No, external auditory meatus and external acoustic meatus refer to the same structure, which is the ear canal that leads from the outer ear to the eardrum.
The external opening of the urethra is called the meatus or urethral meatus.
meatus
This is the external opening of the urethra.
Any passage or opening leading to the interior of the body is known as a meatus. The external opening through which urine passes out of the body is called the urinary meatus.
False. The structure responsible for equalizing pressure in the middle ear with the outside is the Eustachian tube, not the external auditory meatus. The external auditory meatus is the passage that leads sound waves from the external ear to the middle ear.
External auditory meatus
The external acoustic meatus is a foramen in the temporal bone of the skull. Its main function is to allow sound waves to travel from the outer ear to the middle ear.
The glands that line the external auditory meatus are called ceruminous glands. They produce cerumen (earwax) to protect and lubricate the ear canal.
The tympanic membrane (eardrum) separates the external auditory meatus (ear canal) from the middle ear. It vibrates in response to sound waves entering the ear canal and transmits these vibrations to the middle ear ossicles.
Sound waves travel through the external acoustic meatus, also known as the ear canal. These waves are directed towards the eardrum, causing it to vibrate and initiating the process of hearing.
external auditory meatus