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                                           Human essence of art, the human feelings of the perfect lens
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猫的被毛系统特征
作者:health521  来源:互联网通  发布时间:2007-8-5 19:10:50
Body art from the West, male body is mainly a reflection of the strength of the United States. While the female body is mainly a reflection of the kind of a female-specific negative of tender.
Body art is static human form, does not contain sexual intercourse is exposed genitals or other to tease of limb movements. Good photographs focus on the human body is the use of light and shadow. The body was naked from the arts, the human body art is not carnal desire , vulgar. Accurately speaking, and now, the "body art" is not very precise. Art classification is based on the auditory,

  猫最引人注目的地方是那一身美丽的被毛。被毛和皮肤不仅构成了猫漂亮的外貌,而且还有十分重要的生理功能。

 
  皮肤和被毛是猫的一道坚固的屏障,它能防止体内水分的丢失,抵御某些机械性的损伤,保护机体免受有害理化作用的损伤。皮肤及被毛在寒冷的冬天,具有良好的保温性能,使猫具有较强的御寒能力。在夏天,被毛又是一个大散热器,起到降低体温的作用。

  猫皮肤里有许多能感受内外环境变化的感受器。感受器能感受一种或数种刺激,如冷、热、触觉、压觉、痛觉等。

  猫毛从皮肤毛囊内生长出来,毛囊呈细长袋状。猫毛囊有两种,一种是只长一根毛的孤立毛囊,另一种是长有多根毛的复合毛囊。猫毛囊以复合毛裳为主。因此,猫的被毛很稠密,大约每平方毫米200根左右。被毛可分为针毛和绒毛两种。猫皮肤里还有皮脂腺和汗腺。皮脂腺的分泌物呈油状,能使被毛变得光亮、顺滑。猫汗腺不发达,故不能象人的汗腺那样参加体温调节。猫散热是通过皮肤辐射散热或呼吸散热的。

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