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15. The Special Senses

Inner Layer of the Eyeball

15. The Special Senses

Inner Layer of the Eyeball

Open Question
Since there are only three types of cones, how can you explain the fact that we see many more colors?
Multiple Choice
True or False: if false, choose the answer that corrects the statement.

Waves of light must pass through both the ganglion and pigmented cells before reaching the photoreceptors.
Multiple Choice
Once light is absorbed, what is the path of the nervous signal?
Multiple Choice
Which part of the neural layer continues into and becomes the optic nerve?
Multiple Choice
Which of the following statements is true for cones.
Multiple Choice
Different animal species differ in the relative number of rods and cones that are present in their eyes. Which of the following statements would you expect to be true about these differences?
Multiple Choice
On the image of the retina below, identify the structures located in each circle.
Multiple Choice
The vast majority of refractive problems in the eye are related to the __________.
Multiple Choice
When focusing on a distant object, the lens is __________.
Open Question
Which sequence best describes a normal route for the flow of tears from the eyes into the nasal cavity?a. lacrimal canaliculi, lacrimal sacs, nasolacrimal ducts;lb. acrimal ducts, lacrimal canaliculi, nasolacrimal ducts;c. nasolacrimal ducts, lacrimal canaliculi, lacrimal sacs.