Respiratory System – Homework Essay Sample

The respiratory system is responsible for supplying our bodies with oxygen. This is done through respirations. There are two different respirations the external and the internal. The external respiration is the exchange of air between the lungs.

This happens when oxygen is inhaled into the sacs of the lungs. Precisely at that time passes into tiny blood vessels surrounding the sacs, and at the same time carbon dioxide a gas passes from the blood vessels into the sacs for the lungs to exhale. While external respirations are taking place outside the body the internal respiration is taking place inside the body, what is happening here is the exchange of gas at the cell level within our body. Oxygen passes out of the blood vessels and into the tissues cells and carbon dioxide passed from the blood vessels into the lungs for exhale.
The anatomy of the respiratory system starts with the nose and passed through the nasal cavity. The nasal cavity is lined with mucous membrane and fine hairs called cilia to help filter out foreign bodies.

There is also the paranasal sinuses they are hollow, air containing spaces with also have mucous membrane. The sinuses also lighten the bones on the skull to produce sound.
After the air has passed thru the nasal cavity the air goes to the pharynx which is divided into three parts. The nasopharynx which contain the pharyngeal tonsils and the adenoids these are lymphatic tissues. The second division pharynx is the oropharynx which is located below the nasopharynx and contains two round mass of lymphatic tissues known as the palatine tonsils. The third division of the pharynx is the laryngopharynx which divides into the larynx and the esophagus. The job is the laryngopharynx is a passage way for the food from the mouth and air from the nose.

The larynx contains the vocal cords and the esophagus leads into the stomach where food is digested once traveling through the esophagus. The epiglottis is a flap of cartilage attached to the.

Essay – Gas Stations Industry In Society

Coming out of a much overpriced Shell gas station off of the 101 freeway past Bakersfield and in the middle of nowhere dwells the beast Drive up to Stanford.

The Drive up to Stanford, also known as DUS, wasn’t always this huge beast. No he used to be pleasant man; he would let people drive up and down the 101 freeway passing his shell station, even let them come to his shell station and buy gas and food. He was always nice like this up until Stanford University opened up in 1891 then DUS became this horrible beast killing and ripping the dead corpses of many college students and professors from Stanford who drive near his Shell station. DUS only goes after the college students and professors of Stanford because ever since Stanford opened there have been wild parties there.

Lot’s of students would get messed at these crazy parties and decide to swerve there cars all the way to his overpriced Shell station and they would crash into it. They would always trip out about the big, spinning yellow shell floating in mid-air. So now DUS would use his super spidey senses to pick out the Stanford people driving by so he could brutally mutilate them as they pass. DUS was as big as the Hulk, with two huge pointed horns on his head. He had a bigger 8 pack than the Situation and his arms were 10 feet around. He had one of the ugliest faces ever with no ears, 3 different sized eyes going across his face and his mouth foamed like a rabid dog when he got angry.

In the year 2009 the University noticed a drastic decrease in the number of not only their preppy students attending but also the number of their professors also decreased. The professors who traveled on the 101 freeway especially were not showing up to work. Nobody on campus knew of this horrific monster, DUS, because there were no witnesses or survivors to tell the story. Since there was nobody left traveling north on 101 to get to school DUS could no longer mass massacre these kids going to school..

Transcontinental Railroad

The year was 1863 in Dublin Ireland. Our country was falling apart, due to these harsh times food was scarce. There was much war happening many innocent lives lost due to those two main causes. There was word around the town that there was a faraway land that people could live free and happy lives, all you needed to do was put a little effort into the work that they provided you with. this work was a dangerous job but not many people cared they we would all die this treacherous wasteland soon anyway. So late one night I made the harsh and painful decision to go, move on to a new live in America.

The next morning all of our bags were packed myself, the wife and kids all packed into this small charter boast filled with many other families and off we sailed. We arrived after about one month, to see the great land of opportunity. Once we got off the boat we found an old saloon and asked if they had any rooms for rent upstairs. The kind man said that will be five cents a night. I told the man I have no money up front but I’m looking for a job if you could point me in the right direction, the gentleman sitting next to me at the bar told me that they are building a railroad and need all the help they can get. So the next day I found a guy to hook me up and I started the following morning the put me on as a track layer to start off with. The days to come were dreadful and horrible.

During my many years that passed by I came in contact with one of the most admired people working on this project, his name was Theodore Judah. He was the first chief engineer of this whole project across America. We talked day after day met each other at the near by saloon every night for a drink and became very good friends. Over time he thought I was ready for a promotion and gave me many options on what I could learn, such as a silversmith, explosives expert, engineer, etc. I decided that I wanted to be an explosives expert. I was trained for weeks upon weeks when I was finally.

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