Human Anatomy - Zinoviy Mirchuk, Maryna Mirchuk 2007

Muscles of Body Regions
Ear

The ear (Fig. 19) is located at the level of the zygomatic arch, approximately equidistant from the chin and the cranial vault. The ear is elliptical in shape, with its longitudinal axis running parallel to the bridge of the Nose. It is subdivided into the external, middle, and Inner ear.

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Fig. 19 The ear:

1 — helix; 2 — triangular fossa;

3 — antihelix; 4 — tragus;

5 — auricle; 6 — antitragus;

7 — lobule; 8 — scapha.

The External ear consists of the auricle (pinna) and the external acoustic meatus. The auricle is situated in the temporal region and is formed by auricular Cartilage covered with Skin. The lower part of the auricle, which lacks cartilage, is called the lobule or earlobe. In addition to this Structure, the auricle features the helix (a thickened posterior margin), the scapha (a trough-like depression located anterior to the helix), the antihelix (which bounds the scapha anteriorly), the tragus (a triangular prominence situated in front of the acoustic meatus), and the antitragus (located opposite the tragus). Several poorly developed Muscles lie beneath the skin of the auricle.

Fig. 20 Chart from Julien's manual