. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. f these substances at differ-ent periods of life ? 19. WWt offices do the fluids of thp system perform?20. What is said of the poljia I Fow ar<» the particles of matter ar-ranged in solids ? 21. Give an •vrran^ement of the parts of the * 18 ANATOMY, PHYSIOLOGY, AND HYGIENE. 22. A FILAMENT is composed of minute particles of mat-ter, arranged in a row. 23. A FiBEE is composed of several filaments united, eachof which is enclosed in a sheath. 24. A TISSUE is the interlacement or union of fibr
. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. f these substances at differ-ent periods of life ? 19. WWt offices do the fluids of thp system perform?20. What is said of the poljia I Fow ar<» the particles of matter ar-ranged in solids ? 21. Give an •vrran^ement of the parts of the * 18 ANATOMY, PHYSIOLOGY, AND HYGIENE. 22. A FILAMENT is composed of minute particles of mat-ter, arranged in a row. 23. A FiBEE is composed of several filaments united, eachof which is enclosed in a sheath. 24. A TISSUE is the interlacement or union of fibres ; as,the cellular tissue. 25. An ORGAN is composed of tissues so arranged as toform an instrunient designed for action. The action of anorgan is called its function^ or use. Example. The liver is an organ, and the secretion of thebile fiom the blood is one of its functions.* 26. An APPARATUS is an assemblage of organs designed-to produce certain results. * Example. The digestive apparatus consists of the teeth,stomach, liver, &;c., all of which aid in the digestion of food. Fi2. Fig. 2. 1. A fibre enclosed in its sheath. 2. A filament very highly magnifled3. A fibre greatly magnified. 27. The term system is applied to an assemblage oforgans arranged according to some plan, or method ; as thenervous system, the respiratory system. * Where exajiiples and observations are given-or experiment*suggested, let the pupil mention other analogous ones. 22. Define a lilament. 23. Dciiue a fibre. 24. Define a De-fine an organ. AVhat is the action of an organ called ? Give ot/irr eraniplcs. 26. \\Tiat is an njparatus ? Gi»e an , How is the term .syfitcni applied ? STRUCTURE OF MAN. 19 28. A MEMBRANE is the simplest form of organized animalsubstance. It is flexible, and formed of fibres interwoven likenet-work ; as, the mucous membrane. 29. However various all organs may appear in their struc-ture and composition, it is now supposed that th
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