Question

name the structure that carries visual stimuli from retina to the brain​

Answer 1

The optic nerve is the pathway that carries the nerve impulses from each eye to the various structures in the brain that analyze these visual signals.

Answer 2

Answer:

The visual pathway is presented in Figures 11-1 and 11-2 and Table 11-1. Methods of testing vision are discussed in Chapter 1. The visual pathway begins with the retina. The outermost layer of the retina is composed of the photoreceptors, dendritic processes of the rod and cone neurons. Photoreceptors are distributed throughout the retina, but a greater density of receptors is located in the area centralis, which is important for acute vision. Excited by light, photoreceptors are in synaptic relationship with the second neurons of the visual pathway, bipolar neurons. In turn, bipolar neurons interact with the third neuron in the visual pathway, ganglion neurons. Axons of the retinal ganglion cell neurons coalesce to form the optic disc and course in the optic nerve. At the optic chiasm, axons originating from the medial (nasal) retina decussate and continue as the contralateral optic tract. Axons from the lateral (temporal) retina remain ipsilateral (do not cross at the chiasm) and course in the ipsilateral optic tract.

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