SENSATION AND
PERCEPTION
Position, Movement,
and Balance
Kinesthesis is the sense of the position and
movement of body parts. Through kinesthesis, people know where all the parts of
their bodies are and how they are moving. Receptors for kinesthesis are located
in the muscles, joints, and tendons.
The sense of balance or equilibrium provides
information about where the body exists in space. The sense of balance tells
people whether they are standing up, falling in an elevator, or riding a roller
coaster. The sensory system involved in balance is called thevestibular
system. The main structures in the vestibular system are three fluid-filled
tubes called semicircular canals, which are located in the inner
ear. As the head moves, the fluid in the semicircular canals moves too,
stimulating receptors called hair cells, which then send impulses to the brain.
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