Illustrate about human eyes, Biology

Assignment Help:

Eyes

We have a pair of eyes. They are held in socket of the skull by four rectus muscles and two oblique muscles. These muscles control the movements of the eyes. The wall of the eye ball is composed of an elastic layer. In front this layer is transparent, called the cornea; the rest is opaque, called the sclera. In front, the sclera is covered by a very thin layer called conjunctiva. The next layer lining the inner surface of the sclera is uveal tract. Uveal tract has three parts, the part in front is a circular diaphragm, called iris and aperture of this diaphragm is called pupil. The inner most layer of the eye is nervous layer which is called retina. It is composed of visual nerve endings for reception and transformation of light stimuli.

1939_biology.png

 


Related Discussions:- Illustrate about human eyes

Excretion in amoeba, EXCRETIO N IN AMOEBA - NH 3  is excreted out t...

EXCRETIO N IN AMOEBA - NH 3  is excreted out through plasmalemma. Osmoregulation takes place by contractile vacoule, generally one, towards posterior end, contractile in

Nuclease, Nuclease  is an enzyme which degrades the nucleic acids. A nuclea...

Nuclease  is an enzyme which degrades the nucleic acids. A nuclease can be DNA-specific (a DNase), RNA-specific (RNase) or non-specific. It might act only on single stranded nuclei

Adaptation and learning function of consciousness, Q. Adaptation and learni...

Q. Adaptation and learning function of Consciousness? Adaptation and learning function: Adaptation to novel experiences requires more conscious involvement, for successful lear

Reproduction, write about asexual reproduction in mucor

write about asexual reproduction in mucor

What is endocrine system explain, What is Endocrine System explain ? Th...

What is Endocrine System explain ? The endocrine system consists of glands, organs that secrete hormones. Endocrine glands are tissues that produce secretions within the body,

Biological species concept, Is the biological species concept subjective or...

Is the biological species concept subjective or objective? How about the phylogenetic species concept or is it subjective or objective?

Making individual rock collections, Making individual rock collections ...

Making individual rock collections Peoples should be encouraged to make their own collection of rocks. Small pasteboard or cigar boxes will serve to be the collections. The spe

Plant physiology, one idea on how plant physiology can apply in food engine...

one idea on how plant physiology can apply in food engineering

What proportion of children with down syndrome, What proportion of children...

What proportion of children with Down syndrome do you expect when women with down syndrome have children with men who have 46 chromosomes Justify your answer

Explain about the gel bands detection techniques, Explain about the Gel ban...

Explain about the Gel bands detection techniques? Gel bands, resulting from a gel electrophoretic separation, may be detected by staining, radioactive counting or immunoblottin

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