There are types of neurons in the retina of the eye that first respond to visual stimuli (light). 3.

Pathway of light Optic disc Central artery- and vein of retina Photoreceptors Pathway of signal output Pathway of light (b) Cells of the neural layer of the retina (a) Posterior aspect of the eyeball Retina: Neural layer Pigmented layer Choroid Sclera Optic nerve 47 (c) Photomicrograph of retina Using the provided tissue section (or part c above), diagram the layers of the retina. Highlight the different layers, neurons, inner layer, outer layer, the pathway of light, and direction of signal output. 50 il cen 12 Bulb ister only.

Define Retinal Disparity- The difference between our 2 retinas.

Give exact location and function of optic nerve

Some People suffering from night blindness:the can see better during the Day Light than during the night. Explain this physiologically?

15. IS THE LENS ANTERIOR OR POSTERIOR TO THE IRIS?    THIS IS NOT AND WILL NOT BE GRADED

#22 The three types of cones in the human eye are  a red, yellow, and green  b red, green, and blue  c red, blue, and cyan  d yellow, cyan, and magenta

The only cells of the retina that generateaction potentials are the cells.

3 questions 1.) Which of the following is NOT a property of the rod cells found in the retina? A.) A rod cell can detect a single photon of light. B.) They are concentrated mainly in the fovea centralis. C.) The rods detect motion and are responsible for peripheral vision . D.) There are about 125 million rods in the retina. 2.) Which of the following statements CORRECTLY describes the function of a component of a reflex arc? a.Sensory neurons gather information from effectors. b.Sensory receptors receive stimuli from interneurons. Question 3 is in the pic c.Motor neurons conduct impulses from interneurons to effectors. d.Effectors act as integration centres.

Kenrick is a 45-year-old Teaching Aide, who recently suffers with numbness in his foot and tingling in his hands. To his knowledge he has no medical conditions and never bothered to check. Six-months ago, he noticed that his vision is a bit blurred, sometimes he may have floating clouds in his vision that are not actually there which usually clear on its own. Kenrick is four feet seven inches and weighs 200 lbs, medium-frame built but an apple-shaped body-type.  He has a waist is 120 centimetres and a hip of 90 centimetres. He is not physically active and seldom cooks during the working-week. He enjoys red velvet chocolate-lemon frosted cake, ice-cream and fried foods. Every two days he binge-watches television shows and consume half a box of cereal, large order Chinese special and/or one 12-slice pizza. Last Tuesday Kenrick visited the doctor and was ordered to return in two days to complete and OGT and a glycated haemoglobin test (GHT). (i) Summarize the OGT and GHT process and…