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anotia, absent pinna [7] microtia, underdeveloped pinna [7] cryptotia, a pinna covered beneath the skin of the scalp [5] Stahl's deformity, pointed pinna due to an extra fold of cartilage [5] cupped or constricted ear deformity, a hooded superior helix [5] preauricular pit [8] preauricular tag [8] Darwin's tubercle, protuberance on the anterior ...
The tragicus is a short, flattened vertical band on the lateral surface of the tragus. Also known as the mini lobe. The antitragicus arises from the outer part of the antitragus, and is inserted into the cauda helicis and antihelix. The transverse muscle is placed on the cranial surface of the pinna.
The tragus is a key feature in many bat species. As a piece of skin in front of the ear canal, it plays an important role in directing sounds into the ear for prey location and navigation via echolocation. [6] Because the tragus tends to be prominent in bats, it is an important feature in identifying bat species. [7]
The tragus protrudes and partially obscures the ear canal, as does the facing antitragus. The hollow region in front of the ear canal is called the concha. The ear canal stretches for about 1 inch (2.5 cm). The first part of the canal is surrounded by cartilage, while the second part near the eardrum is surrounded by bone.
It is separated from the tragus by the intertragic notch. The antitragicus muscle, an intrinsic muscle of the ear, arises from the outer part of the antitragus. [1] [2] The antitragus can be much larger in some other species, most notably bats. The antitragus can be pierced. [3]
The antihelix (anthelix) is a part of the visible ear; the pinna.The antihelix is a curved prominence of cartilage parallel with and in front of the helix on the pinna.. The antihelix divides above into two legs or crura; the crura antihelicis, between which is a triangular depression, the fossa triangularis.
Preauricular to preauricular (or tragus to tragus: the tragus refers to the small portion of cartilage projecting anteriorly to the pinna). The preauricular point is in front of each ear, and can be more easily located with mild palpation, and if necessary, requesting patient to open mouth slightly.
Tenderness of pinna [6] is the predominant complaint and the only symptom directly related to the severity of acute external otitis. Unlike other forms of ear infections, there is tenderness in outer ear, [ 6 ] i.e., the pain of acute external otitis is worsened when the outer ear is touched or pulled gently.