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…

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.

(a) Name the organ that is stimulated by caffeine which makes Vineet alert and focussed.

(b) Give the collective term for the protective membranes of the organ mentioned in (a).

(c) Which part of the autonomic nervous system increases the secretion of Adrenaline?