chin nor the pointed head, but is merely a sloping of the face upward and downward from the cheek bones as a result of the unusual width of the nose section. (See Chart 4) His Well-Developed Nose The nose section is also high and wide because the typical Thoracic has a nose that is well developed. This is shown not only by its length but by its high bridge. [Illustration: 4 Typical Thoracic face] The cause for the width and length of this section is obvious. The nose constitutes the entrance and exit departments of the breathing system. Large lung capacity necessitates a large chamber for the intake and expulsion of air.
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