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!
Q. How is heart contraction triggered?
Heart contraction is independent from neuronal stimulus although it can be modulated by the autonomous nervous system in the heart there are pacemaker cells that trigger by themselves the action potentials that begin the muscle contraction. These cells are concentrated at two special points of the heart that are 1) the sinoatrial node (SA node) located in the superior portion of the right atrium and 2) the atrioventricular node (AV node) located near the interatrial septum.
The action potentials generated by depolarization of the SA node cells propagate cell to cell throughout the atria producing the atrial contraction, The atrial depolarization also propagates to the AV node that then transmits the electric impulse to the ventricles through specialized conduction bundles of the interventricular septum the bundle of His and then to the Purkinje fibers of the ventricle walls causing ventricular contraction. The atrial contraction precedes the ventricular contraction for blood to fill the ventricles before the ventricular contraction.
The repolarization of the SA node makes the ventricles relax and then the atria relax too.
How much Fluids should be taken for management of obesity? Liberal amounts of water and zero/low calorie fluids may be included in the diet. It may be helpful to have a glass o
Describe three ways that RNA differs from DNA. RNA is single stranded; DNA is double stranded all of the codons from the deletion point to the end of the transcript would be s
Explain Coarctation of Aorta ? Coarctation of aorta may be isolated or it may have other co-existing cardiac and vascular lesions. In critically ill neonates with coarctation,
Q. Genetic resources of biodiversity? Genetic diversity or the gene pools are important for promoting and ensuring high agricultural yield. Genetic diversity provides crops wit
Define the Foam Mat Drying Method? This process is a development of the vacuum puffing but, instead of employing a vacuum to foam the material, it is initially foamed by suitab
Q. Moniliasis is one of the most common opportunistic diseases in AIDS. What is the etiological agent of moniliasis and what is the other name of the disease? Why is monilia also c
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer? Epidermis and nervous system have the simi
Explain the Composition of Nutrient Agar and Nutrient Broth? The composition and procedure for preparation of some commonly used media, which we will use in the laboratory for
Which of the following is an active transport process? A. Net flux of sodium across the plasma membrane via voltage-gated sodium channels. B. Net flux of glucose across the
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