Fetal Development - 1,355 words
Fetal development starts with the process of fertilization. It starts when the female ovulates producing an egg. This egg then travels into the fallopian tube where it waits to be fertilized. Once sperm enter the body they must travel up the uterus until they make their way up to the egg. Once at the egg the sperm try to get in. They sperm wiggle their tails until they make it in. Once it makes it in the egg will not any other sperm in. The sperm that made it then drops its tail. After about twenty hours inside the egg the sperm finds the nucleus of the egg and fuses with it. Now the egg has all the genetic material that it needs to make a new human being. It nows begins to move down into th ...
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Metabolic Muscular And Nervous Systems - 1,672 words
... ws the cross-bridge to detach and re-attach to another active site on an actin molecule. This contraction cycle is repeated as long as free calcium is available to bind the troponin and ATP is available to provide the energy. The signal to stop contraction is the absence of the nerve impulse at the neuromuscular junction. When this occurs, an energy requiring calcium pump located within the sarcoplasmic reticulum begins to move the calcium back into the sarcoplasmic reticulum. This removal of calcium from troponin causes tropomyosin to move back to cover the binding sites on the actin molecule and cross-bridge interaction ceases. It is possible for skeletal muscle to exert force without ...
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Arthritis - 533 words
Osteoarthritis is a disease that causes the cartilage in your joints to break down. Cartilage is a smooth substance that protects the ends of your bones and helps your joints move. Osteoarthritis becomes more common as people get older. To diagnose this disease, your doctor will ask about your and your families health history. X-rays and an exam may also be needed. Osteoarthritis can affect any joint. Weight-bearing joints, such as the hip and knee, are often affected in both men and women. Hand joints, however, are affected more in women than in men. Some of the more common symptoms of this disease include: Joint pain and stiffness. Long periods of rest or using a joint too long or too har ...
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Anatomy - 2,864 words
Anatomy - is the study of the structure of the body parts & their Physiology - concerns with the function of the bodys structural Gross Anatomy - is the study of the large body structures visible to the naked eye. It can be approached in different ways. Regional Anatomy - is the study of all the structures in one particular Systematic Anatomy - is when anatomy is studied system by system. Surface Anatomy - is the study of the internal structures as they relate Microscopic Anatomy - is the study of structures too small to be seen They are usually divided into operations of specific organ systems. The Principle of Complementarity of structure & Function - Anatomy & Physiology are taught togeth ...
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Anatomy - 2,889 words
... ssue Connective tissues have three main elements: ground substance, fibers, & cells. Ground substances make up the extracellular matrix. (Note: that the term matrix indicates the ground substance.) Ground Substance - is an amorphous (unstructured) material that fills the space between the cells & contains the fibers. It is composed of instertitial fluid, cell adhesion proteins, & proteoglycans. Cell adhesion proteins, a group that includes fibronectin & lamina, sever mainly as a connective tissue glue that allows connective tissue cells to attach themselves to matrix elements. The proteoglycans consists of a protein core to which glycosaminoglycans (GAGs) are attracted. The strand-like G ...
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Alternative Medicine - 1,269 words
Alternative medicine, also known as alternative therapies, lie outside the realm of conventional medicine. An alternative therapy is any intervention that: is not reimbursable by most health insurance providers in the United States, is not well supported by scientific tests establishing safety and effectiveness, and is not taught by most medical schools in the United States. They are also called adjunctive, unconventional, or unorthodox therapies. There are many general areas of alternative medicine. This paper will outline just five of those general areas, and give examples of each. One area of alternative therapy is alternative systems of medical practice. One example of this kind of alter ...
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Osteoprosis - 1,287 words
The topic I have chosen is Osteoporosis and how it is related to a deficiency of calcium. Throughout my human nutrition course the importance for proper nutrition and adequate dietary supplements has been constantly emphasized. Nutrition is the science that deals with food and how the body utilizes it. All living things need food to live. Food supplies energy, which people need to perform certain actions and bodily functions. Food also provides substances that the body needs to build and repair its tissues and to regulate its organs and organ systems. (Sizer&Whitney) Food provides certain chemical substances needed in order for a person to maintain good health. These chemical substances are ...
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Me - 585 words
When is it not a baby? In my opinion, partial birth abortion is not ethical, it is wrong. Lets first look at the process of aborting a child while in the mother. Depending on the phase or the trimester the baby is in, will determine how the child is to be killed. If it is more than five months the Childs brain will be sucked out and the mom will have to have a C-section; if the mother is less than four months there are many ways to abort a child. One for example would be just sucking the baby out of the vagina or murder the child inside and allowing the mother to have a menstrual period cycle to pass the child out so the doctor can dispose of the remains. Now, look at partial birth abortion ...
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Hoop Dreams - 1,076 words
The book Hoop Dreams Paul Robert Walker shows how life can work against you in every way imagined no matter how hard you work. It shows how all good can turn to bad in the blink of an eye and how all your dreams can be thrown away after everything youve worked towards completing. The story is based on two men Arthur Agee and William Gates whos lives are basically recorded from their freshman year in high school to their senior year of playing basketball. Their story means something to anyone with a dream to play basketball at a higher level. The purpose of this book was for Walker to show all the things that can turn something good for somebody bad and for somebody who has something bad to w ...
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Shar - 577 words
For my project that I'm doing for biology , I'm doing a dissection. I'm going to be performing my project with Trevor Johnson , Tyler McCaskill, and Tom Shudt .The dissection that we decided to do was the dissection of a male and female shark. We are doing a dissection on a shark because we want to learn about the shark anatomy and the way the sharks organs work to keep all the water out and still eat fish while they are swimming around in the ocean.We also want to know how the sharks skin is so resistant to cancer . We also wanted to know a little bit about the shark , so maybe if we decide to go into the field of Marine Biology we would have a little more knowledge on what the jobs in that ...
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Cloning - 1,283 words
When one thinks of cloning, what comes to mind? Movies such as Multiplicity can give the layperson a much-distorted image of cloning. In this particular movie, actor Michael Keaton plays a father who cannot handle his crazily busy lifestyle. In an effort to be the perfect father, husband and employee, he has himself cloned easily at a nearby medical center. The three clones each have their own personality: one is sarcastic and bitter, one is sweet and sensitive and one is a half-wit but all are identical. This cloning process is false. At this time, scientists have cloned animals including Rhesus monkeys, mice and probably the biggest breakthrough: sheep. Cloning could mean hope for so many ...
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Speech Paper - 452 words
In society today a child grows up worrying about his or her looks, grades and even popularity. With maturation comes matured fears and knowledge about things going on around the globe. As one gets older, one tends to become more concerned about health related issues. Men and women might start to eat better meals and become conscious of the different diseases that exist. Men begin to annually get their prostate examined while women begin to get mammograms. However, some people are not so health conscious. Years of smoking, drinking and bad health habits usually catch up to a person. While an individual might be free of well communicated about cancers such as prostate and breast, they may not ...
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Cloning - 1,231 words
Since the late seventies scientists have been cloning mammals using cells taken from embryos. In July 1996, medical history was made when a sheep named Dolly was cloned. The only thing that set Dolly the sheep apart from the other clones was that she was cloned from an adult sheep cell. Before Dolly was cloned, scientists thought adult cell cloning was impossible. A clone is defined as a group of genetically identical cells. The goals and purposes for cloning range from making copies of those that have deceased to better engineering the offspring in humans and animals. Cloning could also offer a means of curing diseases. Cloning has many benefits that could be used as an aid to the human rac ...
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Proteins - 979 words
Proteins are the macromolecules of life. Discovered in 1838, proteins are recognized as a large number of superior organic compounds that make up living organisms and are essential to their functioning. The term protein comes from the Greek word proteies or primary. Proteins have many different properties and function in a variety of ways. They can function as a building material, in teeth, bones and muscles, and they can serve as enzymes, hormones, and neurotransmitters. Its functions are the most diverse of any family. Whether found in humans, animals, plants or in single-celled bacteria, proteins are made of units of 20 different amino acids. Proteins consist of macromolecules called poly ...
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Tiger Sharks - 632 words
Description of Tiger Sharks Information about Tiger sharks is rare in books so most of this paper will be about sharks in general. The Tiger Shark's Latin name is Galeocerdo cuvier. Sharks are a member of the fish family. There are over 350 species of sharks. Sharks can be as big as 49 feet long (whale shark) and as short as 6 inches (cigar shark). Sharks' bodies do not have bones, but have cartilage instead. They have pointed heads with five gills behind it. Sharks have very sharp teeth that are replaced whenever they lose teeth. Sharks' skin can be reddish brown, bronze, metallic blue or nearly black, although most of them are gray. Some have spots, bands and marbling. Their skin is leathe ...
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Genetic Engineering - 1,435 words
At the Roslin Institute in Edinburgh, Scotland, Dr. Keith Campbell, director of embryology at PPL therapeutics in Roslin, and his colleague Dr. Ian Wilmut worked together on a project to clone a sheep, Dolly, from adult cells. On February 22, 1997, they finally succeeded. Dolly was the only lamb born from 277 fusions of oocytes with udder cells. Wilmut says there were so many failures because it is difficult to ensure that the empty oocytes and the donor cell are at the same stage of the cell division cycle. To clone Dolly, basically scientists took an unfertilized egg cell, removed the nucleus, replaced it with cells taken from the organism to be cloned, put it into an empty egg cell which ...
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The Secret Life Of Great White Sharks - 1,110 words
Great White Sharks are greatly misinterpreted as vicious man-eaters because of the media, movies, and peoples imaginations, but they are actually large fish who mistake people for seals and other marine life. What is a great white shark? The great white, among the least understood of Earths creatures, is an apex predator, meaning that it is at the top of the food chain with no natural predators. This means great whites have their pick of food when it comes to selecting their prey (Klimley 15). Carcharodon carcharias, better know as the great white shark, have existed as a group for over 350 million years (Long). Its name means ragged-toothed (Gorman 10). The largest white shark on record was ...
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Genetic Engineering: The Final Frontier - 1,017 words
In February of 1997 Dolly, the first successful mammalian clone, was born in Edinburgh, Scotland. After the extensive news coverage of this momentous event, the study of genetic engineering and recombinant DNA was thrown into the public spotlight. From that day until this peoples, governments and organizations throughout the world have heatedly discussed the issues surrounding genetic modification and engineering. Over the past several years there has been loud public outcry against the use of such experimental procedures because of the possibility of deadly outcomes. Even though not much is known about genetic engineering, in its many forms, this significant discovery has the boundless pote ...
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Abnormal Cell Growth Leading To Cancer - 1,599 words
Cancer is the second leading cause of death in the United States. Half of all men and one-third of all women in the U.S. will develop cancer during their lifetimes. Although it is common knowledge that cancer is generally inherited, this paper will further explore the causes and what happens on a cellular level when cancer develops in the human body. Basics of signal transduction Cell communication, or signal transduction, is simply the means by which cells in the body respond to signals coming from outside those cells. The purpose of this chemical communication is to coordinate functions inside the cell, between cells or between organs in the body, allowing us the means to respond to our ex ...
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Analysis Of The Benefits Of Cloning - 895 words
All over the world, people are searching for ways to improve themselves and their lives. Cloning can help the lives of millions of people in the United States. It offers a variety of options that can help almost everyone. People will be very happy with the cloning technology. Cloning is good for our world because it can get rid of infertility, it can give people the appearance they want, and it can cure health problems and diseases. Because of infertility, many couples go through physically and emotionally painful procedures for a small chance of having children. Infertility happens when a woman's ovaries have failed, her eggs are not easily fertilized, or because the man's sperm is not conc ...
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