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Dendrite
(See AXON).
Diencephalon
These are small white nerve centres. In this area lies the small hypothalamus, which controls appetite regulation, sexual arousal, thirst and temperature control, and some aspects of memory.
Diffuse Axonal Injury (DAI)
Widespread tearing of nerve fibres across the whole of the brain.
Diffuse Brain Injury
Injury to cells in many areas of the brain rather than in one specific location.
Diplopia
Double vision.
Disinhibition
Difficulty in controlling urges and impulses to speak, act or show emotions.
Dura
One of the three membranes holding the brain together within the skull.
Dysarthria
Difficulty speaking because of weakness and lack of co-ordination of the muscles for speech.
Dysphagia
Difficulty with swallowing.
Dyspraxia
Inability to plan and perform purposeful movements, while still having the ability to move and be aware of the movement.
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