Question

Describe in detail how dementia affects the anatomy and physiology of memory in the brain.

Answer 1

Dementia is a clinical syndrome characterised by loss of memory and judgement.
When dementia is affected,hippocampus,which is a part of forebrain lying in the temporal lobe,is damaged. It helps new memories to form and apparently that ability is being lost.Damage to the temporal lobe affects memory.

Dementia may cause different symptoms like cognitive,behavioral,psychological,mood related and muscles.

Depending on cause,it can be reversible.
A much more progressive form of dementia is called Alzheimer's and it occur mostly in old aged people.

Dementia also affects memory by affecting the blood vessels that supply blood to brain..this is called vascular dementia.This can cause slow thinking,reduced concentration,risk to stroke etc.

As dementia progresses,balloon like clumps of proteins can be seen in brain,they are called lewy bodies.Such type of dementia is lewy body dementia.Hallucination,tremors are mostly seen in this.