The outer ear is known as

Correct option is A

• The outer ear is known as the pinna. It is the visible part of the ear that helps capture sound waves and directs them into the ear canal. The pinna plays a significant role in the process of hearing by funneling sound towards the eardrum. It is made of cartilage and skin and is shaped in a way that enhances the ability to detect sound from different directions. The pinna, along with the ear canal, forms the outer ear, which works in conjunction with the inner and middle ear to transmit sound signals to the brain.

• The pinna helps amplify sound waves and aid in their direction towards the ear canal, improving the ability to detect sound from specific sources.
• It is made up of cartilage and skin and is highly flexible, allowing it to maintain its shape while providing the necessary functions for hearing.
• The shape of the pinna is unique to each individual, and it plays a role in the localization of sound, helping us determine where a sound is coming from.
• The pinna is part of the outer ear, which also includes the ear canal and eardrum, working together to transmit sound to the inner ear.
• Damage to the pinna or its functions can affect sound localization and the overall ability to hear.

• Cochlea is part of the inner ear and is responsible for converting sound vibrations into neural signals that are sent to the brain.
• Eardrum  is located in the middle ear and vibrates when sound waves strike it, transferring sound energy to the ossicles (tiny bones in the middle ear).
• Hammer  is one of the three ossicles in the middle ear (the others being the anvil and stirrup) that help transmit sound vibrations from the eardrum to the inner ear, but it is not part of the outer ear.