This topic contains a solution. Click here to go to the answer

Author Question: What are the three major structures that compose the ear?[br][br][b][color=#A83E49]Question ... (Read 15 times)

EY67

  • Hero Member
  • *****
  • Posts: 531
What are the three major structures that compose the ear?

Question 2

Each (outer/inner) ___________________ _ hair cell shares innervation with as many as 10 other hair cells.
 Fill in the blank(s) with correct word



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ecox1012

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

The three major structures that make up the ear are:

The outer ear that is composed of the pinna (auricle) and the external auditory meatus (EAM), or ear canal. The pinna is what we call the ear. The pinna collects sound that is processed in the middle ear and cochla. Cartilage provides a framework for the pinna. The external auditory meatus (EAM) is the external ear canal. The EAM and cochlea are both resonating cavities that contribute to hearing. The tympanic membrane or eardrum is located at the end of the EAM.

The middle ear contains the ossicles, which are the three smallest bones in the body. The ossicular chain houses the malleus, the incus, and the stapes. The malleus is the largest of the ossicles. This bone provides the point of attachment to the tympanic membrane. The incus is shaped like an anvil. It provides the intermediate link of the ossicular chain. The stapes, or stirrup, is the third bone of the ossicular chain. It is involved in transmitting sound vibrations from the eardrum to the oval window.

The inner ear, which houses the vestibular system and the cochlea. The vestibular system contains sensors for balance, while the cochlea contains sensors for hearing. Important structures housed within the inner ear include the osseous vestibule, the osseous semicircular canals, the osseous cochlear labyrinth, and the membranous labyrinth. The vestibule provides the entrance to these structures.

Answer to Question 2

outer




EY67

  • Member
  • Posts: 531
Reply 2 on: Jul 4, 2018
Great answer, keep it coming :)


Alyson.hiatt@yahoo.com

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

For a complete list of videos, visit our video library