INITIAL PRESENTATION (VESTIBULAR DYSFUNCTION)
Balance in a general sense is the ability to remain upright and so anything interfering with the mechanisms keeping an animal upright (strength, muscle tone, proprioception and coordination) could be said to affect balance.
In neurological terms, balance describes the control of posture exerted by the vestibular system. The receptors of the vestibular system are referred to as balance receptors and detect the position and movement of the head. This is termed ‘special’ proprioception. (see Chapter 57, p 234)