Vineet’s day begins with a cup of piping hot coffee. Caffeine is a stimulant present in coffee which increases the circulation of Adrenaline in the body. Vineet feels refreshed, alert and focussed.
Give the collective term for the protective membranes of the organ mentioned in (a).
Topic: Meninges
Answer
The MENINGES.
The meninges are the three membranes covering the brain and spinal cord. From outside inwards: DURA MATER — tough and fibrous, the outermost ARACHNOID MATER — the middle, web-like layer PIA MATER — thin, delicate, and in direct contact with the nervous tissue
CEREBROSPINAL FLUID lies between the arachnoid and pia mater, acting as a shock absorber and as the medium through which the nerve cells obtain nutrients and dispose of wastes.
Their inflammation is MENINGITIS, a serious disease — which is a useful way to remember the name.