Question

The light stricking the retina generates nerve impulse. Which of the following options correctly describes the path of light?

• A. $Photosensorycells\to Bipolarneurons\to Ganglioniccells\to Sensorynerves$
• B. $Sensorynerves\to Bipolarneurons\to Ganglioniccells\to Photosensorynerves$
• C. $Sensorynerves\to Ganglioniccells\to Bipolarneurons\to Photosensorycells$
• D. $Photosensorycells\to Ganglioniccells\to Bipolarneurons\to Sensorynerves$

Answer 1

The correct option is C $Sensorynerves\to Ganglioniccells\to Bipolarneurons\to Photosensorycells$

A retinal ganglion cell (RGC) is a type of neuron located near the inner surface (the ganglion cell layer) of the retina of the eye. It receives visual information from photoreceptors via two intermediate neuron types: bipolar cells and retina amacrine cells. Retina amacrine cells, particularly narrow field cells, are important for creating functional subunits within the ganglion cell layer and making it so that ganglion cells can observe a small dot moving a small distance. Retinal ganglion cells collectively transmit image-forming and non-image forming visual information from the retina in the form of action potential to several regions in the thalamus, hypothalamus, and mesencephalon, or midbrain.

So the correct option is 'Photosensorycells→Bipolarneurons→Ganglioniccells→Sensorynerves'.