12/2/2023 0 Comments Auditory canal function![]() If left undrained, severe cases could lead to necrosis of the cartilage-a condition commonly known as cauliflower ear The blood may reabsorb on its own, but more severe causes could require drainage by a healthcare professional. It is typically caused by trauma, and is a common sports injury. Auricular hematoma: This is a condition where blood collects between the cartilage of the ear and the overlying layer of skin.The eardrum is the ending point of the outer ear and the beginning of the middle ear It’s a hollow tube that curves slightly downward as it moves into the ear toward the tympanic membrane, or eardrum. External acoustic meatus: This inch-long section is sometimes called the ear canal, and serves as the bridge between the outer and middle ear.Since this section is softer and has a larger blood supply than the rest of the ear, it is thought to help keep the rest of the ear warm It is the only part of the outer ear that is not supported by cartilage. Lobule: The lobule is the bottom-most part of the ear, often called the earlobe.Tragus and antitragus: These two cartilage prominences border the concha at the top and bottom.The concha is the final point that directs sound into the ear Concha: The concha is the depressed area at the opening of the middle ear, or the external acoustic meatus.These shapes work together to funnel sound waves collected at the helix toward the middle ear Fossas are the depressions between these ridges. The antihelix is the lowest extension of this ridge. The inferior crus is an extension of the superior crus, branching off toward the head. The superior crus is the first ridge that emerges moving in from the helix. Fossa, superior crus, inferior crus, and antihelix: These sections make up the middle ridges and depressions of the outer ear. ![]() The helix begins the funneling of sound waves into the ear
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