You are describing the "ear canal".
There are certain risks associated with ear tube placement, although they are generally considered safe procedures. Common risks include infection, bleeding, scarring, and persistent ear drainage. Less common risks can include damage to the eardrum or small bones in the ear, and the rare risk of hearing loss or balance problems. It is important to discuss these risks with a healthcare professional before considering ear tube placement.
The eustachian tube connects the throat to the inner ear and equalises the inner and outer ear pressure. It is this which causes the pop! when you fly in an aircraft and you swallow. The pop is the eustachian tube clearing.
The ear has three chambers: outer, middle and inner ears.Outer ear: pinna/auricle, auditory canal, tympanic membraneMiddle ear: tympanic membrane, ossicles, oval window and auditory tubeInner ear: oval window, cochlea, vestibule, semicircular canals & auditory nerveSound waves travel into the auditory canal and strike the tympanic membrane.The tympanic membrane vibrates.Sound vibrations are amplified and transmitted by the ossicles to the oval window.Vibrations are transferred to fluid environment of the inner ear, converted into electrical energy and sent to the brain for interpretation.
The ear
Eustachian tube.
The ear canal is the part of the outer ear that is a tube lined with tiny hair like features. The ear canal leads into the ear from the bottom of the auricular and is what conducts the vibrations.
Ear canal
Cochlea i think
CAMEL
The Eustachian tube connects the back of the nose to the middle ear. It is a small tube that is only three to four centimeters long.
The coiled tube of the inner ear is called the Cochlea.
The Eustachian tube which drains fluid from the eardrum to the throat The tube is about 3.6cm long, made up of cartilage and bone, and lined with very tiny hairs (called cilia). It is connected to the cavity of the middle ear, and at the bottom opens into the nasopharynx (located in the back of the mouth). If excess fluid builds up in the middle ear, it drains down the Eustachian tube into the throat.
Your Eustachian Tube connects your ear to your nose.
Hold the horse's ear so it is closed. Then run your electric clippers along their ear to trim. I've used and seen this method is used to make their ears look nice and trim, the cut hair generally will not fall into their ear, it deafens the sound of the clippers (which should be small hand-held) and you leave the small hairs inside the ear alone.
The Eustachian joins the ear to the throat
When a conventional myringotomy is performed, the ear is washed, a small incision made in the eardrum, the fluid sucked out, a tube inserted, and the ear packed with cotton to control bleeding.
Eustachitis is inflammation or infection of the Eustachian tube, a small passage that connects the middle ear to the upper throat. Symptoms can include ear pain, hearing difficulties, and pressure in the ear. Treatment may involve pain relief medications and managing any underlying infection.