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Organisation of the Mammalian Nervous System £4.49
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Organisation of the Mammalian Nervous System
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Organisation of the mammalian nervous system revision flashcards. OCR A: A level biology revision notes. Module 5: Communication, Homeostasis and Energy. A* biology student's notes. Summary of key content to be memorised. Process that needs to be memorised from specification.

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  • December 5, 2023
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  • 2023/2024
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Organisation of the Mammalian Nervous Organisation of the Mammalian
System: Nervous System:
The nervous system is split into the central
nervous system (CNS) & peripheral nervous
system (PNS).
The CNS consists of the brain & spinal cord.
The PNS consists of sensory nerves (that carry
sensory information from the receptors to the
CNS) & motor nerves (that carry motor
commands from the CNS to the effectors).
The PNS is split into the autonomic nervous
system & the somatic nervous system.
The somatic nervous system is voluntary &
stimulates skeletal muscle.
The autonomic nervous system is involuntary
& stimulates smooth muscle, cardiac muscle
& glands.
The autonomic nervous system is split into
the sympathetic nervous system & the
parasympathetic nervous system.
The sympathetic nervous system prepares the
body for fight or flight responses.
The parasympathetic nervous system
prepares the body for rest & digest.
The parasympathetic nervous system &
sympathetic nervous system are antagonistic.


Different Types of Neurones: Different Types of Neurones:
Sensory Neurones – carries an action
potential from a sensory receptor to the
CNS:
Has a cell body just outside the CNS in the
dorsal root ganglion.
Has long dendrites (often a single dendron).

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