clipped from: health.howstuffworks.com   
How many senses does a human being have?
In order for us to have a sense, there needs to be a sensor. Each sensor is tuned to one specific sensation.

Depending on how you want to count it, there are between 14 and 20 different senses listed here.

In your eyes
In your inner ears, there are sound sensors
sensors that let you detect your orientation
your sense of balance
  • In your skin, there are at least five different types of nerve endings:
    • heat sensitive
    • cold sensitive
    • pain sensitive
    • itch sensitive
    • pressure sensitive
    • In your nose,
    your sense of smell
    On the tongue,
    our sense of taste
    In your muscles and joints
    sensors that tell you where the different parts of your body are and about
    motion and tension
    In your bladder
    when it is time to urinate.
    Similarly, your large intestine has sensors
    There are also the senses of hunger and thirst.
    There are some people who do seem to have other senses.
    sense impending weather changes
    the sense
    "eyes in the back of the head"
    when someone else is looking at them.