The anatomist's vade mecum : a system of human anatomy . he fibro-cartilage is wholly deficient. Thefibro-cartilage of the meatus is divided from the concha by severalfissures (fissures of Santorinus), and at the upper and anterior part ofthe cylinder there is a considerable space, which is closed by ligamentousfibres; it is firmly attached at its termination to the processus auditorius. The Ligaments of the external ear are those which attach the pinnato the side of the head, viz. the anterior, posterior, and ligament ofthe tragus; and those of the fibro-cartilage, which serve to preserveits
The anatomist's vade mecum : a system of human anatomy . he fibro-cartilage is wholly deficient. Thefibro-cartilage of the meatus is divided from the concha by severalfissures (fissures of Santorinus), and at the upper and anterior part ofthe cylinder there is a considerable space, which is closed by ligamentousfibres; it is firmly attached at its termination to the processus auditorius. The Ligaments of the external ear are those which attach the pinnato the side of the head, viz. the anterior, posterior, and ligament ofthe tragus; and those of the fibro-cartilage, which serve to preserveits folds and connect the opposite margins of the fissures. The latterare two in number, the ligament between the concha and the processus L L lU MUSCLES OF THE PINNA. caudatuSj and the broad ligament which extends from the uppermargin of the fibro-cartilage of the tragus to the helix, and com-pletes the meatus. The proper Muscles of the pinna are the— Major helicis, Antitragicus, Minor helicis, Transversus auriculae, Tragi cus, Obliquus auris. Fig. 169*. The Major helicis is a narrow band of muscular fibres situated uponthe anterior border of the helix. It arises from the spine of the helixand is inserted into the anterior border. The Minor helicis is placed upon the anterior extremity (crus) ofthe helix, at its commencement in the fossa of the concha. * The pinna and its muscles. After Arnold. 1, 1. The helix. 2. Thecrus helicis. 3. The spina helicis. 4. The processus caudatushelicis. 5. Theantihelix. 6,6. The crura antihelicis. 7. The fossainnominata or The fossa triangularis. 9. The concha. 10. The tragus. 11. The anti-tragus. 12. Incisura intertragica. 13. Attrahens aurem. 14. AttoUensaui-em. 15. Retrahens aurem. 16. The major helicis muscle. 17. Theminor helicis. 18. The tragicus. 19. The antitragicus. MUSCLES OF THE PINNA. 515 The Tragicus is a thin quadrilateral layer of muscular fibres,situated upon the tragus. The Antitragicus arises from the antitragus, a
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