生理学教案第九章 感觉器官的功能(Physiological teaching plan ninth chapter function of sensory organs).docVIP

生理学教案第九章 感觉器官的功能(Physiological teaching plan ninth chapter function of sensory organs).doc

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生理学教案第九章 感觉器官的功能(Physiological teaching plan ninth chapter function of sensory organs)

生理学教案第九章 感觉器官的功能(Physiological teaching plan ninth chapter function of sensory organs) The ninth chapter is the function of sensory organs Section 1 receptors and their general physiological characteristics First, the definition and classification of receptors and sensory organs: 1., according to the nature of the stimulus, it can be divided into mechanical receptor, temperature receptor, nociceptive receptor, electromagnetic receptor and chemoreceptor 2., according to the location of distribution, it can be divided into: internal receptor and external receptor Two. The general physiological characteristics of sensilla (1) proper stimulation of receptors (adequate, stimulus); (two) the transducing function of receptor (transduction): receptor potential and generator potential (three) the encoding (coding) function of the receptor: principle line (labeled) (four) receptor adaptation (adaptation) phenomenon: fast adaptive receptor; slow adaptive receptor The visual function of second eyes I. the refractive system of the eye and its accommodation: the optic medium of the eye includes the cornea, the aqueous humor, the lens, and the vitreous body (1) the optical characteristics of the refractive system of the eye (two) refraction of ocular light and eye (reduced): Refraction of light in the eye is extremely complex. The simplified eye is a model of artificial illusion, whose optical parameters and other features are equivalent to the normal eye. By using simplified eyes, the image size of different near and near objects can be calculated conveniently, so that the resolution of eye to image can be detected, and the method of checking visual acuity (visual, acuity) can be established. The ability of normal eyes to discern the size of the retina, i.e., visual acuity or visual acuity: 5 m, approximately equal to the average diameter of cones in the fovea. (three) eye accommodation (accommodation); When you see distant objects (6 meters away) without adjustment, it is necess

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