The Central Nervous System

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Presentation transcript:

The Central Nervous System

Phineas Gage

The Central Nervous System CNS - brain & spinal cord PNS - nerves that connect spinal cord to rest of body

The Central Nervous System brain & spinal cord surrounded by meninges (membrane), spinal fluid & bone (skull or vertebrae) They cushion, nourish, & protect

Spinal Cord - located inside vertebrae of spine contains interneurons that control motor reflexes carries impulses between brain & PNS

Spinal Cord Grey Matter - nerve cell body & dendrites White Matter - axons (usually myelinated)

In partners Read the article & summarize Be ready to teach another person the gist of the article Be ready to learn from another person.

The Brain

Hind Brain Three regions: Medulla (oblongata) Cerebellum Pons

Hind Brain Medulla -involuntary behaviour control eg. Heart, breathing, digestion

Hind Brain Cerebellum -voluntary muscle sensory signal receiver (signals about movement and balance, by muscle & joint receptors) Pons- neuron bundle that connects the cerebellum to the higher brain. Brain

Cerebral Cortex (cerebrum) Cerebrum controls the sensory & motor activities. Four main sensory regions or lobes - Frontal - Parietal - Occipital - Temporal

Cerebral Cortex (cerebrum) Frontal -Thinking, planning, & personality

Cerebral Cortex (cerebrum) Parietal -sensory regions that register information about, touch, pain, temperature, & pressure

Cerebral Cortex (cerebrum) Occipital -sensory regions for vision.

Cerebral Cortex (cerebrum) Temporal lobe - regions for auditory sensory perception.

Construct a table about the parts and function of the: - thalamus - hypothalamus - basal nuclei - blood brain barrier

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