Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Mechanoreceptors - Receptors
Mechanoreceptors involve those receptors involved in perception of touch, pressure, tension, hearing, vibration, gravity, muscle tension etc. These would show to us at first sight as rather heterogeneous assemblage of sensations, but the basic mechanism included in the perception of all these is similar, they are all sensitive to contact with objects and are mechanically deformed temporarily by all the above stimuli. In the simplest case, they involve free nerve endings on the body surface.
Figure: Gravitation and equilibrium receptors. A. A statocyh of a mollusc.
But frequently mechanoreceptors are more complex. A mechanoreceptor of wide occurrence in the non-chordate metazoans is the statocyst. It is mainly an organ concerned with perception of gravitational force and is a balancing organ found in approximately all phyla, including coelenterates. It consists necessarily of a particle of calcium carbonate called statolith. The statolith is carried in a vesicle lined by a layer of sense cells that have hair-like processes. The statolith rests on the sense cells. The vesicle is of course filled along with a fluid. The animal can appreciate the direction of gravity or tilt, from the sense cells on which the statolith comes to rest.
Q. How is it explained that a person with the spinal cord sectioned at the cervical level is still able to perform the patellar reflex? The arch reflex depends only on the inte
Q. What is biological control? The Biological control is a natural method to control the size of microorganism, animal or plant populations. The Biological control is based on
What is the functional unity of the kidneys? The functional (filtering) unity of the kidneys is the nephron. A nephron is made of afferent arteriole, efferent arteriole, glomer
Five Kingdom Classifications Biology, as you know, is the study of life, living things, and their relationship to one another and to their environment. This branch of Science
Explain the Economic and Social Burden ? Cardio-vascular diseases pose tremendous economic strain on the population and the countries throughout the world. However there is a d
Analytic Characters - Nature and Structure of Community As you know a community has its own characteristics. Which are not shown by its individual component species. These cha
Fl u o r osi s Continual ingestion of small amount of fluoride through feed or water leads to fluorosis in animals. The toxic effects are based on amount of fluorine inges
Q. What are the Valvular heart diseases? Valvular heart disease is a common clinical problem. While rheumatic mitral valve disease seen more often in the underprivileged segmen
Are viruses cellular organisms?
Define about the Sucrose and Trehalose? Sucrose, also called saccharose, is ordinary table sugar refined from sugar cane or sugar beets. Trehalose has two a-D-glucose molecu
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd