File:A treatise on anatomy, physiology and hygiene - designed for colleges, academies and families (1850) (14598144808).jpg

Identifier: treatiseonanatom00cutt (find matches)
Title: A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families
Year: 1850 (1850s)
Authors: Cutter, Calvin, 1807-1873?
Subjects: Physiology Anatomy Hygiene Anatomy Physiology Hygiene
Publisher: Boston : B.B. Mussey
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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on the surfaceof ilie cuticle, namely, the pores, is also deserving of atten-tion. In consequence of its extremity being a section of aspirully-twisled tube, the aperture is oblique in direction, andpossesses all the advantages of a valvular opening, preventingthe ingress of foreign injurious substances to the interior of thetube and gland. 634. To arrive at something like an estimate of the valueof the perspiratory system, in relation to the rest of the orgaa*ism, I coinied the perspiratory pores on the palm of the hand,and found 3528 in a square inch. Now each of these poresbeing the aperture of n little tube about a quarter of an inch What is said of the retention of the unctuous matter in ttie oil-tubes ?G32. Of what does the perspiratory apparatus consist ? 63J. What ispeculiar in the opening of the perspiratory tubes on the surface of the cu,ti-cle ? 634. How many perspiratory pores did Dr. Wilson count upon asquare inch of skin on the palm of the hand ? ANATOMY OF THE SKIN. 291
Text Appearing After Image:
V\g 116. A perspiratory gland from the palm of the hand, magnified forty diaTn»-ten. 1, 1, A twisted tube composing the sLind. 2, 2, Tlje two exeretur) ductsfrom the gland. These unite to form one spinil tube, that perforates the cuticle, (3,)and opens obliquely on its surface at 4. The gland is imbedded in cells filled witJifat, which are seen at 5, 5. What does fig. 116 represent ? 292 ANATOBIY, PHYSIOLOGY, AND TIYGIENie. long, it follows, that in a square inch of skin on the palmof the hand there exists a length of tube equal to 882 inches,or 73) feet. Surely such an amount of drainage as seventy-three feet in every square inch of skin — assuming this to be ,the average for the whole body — is something wonderful;iMui the *iougiit naturally intrudes itself, What if this drainagel)e obstructed ? G35. Could we need a stronger argument for enforcingthe necessity of attention to the skin ? On the pulps of thefuigers, where the ridges of the sensitive layer of the trueskin are some

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