File:The physiology and hygiene of the house in which we live (1887) (14594937080).jpg

Identifier: physiologyhygien00hatf (find matches)
Title: The physiology and hygiene of the house in which we live
Year: 1887 (1880s)
Authors: Hatfield, Marcus P. (Marcus Patten), 1849-1909
Subjects: Physiology Hygiene
Publisher: New York : Chautauqua Press
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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containing fluid, something asif each vertebra was guarded fromshock by having a tiny water-pillowplaced between it and its neighbor.A man is about a quarter of an inchshorter at night than in the morning. The reason for this is, that these little A-a diagrammatic section-,.,,.,, v. , -of the human body taken verti- disks shrink by continued pressure of Caiiy through the median plane. the day and expand after a nights c.s., the cerebrospinal nervous r* ,. t , system; N, the cavity of the rest. Continued unequal pressure may nose. Mt that of the mouth; tilt the Spine to One side or the Other Al. AL, the alimentary canali .I ,i • i • ,i • • /» represented as a simple straight by the thickening or thinning of one tuJ)e; ^theheart;D,thedia-side of these intervertebral disks, thus pbragm; Sty, the sympatheticproducing curvature of the spine; and &w&*»-Huxiey.one of the ways in which this is done is by the unlady-liketrick of sitting upon one foot. It is too bony to make a
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42 Physiology and Hygiene. good cushion, and is responsible for not a few crooked spines,as may be seen by closely watching any large audience.There are rickety houses, and so there are rickety children,or those whose bones are so soft that the body is bent all outof shape. Later in life these twisted bones harden, as allbones do with advancing age, and the result is that the bodybecomes permanently twisted and deformed. Again, thismay happen from increased fragility of the bones, which maybe so great as to lead to fracture from the slightest violence.A slight degree of this is found in all old persons. The boys on the streets call their heads cocoa-nuts;and this idea of the skull being a shell is as old as the earlyDanes, who called it hierneskall (brain shell). The skullis really an oval box made of eight bones, neatly dove-tailedtogether. This box shows in a beautiful manner the exqui-site care that has been taken to guard from all harm whatbrains have been allotted us. Architects

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