Fill in the blanks: The two most common visual pigments (photosensitive pigments) of insects are ______ and metarhodopsin. These pigments are contained in the regions of the ommatidium called the _____, which consists of "brush-like" fringes of microvilli that run the full length of the inside surface of each _____. which are the sensory neurons of the ommatidium. The _____ of the ommatidium is composed of the corneal lens and the crystalline cone.
Fill in the blanks:
The two most common visual pigments (photosensitive pigments) of insects are ______
and metarhodopsin. These pigments are contained in the regions of the ommatidium called the _____, which consists of "brush-like" fringes of microvilli that run the full length of the inside surface of each _____. which are the sensory neurons of the ommatidium. The _____ of the ommatidium is composed of the corneal lens and the crystalline cone.
A pair of large, black and kidney shaped compound eyes are located on the lateral side of head in most of the arthropods. The outer surface of each eye is some what convex and divided into 2000 small and hexagonal areas called facets. Each facet is associated with the series of small ectodermal structures, constituting a separate visual unit of photoreception called an ommatidium. Thud each eye of cockroach,for example is a compound structure of about 2000 ommatidia.
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