Test_10_Anwsrs

Test_10_Anwsrs - Test 10 Test 10 1 What is absorption...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Test 10 Test 10 1. What is absorption? Choose the correct option. A) The bouncing of light rays off a surface B) The bending of light rays from one transparent medium to another C) The transfer of light energy to a particle or surface D) The bouncing of light rays from one transparent medium to another 2. If the cornea has a refractive power of about 42 diopters, at what distance will the parallel light rays strike the corneal surface? Choose the correct option. A) 0.024 m behind the corneal surface B) 2.4 mm behind the corneal surface C) 0.024 cm behind the corneal surface D) 0.24 cm behind the corneal surface 3. Which cells in the retina have axons that leave the retina? Choose the correct option. A) Photoreceptors B) Bipolar cells C) Ganglion cells D) Photoreceptors, bipolar cells, and ganglion cells 4. Most of the eyes refractive power is accomplished by what structure? Choose the correct option. A) Lens B) Cornea C) Aqueous humor D) Vitreous humor 5. What is the difference between ON-center ganglion cells and OFF-center ganglion cells? Choose the correct option. A) ON-center ganglion cells constitute about 90% of the ganglion cell population while OFF-center ganglion cells constitute about 5% of the ganglion population. B) ON-center ganglion cells respond to stimulation of their receptive field centers with a transient burst of action potentials while OFF-center ganglion cells respond with a sustained discharge. C) ON-center ganglion cells receive input from ON bipolar cells while OFF-center ganglion cells receive input from OFF bipolar cells. D) In an ON-center ganglion cell, the response to stimulation of the center is canceled by the response to stimulation of the surround and this response cancellation does occur in an OFF-center ganglion cells.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
TEST 10 Page 2 of 4 6. How do we focus on objects located at a distance less than 9 m from the eye? Choose the correct option. A) A change in the shape of the cornea B) A change in the shape of the lens C) A change in the length of the eye ball D) Change in the shape of the cornea, lens and in the length of the eye ball 7. A center-surround receptive field consists of concentric circles with antagonistic
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This test prep was uploaded on 04/15/2008 for the course CBNS 106 taught by Professor Korzus during the Winter '08 term at UC Riverside.

Page1 / 4

Test_10_Anwsrs - Test 10 Test 10 1 What is absorption...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online