to
the CNS and it
receives info from
the CNS to control
voluntary muscle
movement.
- Connects the
CNS and the
senses.
- Transmits info to
the CNS and it
receives info from
the CNS to control
voluntary muscle
movement.
- Automatic Nervous System (ANS)
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