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Essay On Sense Organ Eye

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The Senses

...The senses: Taste, touch, sight, hearing and smell. Everything we know is based on our perception of our senses and our knowledge of the world. Everything we know of perceptually in our brain’s memory bank is built upon the senses. Our senses pick up information and send it to our brain to be processed into something tangible. We use our senses to prove what we are told and we unconsciously depend upon our senses to function. Someone tells us a train is coming and it is near; we immediately want proof of it. The first instinct we have is to look for it and if we don’t see it we listen for it. If we cannot see or hear it then more than likely we are probably not going to believe that the train is near and dismiss the person as being misinformed. Our senses help us to make ‘sound” judgments as to whether we believe in something, if we like or dislike something, and if we trust or fear something. Without our senses we could not function. Businesses use sensory analysis, a technique to test or analyze our senses for their marketing. A restaurant uses sensory analysis to find out if their products are feasible to market by analyzing the effect a food product has upon their clients. The International Organization for Standardization has set procedures for sensory analysis “to conduct sensory evaluations under constant, controlled conditions with a minimum of distractions, to reduce the effect that psychological factors and physical conditions can have on human......

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...THE SENSES Hilgard morgan and Sartain explain that there are more than eight senses that we use to explore and learn about the world.Each of these senses has a specific sense organ within which are receptor cells or receiving mechanisms that are sensitive to certain stimuli in the environment. The Eye Is the organ of vision, is sometimes compared to a camera lens because it works roughly the same way as the latter which focuses images of objects at various distances o the film as it moves toward or away from the place of the film. The lens of the eye focuses light images on a sensitive surface.This surface in the eye is the retina,which is composed of rods and cones. Rods which are cylindrical and number about 100 million,do not distinguish colors but are more sensitive to light than are the cones. Cones which are conical in shape and more than six million in number,allow us to see the different wave lengths of light as different hues or colors. Hilgard presents the process of seeing,light enters the eye through the cornea,a tough transparent membrane.The amount of light entering the eye is regulated by the diameter of the pupil,a small hole in front of the eye formed by the iris.The iris consists of a ring of muscles that can contract or expand,thereby controlling pupil size. The Ear Is the sense organ of hearing which is sensitive to sound waves,the mechanical vibrations in the air. There are three parts of the ear:The outer......

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...Can you really trust your senses and the interpretation of sensory data to give you an accurate view of the world? Describe and discuss the accuracy and the weaknesses of the human senses as they pertain to think in general and to your own thinking in particular. What perception means and how is relate to our senses? According to Joe Stratton (1999) on his book Critical Thinking for college students stated that “perception is the process of selection, organization, and interpretation of the sense-data into mental representation that can be use by the brain and the nerve system to provide content for thought” (p. 17). We can understand as Perception the process by which we receive and interpret information coming from the environment or ourselves. This information is received through the five senses: Sight, hearing, taste, touch and smell. Sensory perception is not sufficient to identify the outside world, it is necessary also the intervention of other processes such as attention, memory, and imagination. In other words, perception is how we understand and interpret the world. We perceive the world in certain ways depending on our beliefs is like a filter between us and the reality, the memories and experiences that we have stored in our subconscious mind and our capacity of imagination is responsible for how we can perceive the reality. The perception varies from person to person; different people perceive different things in the same situation. “This sensing-thinking......

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Human Organ Traffic

...for survival, the law prohibiting the widespread of trading human organs in numerous nations is being a controversial issue. The information from “Topics for today” (Smith and Mare, 2004) as well as reference of other resources presenting in this paper does express two different perceptions. While most of ethical and political organisations oppose to transaction human organs, I still belive that it is necessary to legalize that business with the purpose of making the best endeavor in regaining the subsistence of millions patients. Revoking the law which does forbid the patient has the right to buy flesh and people has authority to sell their organs would be beneficial besides merely saving a person’s life. First of all, both dealers are beneficiaries from the business transaction. Ross Taylor, president of the British Transplantation Society revealed a tremendous view of the people who prepare to martyr themselves. Their desperate circumstances are motivations for them to sell their body organs for justifiable even lofty intention as paying off of debts, college tuitions or even saving their families. While their donations are considered as a gift for patients’ life, they are also rescued from the impoverished situation. Simultaneously, legalization of human organs trading facilitates for the available flesh to reach the expectation of people who are waiting for transplantation. The adequate resource of human organs synonyms with millions patients are saving. By......

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...Abraham Castillo Persuasive Speech Topic: Organ Donation Thesis Statement: Becoming an Organ Donor isn’t only an important decision for yourself, but also to the life you are capable of saving and having the power to save. I. Introduction- A. Attention Material/ Credibility Material: The Holidays are coming up, and some of us are anxious to see what the holidays may bring for us. How about if this gift we were patiently waiting wasn’t one you can find at your local retail store, but instead this was a gift you were on a waiting list for and it was life threatening. Shutong Hao (Tong Tong) received the heart of donor Matthew Mingin, a four-year-old described by his mother as “a polite and generous boy with a heart of gold.” With her new heart, Tong Tong was transformed into an energetic, happy child. Matthew’s gift helped save other lives as well. “One woman made the decision to become a donor when she heard our story,” says Shutong’smother. “We are so grateful.” B. Tie to Audience- Someone on the 10,000 donor list maybe someone you know either a relative or family member C. Thesis and Preview- Today I would like to talk to you about the need of organs in our country, how you may become an organ donor, finally how you’re family and the organ recipient’s benefit from your donation. [Transition: Organ donors] II. Body- It may be your next door neighbor or even a close relative that may need a donation. 1. In 1902, the first kidney......

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...------------------------------------------------- Top of Form What term describes the customs and traditions of a group of people? Bottom of Form Value: 1 ------------------------------------------------- Top of Form Who established the first permanent European settlement on Hispaniola? Bottom of Form Value: 1 ------------------------------------------------- Top of Form What Renaissance artist and inventor was one of the original Renaissance Men? Bottom of Form Value: 1 ------------------------------------------------- Top of Form Who was known for his Renaissance political treatise The Prince? Bottom of Form Value: 1 ------------------------------------------------- Top of Form What is the term for the Renaissance focus on positive human qualities? Bottom of Form Value: 1 ------------------------------------------------- Top of Form What was the name of the Council that started the Catholic Reformation (counter-reformation)? Bottom of Form Value: 1 ------------------------------------------------- Top of Form What group is called the society of Jesus? Bottom of Form...

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Commercialization of Organs

...Commercialization of Organ Transplants Naomia Curtis BUS309 Prof. Kenneth A. Pino The idea of sale of organs normally pops the question of whether or not this should be allowed. Well, legally the sale of organs in exchange for money or any other mode of payment is not accepted. However, there are several businesses and medical practitioners that want to change this. One of the notable associations that fight for this idea to go through is the AMA (American Medical Association). To justify their actions, they mention that the ethical issues behind the sale of organs favor the idea. This motivates them in fighting for laws restricting such sale of organs to be legal. The sale of organs is normally favored by two arguments. The first argument is the notion that the owner of the organ has every right to do as he/she wishes with their body parts. Secondly, there is a big shortage in the number of organs ready for transplant that has even led to radical measures being put in place to ensure that more organs for donations are present. Whether the organs would be sold, there is justification due to the high shortage being experienced. Arguments that are against the sale of organs are normally thrown back and forth. Nevertheless there are two clear arguments that reflect on the above arguments that have been mentioned. The first argument is the fact that selling organs eventually leads to commoditization of the bodies. The second argument that is not in favor of the sale of......

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Does Granting Animals Human Rights Make Sense?

...Does Granting Animals Human Rights Make Sense? University Does Granting Animals Human Rights Make Sense? Throughout history, there has been any number of people belonging to various groups that for one reason or another were persecuted, oppressed, or otherwise denied equality with the rest of society. Over time, these groups have either formed their own activism or received sponsorship from another group with the goal of achieving equality in the eyes of society, if not in the eyes of the law. Workers, women, minorities, and homosexuals are examples of such groups where the pursuit of what we have come to call human rights has both made history and changed society. This document will explore the question: “does granting animals human rights make sense?” While it is understood that human beings, the species Homo sapiens sapiens, are members of the animal kingdom, for the sake of this discussion use of the term “animals” will refer to those that are non-human. Much of the rhetoric emanating from the animal rights debate is highly emotionally charged. By approaching the issue from the perspective of a reasonable person, it is possible to strike a balance by ensuring the humane treatment of animals where human culture and purposes intersect with the animal kingdom. Often, the animal rights debate is referred to as though there were only two sides to the argument. One side would grant rights to animals that are equivalent to the rights humans strive to afford one......

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The Indian Organ

...constitutive of individual identity and destabilizing the donor identity as it interrupts its biological processes. More than forcing different cultural standards on the Prakesh family’s consumption habits, Ginny has seen to it that they receive only nourishment that has been so mitigated by technology that it no longer resembles food in any “natural” sense at all. Rather than rice, fish, or potatoes, their kitchen is stocked with “multi-colored pellets” and a specialized “cooking device.” The kitchen itself, as a space highly productive of identities marked by difference, has been “dismantled.” Concerning this food-stuff Detsi-Diamanti writes, “Being constantly monitored and fattened like the proverbial lamb before the slaughter, the characters begin to lead antiseptic lives, eating multicolored pills instead of food, avoiding human contact for fear of contamination” (italics mine, 115), of which one should note the animal comparison. In this fashion, Ginny does not merely invest in her donor population, but rather erases their own domestic identity, and replaces it with the sterilized version suitable to her commodification of their bodies and organs, as she has ordered that the guard “cleans and swabs the entire area.” Similarly, in factory farm environments, animals are removed from any “natural” feed cycles and sources that they enjoyed in the wild or as domesticated animals on smaller family farms. Factory farm feed is usually nutritionally thin, being comprised......

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Sense Perception

...knowing: http://microbemagic.ucc.ie/explore_body/five_senses.html http://idahoptv.org/dialogue4kids/season10/senses/facts.cfm http://www.sciencemuseum.org.uk/WhoAmI/FindOutMore/Yourbrain/Whatareyoursenses.aspx We have 5 senses which are sight, smell, sound, taste and touch. They are very important in our lives because we would use one of them every moment of every day. They also work together to let our brains know what are going on around us, in other words, they are protector by warning us of any danger. However, any quick change to any of the five senses can cause the feeling of dizziness or unsteadiness. You might have experienced this while riding in a car or turning quickly. Sight: Eyes are the organ of vision. The function of our eyes are the same as cameras, as we can see images from the world and send information to our brain. Then, the brain processes the information, therefore we can see movement, color, depth and shape. Sound: Ears are the organs of hearing. The function of our ears is collecting sounds, and hearing helps us to learn and communicate to others. We can hear a huge range of sounds, from a deep bass to a high-pitched whistle and those sounds will change into electrical signals to the brain to process. Therefore, the brain uses the sounds from left and right ear to determine distance and direction of sounds. Taste: Tongue is the organ of tasting. The function of our tongues tastes four different flavors, which are salty, sweet, sour and......

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The Sale of Human Organs

...Shiner-Swanson Final Research Paper The Sale of Human Organs In the US recently the issue of human organ trafficking has become a bigger and bigger problem. When people hear that human organs are being bought and sold on the black market, they think that kind of thing only happens in third world countries, but it is quickly becoming one of America's biggest issues. People spend years of their lives on the transplant list waiting for a life saving operation, and they think that if they just buy whatever they need, it will solve all their problems. What most people don’t understand is how corrupt and dangerous organ trafficking is. The sale of human organs either facilitated through a doctor or on the black market, will soon be a huge problem in the near future. People on one hand are becoming so desperate for life saving transplants, and on the other hand people are looking to make a profit from buying or stealing organs and selling them on the black market. Organ trafficking is already an issue in third world countries, and will become a problem in the United States before we know it. The history of human organ transplant dates back further than most people would think. The curiosity of transplant dates back before modern medicine, in 9th century BC where individuals sewed animal parts together. In 4th century BC, Chinese texts describe Tsin Yue-Jen, a surgeon who switches the hearts of two people. This is the first documentation of a human transplant. In 1878,......

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Human Sense Organs

...Tiffany Herring B. LaFond PSYC 1000 Human Sense Organs As human beings we have 5 different human sense organs. These sense organs are sight, smell, touch, taste, and hearing. Our 5 sense organs help each of us and how we perceive reality and the world around us. Without our sense organs we would have a much harder time understanding the world we live in. Each of our different senses have specialized organs that are set up to receive specific stimuli, these are linked to the nervous system and from the nervous system then linked to the brain. The first sense organ is sight. The eye is the organ of sight. The basic structure of the eye consists of a transparent lens that focuses light on the retina. The retina is covered with two types of light-sensitive cells called cones and rods. The cones are sensitive to light whereas the rods are not they have a greater sensitivity to light. The eye is connected to the brain by the optic nerve. Our brain takes the two different images from our eyes and turns them into a single 3-D image. One of the most amazing things I learned about the eye was that our eye actually sees things upside down but when our brain processes the images it sees it turns them right side up and that is the image our brain shows us. Smell is our second sense organ. The nose is the organ we use to smell. The nose is lined with mucous membranes that have smell receptors that are connected to the olfactory nerve. Smells are made up of a variety of......

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Sensory Organs

...Eye – sight The only vision organ in our body is eye. The eye is connected to the brain through the optic nerve and the point of this connection is called the "blind spot" because it is highly sensitive to light. Furthermore experiments have shown that the back of the brain maps the visual input from the eyes. An eye has a dynamic structure consisting of a transparent lens that focuses light on the retina. The retina is covered with two basic types of light-sensitive cells-rods and cones. The light is focused by the cone cells which are sensitive to color and they are located in the part of the retina. The rod cells are not sensitive to color, but it have got a greater sensitivity to light than the cone cells. The brain combines the input of our two eyes into a single three-dimensional image. Additionally even though the image on the retina is upside-down because of the focusing action of the lens, the brain converts and provides the right-side-up perception. The iris actually is a pigmented muscle that controls the size of the pupil, which dilates to allow more light into the eye or contracts to allow less light into the eye. The iris and pupil are covered by the cornea. The range of perception of the eye is phenomenal. In the dark, the eye perception would be a substance produced by the rod cells which increases the sensitivity of the eye so that it is possible to detect very dim light. Strong light, the iris contracts reducing the size of the lens that admits light......

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...EXPERIMENTATION ON SIMPLE REACTION TIME (SENSES: REACTION TIME) Date conducted July 04, 2015 Introduction How do we know the reaction time of its senses? Which of the senses is more sensitive and very fast in receiving information? How do we read laboratory primers and organized data into summaries and graphs? We will find out from this experiment the sources of reaction time. We shall identify also the early programs of research on RT. We will compare which of the sense is slow or fast in receiving information. OBJECTIVES: -This experiment aims to acquaint us in reading laboratory primers and organized data into summaries and graphs. -This experiment aims to identify which of the senses is more sensitive and very fast in receiving information and which of the senses that is very slow in receiving information. -It sought to know the reaction time of its senses as well as the average reaction time. Background and Related Literature: According to studies such as those done by Brebner and Welford published in 1980, mean auditory reaction times are .14-.16 seconds and mean visual reactions times are .18-.2 seconds. The time it takes for the signal to reach the brain was also found by these studies; it takes auditory stimulus .08-.1 seconds to reach the brain while visual stimulus take .2-.4 seconds to reach the brain. Based on this information as well as that from the experiment, a new hypothesis and prediction were being proposed such that if it does takes......

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Organ Transplantation

...Organ transplantation in the Health Care Industry 1 Organ Transplantation in the Health Care Industry De Andre’ Chaission Texas Southern University Authors Note De Andre’ S Chaission , Department of Health Sciences, Health Administration Major Correspondece concerning this article should be addressed to De Andre Chaission, Health Administration, Texas Southern University, Houston, Tx 77004 Contact : Chaission@yahoo.com Organ Transplantation in the Health Care Industry 3 Organ transplantation is a medical act which involves the surgical operating by transferring or removing of an organ from one person to the other, or placing the organ of a donor into the body of a recipient for the replacement of the recipients damaged or failed organ which resulted from impairment of normal physiological function affecting part or all of an organism or an act that causes someone to receive physical damage. Lately, there is an emerging innovation whereby organs are created to form and increase in size by a process of inorganic accretion, from the patient’s cell. This field of medicine is known as the regenerative medicine. In addition to this, there are basically various types of regenerative medical transplanting which are known as the auto graft, allograft organic transplantation, iso-graft, xeno-graft and xeno- transplantation...

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The Eye is The Most Complicated Sense Organ Essay

1281 Words6 Pages

The eye; the most complicated sense organ

General – Introduction to the subject

A. Adaptation of sense organs to our biological evolution

Sense organs, as the other organs, are the result of our continuous biological evolution and are built is such way so they can meet our needs.

B. The electromagnetic spectrum and what we are able to see

The electromagnetic spectrum contains a large width of energy areas but we are able to see only a small part of this spectrum, the visible light spectrum.

Figure 1

As you can see the visible area is between the Ultra-violet and Infra-red areas.
With a simple experiment we can show than light from sun can be separated into this light spectrum. Using a prism and a piece…show more content…

Receptor cells in humans are specialized to respond to many different aspects of the environment, such as light, sound, temperature, chemicals (in taste and smell) and pressure.
The human eye – the sense organ of vision – contains the photo receptors which not only detects light but creates detailed representation of our environment.
The eye is a highly complex structure and contains many receptor cells. The receptor cells, called rods and cones, are located in the retina.
Human eye constitutes of the eyeball and the auxiliary cells.
The eyeball is formed by 3 sequential tunics; the external, the middle, and the internal tunic.

Figure 4

The external tunic constitutes of the sclera and the cornea and its function is to provide mechanical support and protection while participating in the process of focusing. The sclera is the white part of the eye, very renitent, and protects the internal of the eyeball.
The cornea is located in the front of the eyeball, its clear so light can enter the internal of the eyeball.

The middle tunic includes the choroid, the iris, and the lens. The choroid contains an extended network of blood vessels which transfer oxygen and nutrients to the internal tunic.

Figure 5

The function of the middle tunic is to regulate the amount of light which enters the internal of the eyeball and also to regulate the shape of the eye lens for

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