Saturday, February 28, 2009
Lymphatic System
Its three principal functions are: to collect and return interstitial fluid and thus help maintain fluid balance,to defend the body against disease by producing lymphocytes, and to absorb lipids from the intestine and transport them to the blood. Such a system has to have a high intravascular pressure if the blood is to be adequately transported. This results in fluid seepage from the capillaries and it is thought that the lymphatic system originally evolved to combat this problem. Lymphatic tissue is a type of connective tissue characterised by large numbers of lymphocytes. The stroma of lymphatic tissue is a network of reticular fibres. Connective tissue cells including fibroblasts and macrophages are present.
Thursday, February 26, 2009
Do you believe that violence in television programs leads to violence in our society?
No, it doesn't. Its just opens our eyes to it. People should be more aware about violence in the world. The main reason would be, because it can happen anywhere and anytime. I actually do think that some people never think about violence being done to them. They just go through areas, oblivious to the danger around them. It may not seem right to say this, but the world is a very violent and dangerous place. Not one person is safe from it. All we can do is try to be safe as possible. If anything leads to violence, it would have to be other people who act violent.
Wednesday, February 25, 2009
Funny Shows
I watch anything that makes me laugh. From sitcom shows like The Office and The George Lopez Show to all the reality shows on Vh1 except for Rock of Love and New York Goes to Hollywood, which is horrible. I don't even think it airs anymore. But yeah, if it makes me cry of laughter during one episode. I become a die hard fan of the series and will watch it to the end of the season. I don't watch the shows like Law & Order, The Closer, or CSI; because I find them utterly boring. I guess I rather be amused, than become more knowledgeable on law and murder cases. I always like to have a good laugh, so I watch these shows to get that. I don't know, now that I noticed what I watch on television; I feel rather limited on selection of tv channel and shows.
Tuesday, February 24, 2009
Heart Pumps
The sinoatrial node (SAN), located within the wall of the right atrium (RA), normally generates electrical impulses that are carried by special conducting tissue to the atrioventricular node (AVN). Upon reaching the AVN the electrical impulse is sent down conducting tissue that branches into pathways that supply the right and left ventricles. These paths are called the right bundle branch and left bundle branch. The left bundle branch further divides into two sub branches called fascicles. Electrical impulses generated in the SAN cause the right and left atria to contract first. Depolarization (heart muscle contraction caused by electrical stimulation) occurs nearly simultaneously in the right and left ventricles 1-2 tenths of a second after atrial depolarization. The entire sequence of depolarization, from beginning to end (for one heart beat), takes 2-3 tenths of a second. All heart cells, muscle and conducting tissue, are capable of generating electrical impulses that can trigger the heart to beat. Under normal circumstances all parts of the heart conducting system can conduct over 140-200 heart beats per minute. The SAN is known as the "heart's pacemaker" because electrical impulses are normally generated here. At rest the SAN usually produces 60-70 heart beats a minute. It is the SAN that increases its' rate due to stimuli such as exercise, stimulant drugs, or fever.
Should the SAN fail to produce impulses the AVN can take over. The resting rate of the AVN is slower, generating 40-60 heart beats a minute. The AVN and remaining parts of the conducting system are less capable of increasing heart rate due to stimuli previously mentioned than the SAN. Ventricular muscle cells may generate 20-30 heart beats a minute. Heart rates below 35-40 heart beats a minute for a prolonged period usually cause problems due to not enough blood flow to vital organs.
Should the SAN fail to produce impulses the AVN can take over. The resting rate of the AVN is slower, generating 40-60 heart beats a minute. The AVN and remaining parts of the conducting system are less capable of increasing heart rate due to stimuli previously mentioned than the SAN. Ventricular muscle cells may generate 20-30 heart beats a minute. Heart rates below 35-40 heart beats a minute for a prolonged period usually cause problems due to not enough blood flow to vital organs.
Monday, February 23, 2009
Papi
My hero is my father. Not because he saved my life or changed it; but because he has told me all his stories on his encounters and trials in life. Symbolically, each story answered a question I once asked him. In a way, he never told me what I should do in one of my conflicts. But, told me what his experience involving said conflict. And with this, I decided how to end each and every conflict I ever contended with. To understand, that there is no correct path to go through a puzzling maze. But, that you carve and shape your own path to reach your destination. This is so useful, that I wish to used this same concept on my own children. He let me be my own flawless statue; even though there are cracks and abnormalities present.
Sunday, February 22, 2009
Has college made you less sure about what is right and what is wrong?
No, college has not made less sure about what is right or wrong. The only effector that is sensible, would be life experience. Although college is a life experience, it is not all of it. Everything someone would have experienced up to that point, should have already defined his/her morals. It shouldn't all be figured during the college years. You learn what is right or wrong by watching the experiences of others or participating in your own. I already know what is right or wrong. The opinions or persuasiveness of faculty and students, have no effect on my rigid morals. Only I do.
Saturday, February 21, 2009
Kanye West
"Everything I'm not, made me everything I am" -Kanye West
I'm not sure if it is considered a quotation, but it is said during the song "Everything I Am" on Kanye's Graduation album. During the song he compares himself with other artists and actors, on their actions and accomplishments. And I believe, he does this to identify himself from everyone else. He speaks about what everyone else has done, and what the audience expects him to rap about. He chose not to speak on stereotypical rap topics, but on what he believes people need to hear. From the quote, I've filtered that he makes his own choices and does not duplicate the artists and actors choices in music, personal style, and life. And thats how I feel someone should identify his/herself. Of course, it is hard act on with material accessories, but that is all they are. Just accessories to your life, not you. So all things he is not or chose not do made him who he is, Kanye West
I'm not sure if it is considered a quotation, but it is said during the song "Everything I Am" on Kanye's Graduation album. During the song he compares himself with other artists and actors, on their actions and accomplishments. And I believe, he does this to identify himself from everyone else. He speaks about what everyone else has done, and what the audience expects him to rap about. He chose not to speak on stereotypical rap topics, but on what he believes people need to hear. From the quote, I've filtered that he makes his own choices and does not duplicate the artists and actors choices in music, personal style, and life. And thats how I feel someone should identify his/herself. Of course, it is hard act on with material accessories, but that is all they are. Just accessories to your life, not you. So all things he is not or chose not do made him who he is, Kanye West
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