ears

• it provides a senses of equilibrium and hearing?

  ears
• informs us of the position of the

  body in space by monitoring gravity, linear

  acceleration, and rotation?

  equilibrium
• enables us to detect and interpret

  soundwaves?

  hearing
• the 3 anatomigal region of the ear?

  external ear, middle ear, and inner ear
• visible portion of the ear, collects and directs soundwaves to the eardrum?

  external ear
• surrounds the entrance to the external auditory canal?


  pinna
• collects and convey soundwaves to the tympanic membrane?

  pinna
• Extends from the concha to the tympanic membrane, Its length, from the floor of the concha, is approximately 2.5 cm and from the tragus about 4 cm?

  external auditory meatus
• EAM has two structurally different parts, the lateral third being _and the medial two-thirds _?

  cartilaginous, osseous
• slows down the growth of bacteria and reduces the chances of infection?

  ceruminous glands
• it seperates the external and middle ear?

  tympanic membrane
• tympanic membrane transmits soundwaves along the _ to the inner ear?

  auditory ossicles
• in the tympanic membrane, the deepest part of which is the?

  umbo
• also known as tympanic cavity?

  middle ear
• it is the space in the petrous temporal bone lined by mucous membrane?

  middle ear
• the cavity has two parts?

  tympanic cavity and epitympanic recess
• muscles of middle ear?

  tensor tympani and stapedius
• bones in the middle ear?

  malleus, incus, and stapes
• this is located in the petrous part of the temporal bone?


  inner ear
• equilibrium and hearing are provided by the receptors of the?

  inner ear
• the two labyrinths?

  bony labyrinths and membranous labyrinths