A text-book on diseases of the ear, nose and throat . the three hillocks 4, 5, and 6 of the hyoidal arch originates aparallel ridge that becomes the cauda helicis of His. The second hillock,or tubercle No. 1, forms the tragus, hillock No. 5 the antitragus, hillockNo. 2 the cms helicis, and hillock No. 3 and the cauda unite to form thecomplete helix. The fourth hillock, the tuberculum anthelicis, finallyforces itself forward within the helix and becomes the anthelix. The furrow bounded by the auricular hillocks and extending in adorso-ventral direction, with indentations between every two hillo
A text-book on diseases of the ear, nose and throat . the three hillocks 4, 5, and 6 of the hyoidal arch originates aparallel ridge that becomes the cauda helicis of His. The second hillock,or tubercle No. 1, forms the tragus, hillock No. 5 the antitragus, hillockNo. 2 the cms helicis, and hillock No. 3 and the cauda unite to form thecomplete helix. The fourth hillock, the tuberculum anthelicis, finallyforces itself forward within the helix and becomes the anthelix. The furrow bounded by the auricular hillocks and extending in adorso-ventral direction, with indentations between every two hillocks, iscalled by His the fossa augularis (Fig. 1). A transverse ridge, the centraltubercle, in about the middle of its course, divides the fossa angularisinto an upper and a lower portion, the latter finally deepening into theconcha proper and the external auditory canal. The Developed Auricle.—Fig. 2 represents the auricle of a new-born malechild, with converging hairs on the highly develox)ed Darwinian ear-point. 3 shows the auricle of a Fig. Auricle of a ) Fig. woman with well-marked Dar-winian ear-point. Fig. 4 showsthe auricle of an adult man,with the Darwinian ear-point atc. This latter part in the auricleof man corresponds to the pointedear of the lower animals. Theauricle consists of a fold of theskin of the face reflected over ashell-shaped cartilaginous sup-port, the various convolutions andsurfaces of which it closely andtightly follows, passing inwardwith it into the cartilaginous partof the external auditory cartilaginous framework of Auricle of a new-born male child. () the human auricle extends inwardat the concha into the porus acusticus externus of the temporal bone, andis united to the free outer edge of the osseous external auditory thus forms about one-third of the external auditory canal, the innertwo-thirds being formed of bone. The cartilage of the auricle is further-more held in place by ligaments and de
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