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. What do you mean by Pericardium?
Pericardium is the sac covering the heart. Pericardium consists of two layers-the visceral pericardium (epicardium) and the parietal pericardium. The visceral pericardium directly lines the heart surface. The cavity between the two layers of the pericardium contains approximately 15 to 35 ml. of serous fluid-the pericardial fluid. The visceral pericardium is a thin membrane-a monolayer of mesothelial cells, while the parietal pericardial thickness may be up to 2.5 to 3.0 mm. Perietal pericardium is attached loosely by ligaments to sternum and vertebral bodies and firmly to central tendon of the diaphragm.
The phrenic nerves lie over the parietal pericardium and supply most of it. Vagal fibres from oesophageal plexus also supply pericardium. The internal mammary arteries and small branches from aorta supply the pericardium. The parietal pericardial lymphatics drain to the anterior and posterior mediastinal nodes while the visceral pericardial lymphatics drain to tracheal and bronchial mediastinal nodes. The pericardium buttress the thinner chambers of the heart, the atria and right ventricle and maintains the normal diastolic pressures and dimensions in these chambers. The pericardium can prevent acute cavitary dilatation. The pericardial fluid reduces the friction during heart movement. The ligamentous attachment of pericardium to the neighbouring structures prevent cardiac displacement. The normal intrapericardial pressure can vary from -5 to +5 mm. of Hg. though mostly it is negative. The pericardial pressure varies during respiration along with pleural pressure.
Salmonellosis is the most reported zoonotic disease in European countries. Salmonellosis (Salmonella gastroenteritis) results from the ingestion of foods that contain significant n
comparitive table to explain the differences between the animals in chordate classes
A.N.S. (Autonimic Nervous System) Name given by Langley . Controled by Hypothelamus. Partially independent system. Controls involuntary actions as heart beat, breathing,
Which of the following statements about how B and T cells recognize antigen are true? a. B cells only recognize antigen presented by class I or class II MHC molecules. b. Both cell
An organism having the genotype AaBbCcDdEe is self-fertilized. What are the proportions of gametes that are expected to carry only dominant alleles?
Q. What is the respective importance of water, carbon and nitrogen for living beings? Water is the major solvent of living beings and it is necessary practically for all bioche
How to culture mould plant s Use either sterile dishes with potato slices or gelatin as those ready for the experiments on bacteria. Transfer mould from every of the sources in
Q. Use of Protective Eyewear as personal protective equipment? Protective lenses must be worn by dental personnel: 1. when performing procedures that can cause spatter or ae
Photosynthesis is the most significant producer of molecular oxygen (O2) on our planet. From which molecule do oxygen atoms liberated by photosynthesis come? From which other molec
Ichnology : This is the study of foot prints. Ichnology is a type of branch of geology which deals with traces of organismal behavior like as burrows or footprints. It is commonly
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd