Explain the working of human visual system, Biology

Assignment Help:

Q. Which is the part of the human visual system where the receptors that sense light, i.e., the photoreceptor cells, are located? How do those cells work?

The photoreceptor cells form a lamina, the retina that covers the internal posterior region of the eyeball. The photosensitive cells of the retina are divided into two types: the rod cells and the cone cells. These cells have pigments that sense specific light wave ranges that are the frequencies and trigger action potentials conducted by the optical nerves to the visual area of the brain.


Related Discussions:- Explain the working of human visual system

How are the male gametophytes formed in angiosperms, Q. How are the male ga...

Q. How are the male gametes and the male gametophytes formed in angiosperms? In the anthers of every stamen there are pollen sacs. Inside the pollen sacs there are microspore m

What is the properties of aqueous solutions, Which of the following is TRUE...

Which of the following is TRUE about the properties of aqueous solutions? Select one: a. A pH change from 5.0 to 6.0 reflects an increase in the hydroxide ion concentration (

Why bacteria called extremophiles, Bacteria called extremophiles are able t...

Bacteria called extremophiles are able to grow in hot springs such as Old Faithful at Yellowstone National Park in Wyoming. Do you think that the DNA of extremophiles would have a

All part., Wat type of animal is tick and weevil?

Wat type of animal is tick and weevil?

Long-term treatment of maple syrup urine disease, Q. Long-term treatment of...

Q. Long-term treatment of maple syrup urine disease? Special feeds containing energy and proteins without the branched chain amino acids can be given to the infants. In some in

Lymhatic system, composition formation and circulation of lymph

composition formation and circulation of lymph

Describe the effects of acid precipitation on ecosystems, What are the effe...

What are the effects of acid precipitation on ecosystems?

Define colonization of the gut - probiotic effect, Define colonization of t...

Define colonization of the gut - probiotic effect? It is not clear how probiotics influence the flora and produce a beneficial effect. However, colonization of the gut appears

Non symbiotic nitrogen fixers - nutrient cycles, Non Symbiotic Nitrogen Fix...

Non Symbiotic Nitrogen Fixers - Nutrient Cycles There are certain groups of free living bacteria both aerobic and anaerobic and blue green algae that fix nitrogen. Aerobic nit

Calculate the efficiency of photosynthesis, Figure  shows the flow of energ...

Figure  shows the flow of energy through the trees in a forest ecosystem.The numbers represent inputs and outputs of energy in kilojoules per m 2   per year. (a)  (i) On Figure,

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd