Posture and balance

• Explaining Posture:

  • a change in the position of the head in space
  • stimulates the maculae
  • in the utriculus and sacculus
  • the stimulus is converted into an impulse
  • the impulse is transmitted to the cerebellum
  • via the auditory nerve
  • the cerebellum sends impulse to the muscles to restore posture
• Explaining balance:

  • a change in speed/direction of movement
  • stimulates the cristae (A)
  • in the semi-circular canals (B)
  • the stimulus is converted to an impulse
  • the impulse is transmitted to the cerebellum
  • via the auditory nerve
  • the cerebellum sends an impulse to the muscles to restore balance

  
• The region in the ear responsible for posture are?

  The utriculus and sculls
• The recpetor in the ear responsible for posture is?

  the maculae
• Give the name of the nerve that transmits posture correction to the cerebellum.

  auditory nerve
• If the position of the head changes then posture must be maintained.
• If the speed or direction of the body changes then balance must be maintained.
• Which region of the ear is responsible for balance?

  semi-circular canals
• The receptor in the ear responsible for a change in speed or direction is?


  The Cristae
• The function of the Eustachian tube is to maintain pressure in the middle ear.