What do you mean by blinking and peering in the eyelid, Biology

Assignment Help:

What do you mean by blinking and peering in the eyelid?

Blinking and Peering:

Blinking considers as to the opening and closing movements of the eyelid. The function of blinking is to keep the cornea moist and clean, help in drainage of tears, and to eliminate blurring of images during eye movements. With each blinking movement, of the lids the eyeball moves upwards and inward, similar to the position the eye takes during sleep. In a coinplete blink the superior and the inferior fornices are compressed by the preseptal fibres and the eyelids move towards eat$ other, with the upper lid moving a greater distance and exerting more force on the globe. Peering refers to the act of looking at some object with great interest, In the process of peering both upper and lower eyelid lower down by 2.5 mm. Along with this the lower eyelid also moves medially by 1 mm.


Related Discussions:- What do you mean by blinking and peering in the eyelid

What do you meant by diabetic ketoacidosis, Q. What do you meant by Diabeti...

Q. What do you meant by Diabetic Ketoacidosis? Diabetic Ketoacidosis (DKA) is one of the acute complications of diabetes mellitus. The name itself implies that there is acidosi

Which molecules has more direct effect, Which of the following molecules ha...

Which of the following molecules has more direct effect in learning and memory? A) norepinephrine B) epinephrine C) glutamate D) acetylcholine E) glycine Please leave justification

Phylum platyhelmenthiese, show heading wise characteristics of phylum platy...

show heading wise characteristics of phylum platyhelmenthiese

What is the usual reproduction cycle of a dna virus, Q What is the usual re...

Q What is the usual reproduction cycle of a DNA virus? A usual virus has proteins on its capsid that bind to the outer membrane of the host cell. In the place where the virus a

Find the genotypes and phenotypes of the f1, Determine the genotypes and ph...

Determine the genotypes and phenotypes of the F1 generation from a colour blind father and a mother who is homozygous for normal colour vision.

Define soy protein concentrates, Define Soy Protein Concentrates? The A...

Define Soy Protein Concentrates? The Association of American Feed Control Officials, Inc. (AAFCO) specifies soy protein concentrates as follows: "Soy Protein Concentrate is pre

What is dyslipidaemia, What is Dyslipidaemia ? The results of epidemiol...

What is Dyslipidaemia ? The results of epidemiological studies, as well as trials with angiographic or clinical endpoints, confirm the importance of various lipid fractions in

Express the term - amnion, Express the term - Amnion One of the extraem...

Express the term - Amnion One of the extraembryonic membranes found in terrestrial vertebrate. The amnion is filled with fluid and the developing embryo of reptiles, birds, and

Which structures are in plant and animal cells, Which of the structures are...

Which of the structures are (a) in plant and animal cells, (b) in plant cells but not in animal cells? a) Plant and animal cells having cytoplasm, cell membrane, mitochondria,

Why biologists use comparative method, Normal 0 false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

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