What is optic nerve, Biology

Assignment Help:

What is optic nerve

The optic nerve contains more than one million axons that initiate in the ganglion cell layer of the retina. This structure originatcs at the back of the eye just above and medial to the posteiior pole. It contiilues on from the retinal nerve fibre layer. The optic nerve consists of visual fibres and pupillonlotus Iibres (for pupillary reflex and oculm movements). Fibres frbm peripheral retina lie deeper in retina but occupy the most supelficial pm-t of optic nerve while those from central retina are superficial in retina but centrally placed in the optic nerve. 


Related Discussions:- What is optic nerve

Define about the extra-ocular muscles, Describe about the extra-ocular musc...

Describe about the extra-ocular muscles The extra-ocular muscles are mainly involved in the maintenance of postural tonicity and performance of quick contractions. The prima

Define feeding options for premature and lbw babies, Define Feeding Options...

Define Feeding Options for Premature and LBW Babies? Different workers have tried different method and since all methods are successful, it is dependent on the individual infan

What are compound eyes, What are compound eyes? Arthropods have compoun...

What are compound eyes? Arthropods have compound eyes made of many visual units called ommatidia. Every ommatidium transmits visual information by the optic nerve to the brain,

What do you mean by alpha diversity, Q. What do you mean by Alpha diversity...

Q. What do you mean by Alpha diversity? Alpha (a) richness refers to the number of species found in small, homogenous area. Alpha diversity refers to the diversity in a partic

Reproductive cycles, Normal 0 false false false EN-IN ...

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

What are the advantages of intra oral periapical radiographs, Advantages of...

Advantages of Intra Oral Periapical Radiographs a) It is a useful high yield modality for ruling out local bone or dental disease b)  It is of value in identifying critical

What are two specific actions in this, The major ecological imbalance on Ea...

The major ecological imbalance on Earth is between the human species and the rest of Earth's biota. What are two specific actions we could do to achieve a balance (for example, rec

Explain water - an essential but overlooked nutrient, Explain Water - An Es...

Explain Water - An Essential but Overlooked Nutrient? You may already know that the total body water (TBW) constitutes 50-60% of the body weight. A 70 kg 'standard male' contai

Define foods effect on drug transport, Define Foods Effect on Drug Transpor...

Define Foods Effect on Drug Transport? Many drugs are transported in blood bound lo plasma proteins. Severe malnutrition or diseases affecting the synthesis of plasma proteins

Explain water as a lubricant, Explain Water as a lubricant? All fluids...

Explain Water as a lubricant? All fluids have lubricating as they can make it easier for the solid materials to slip over one another. Water-based fluids act as lubricants in

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