A handful of printable human ear diagrams in high definition and quality are available for free! When you are learning about human’s ear anatomy, using diagrams can be so helpful for you to know about the auditory organ more specifically. The ear is a multifaceted organ that connects the central nervous system to the external head and neck. This structure as a whole can be thought of as 3 separate organs that work in a collective to coordinate certain functions, such as hearing and balance. To see deeper into the ear anatomy, take a look at the first diagram below.
As you can see in the image of the human ear diagram above, the ear can be seen as three parts: the outer ear, the middle ear and the inner ear, and each with a dedicated function. The outer ear is called the pinna and is made of ridged cartilage covered by skin. Its function is to guide air pressure waves to the middle ear. The middle ear consists of the ear drum (tympanic membrane), attached to the inner ear through a delicate bone structure (malleus, incus and stapes). The inner ear consists of the cochlea – basically a rolled-up tube. The middle ear’s stapes connects to the cochlea’s ‘oval window’. The rolled-up tube contains a tuned membrane populated with approximately 15,500 hair cells and is dedicated to hearing. Below are the more detailed and bigger look of the diagrams.
And if you are wondering about how we can hear sound, it is because sound waves travel through the outer ear, are modulated by the middle ear, and are transmitted to the vestibulocochlear nerve in the inner ear. This nerve transmits information to the temporal lobe of the brain, where it is registered as sound. The ear also facilitates two types of balance: static balance, which allows a person to feel the effects of gravity, and dynamic balance, which allows a person to sense acceleration. More diagrams are posted as follows.
The anatomy of the ear looks simple but actually it is quite complex. By using these diagrams, you’ll know further about the structure of the human ear in its illustration. Find the other diagrams of anatomy in this site for more references of biology!