猫的神经和内分泌系统特性

作者：health521 来源：互联网通发布时间：2007-8-5 19:10:51

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,

　　猫的神经系统由中枢神经系统和外周神经系统两部分组成。其中中枢神经系统包括脑和脊髓。脑由延脑、脑桥、小脑、中脑、间脑、端脑组成。

　　脊髓是脑部向下的延续，位于椎管内，呈圆柱形。外周神经系统由脑神经、脊神经和植物性神经几部分组成。其中脑神经12对，脊神经约40对（分颈部、胸部、腰部、骶部四段）。植物性神经包括交感神经节、副交感神经节和神经丛三部分。

　　猫内分泌系统，主要是指在体内分泌激素的无管腺，即腺体没有导管。

　　其分泌的激素直接释放到体液和血液中，主要包括甲状腺、甲状旁腺、肾上腺、胰岛、脑垂体、性腺等。

　　神经系统和内分泌系统调节着机体各器官之间以及机体与外界环境之间的相互关系，对维持动物机体的新陈代谢和正常生理功能均有着重大意义。

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