Friday, September 22, 2006

Heart's Structure

Today I Will Share Wid U Information Abt Heart Structure.

Your Heart Has A Size OF Ur Fist.In the human body, the heart is normally situated slightly to the left of the middle of the thorax, underneath the sternum (breastbone). The heart is usually felt to be on the left side because the left heart (left ventricle) is stronger (it pumps to all body parts). The left lung is smaller than the right lung because the heart occupies more of the left hemithorax. The heart is enclosed by a sac known as the pericardium and is surrounded by the lungs. The pericardium is a double membrane structure containing a serous fluid to reduce friction during heart contractions. The mediastinum, a subdivision of the thoracic cavity, is the name of the heart cavity.

The apex is the blunt point situated in an inferior (pointing down and left) direction. A stethoscope can be placed directly over the apex so that the beats can be counted. This physical location is between the sixth and seventh rib, just to the left of the sternum. In normal adults, the mass of the heart is 250-350 g (8-11 oz), but extremely diseased hearts can be up to 1000 g (2 lb) in mass due to hypertrophy. It consists of four chambers, the two upper atria (singular: atrium ) and the two lower ventricles.

The function of the right side of the heart (see right heart) is to collect deoxygenated blood, in the right atrium, from the body and pump it, via the right ventricle, into the lungs (pulmonary circulation) so that carbon dioxide can be dropped off and oxygen picked up (gas exchange). This happens through a passive process called diffusion. The left side (see left heart) collects oxygenated blood from the lungs into the left atrium. From the left atrium the blood moves to the left ventricle which pumps it out to the body. On both sides, the lower ventricles are thicker and stronger than the upper atria. The muscle wall surrounding the left ventricle is thicker than the wall surrounding the right ventricle due to the higher force needed to pump the blood through the systemic circulation.

Have any1 read Digital Fortress by Dan Brown?

If yes, then have u guys solve the code behind the book yet?


This no. code have u guys solved it?

If no, then here is the way u do it. There r 128 chapters in the book. So those numbers r the chapter numbers.

128 means open chapter 128 and take the first letter on the page. do this for all the numbers.

U will get these alphabets " WECGEWHYAAIOTYNU "

Then U Apply The Caesar Square Box To The Encrypted Text 4 x 4





read the text from up to down... is still a bit messy but it reads. WE ARE WATCHING YOU!!

Thts it the code is solved!


Joke Tym

Santa goes into a bar in London for a couple of drinks, as he is sitting alone and drinking, he notices a sexy womansitting in a corner and staring at him. He gulps down a couple of neats and gathering courage he goes upto her andsays, Excuse me....I m Santa from India. "Can i sit here and buy u a drink?"

The woman agrees and soon both of them r drinking away like good old frnds. Then after evrything is throughSanta and tht lady wlk out of the bar. Again gathering courage and slightly drunk Santa says, Eschcuse me, can wehave sex plz?

The lady says, "I Dont mind, but u see i m on my menstrual cycle."

"No Problem" says Santa "U proceed on ur menstrual cycle, i will follow u in my Honda Accord!!!"


Bye guys, Comments r welcomed (but no one does)

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