2. Classification of receptors.
3. Properties of receptors.
(a) Specificity of response.Adequate and inadequate stimulus. Receptor potential.
(b) Adaptation (tonic and phasic receptors)
(c) Doctrine of specific nerve energies
(d) Intensity discrimination (Weber-Fechner Law)
4. Sensory unite.
5. The structure of eyeball.Retina.
6. Accomodation, defects of the image-forming,correction.Near point of vision.Presbyopia.
7. Pupillary reflex.Its significance in medical practice.
8. The photoreceptor mechanism.
9. Neural pathways: optic nerve,chiasma and tract,geniculocalcarine tract.
10. Visual cortex. Primary and association areas.
11. Characteristics of vision:colour vision,visual acuity,critical fusion frequency,visual fields,binocular vision.
>>Read textbook p.115-120,144-163
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