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1-Which is the LAST part of the retina that a photon passes through before it is captured by an opsin protein?
Photoreceptor inner segment
Photoreceptor outer segment
Bipolar cell layer
2-Ganglion cell layer Visual information travels down the optic nerve first to the ____________ and from there to the primary visual area V1.
Medical geniculate nucleus of the thalamus
Lateral geniculate nucleus of the thalamus
Hippocampus
3- Glomerulus The combined response of the three opsins in cone cells (S, M, and L) produces a relatively unique signal for each wavelength of light in the visible spectrum. This supports the __________ theory of color vision.
Trichromatic
Color-opponent
4-Gestalt As you move from V1 to V5 and higher visual centers, receptive fields of individual neurons as indicated by "preferred stimuli" get:
More simple
More complicated
More grandmother-like
More surround inhibition
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Sense organs are extensions of the central nervous system that allow it to monitor what is happening within and outside the animal. Sensory receptors, which are specially modified nerve terminals, generate a nerve impulse (when stimulated by a suitable stimulus) that travels to the CNS and is interpreted. Sensory receptors respond to mechanical, thermodynamic, electromagnetic, and chemical stimuli.
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