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The nervous system (The brain (Cerebellum is involved in controlling a…
The nervous system
The brain
Divided into four main areas: Cerebellum, Cerebrum, diencephalon and brain stem
Cerebrum= Largest part of the brain and is further divided into four main lobes (frontal, parietal, occipital and temporal)
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Cerebellum is involved in controlling a persons motor skills and balance and coordinating the muscles to allow precise movements
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Diencephalon contains the Thalamus and Hypothalamus. Thalumus= A relay station for nerve impulses coming across the senses
The hypothalamus has to regulate the bodys temperature, hunger and thirst. It also acts as a link between the Endocrine System and the Nervous System, controlling the release of hormones from the Pituitary Gland
The Brain Stem is responsible for regulating the automatic functions that are essential for life (breathing, HR and swallowing.
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The CNS
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The spinal cord: A collection of nerve cells that are attached to the brain and run the length of the spinal column
The spinal cord
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Contains circuits of nerve cells that enable us to perform some simple reflexes without the direct involvement of the brain (pulling your hand away from something that is hot)
If the spinal cord is damaged, areas supplied by spinal nerves below the damaged site will cut off from the brain and stop functioning
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There are two main divisions of the PNS: The Somatic nervous system and the Autonomic nervous system
The somatic nervous system= Made up of 12 pairs of cranial nerves and 31 pairs of spinal nerves which both have sensory neurons and motor neurons
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