Page 23 - Changes and Challenges

Dementia
Changes and Challenges
Chemoreceptors:
These trigger an area of the medulla in the brain that is involved in detecting
blood born hormones and drugs. It also is involved in the vomiting reflex.

Thirst:
This system allows our body to monitor its hydration level and so our body
knows when it should tell us to drink.

Hunger :
This system allows your body to detect when we need to eat something.

Magnetoception:
This is the ability to detect magnetic fields, which is principally useful in
providing a sense of direction when detecting the Earth’s magnetic field.
Unlike most birds, humans do not have a strong magnetoception.

Time:
This one is debated as no singular mechanism has been found that allows us
to perceive time. However, we have a startling accurate sense of time,
particularly when young.

Humour:
Not defined as a human sense as such but very relevant to us, and last if not
as equally important;

Justice
Very relevant to our sense of self and dignity – our sense of Justice. This may
just be the most important sense of all.

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