The pupil is centrally located in the iris, or the colored part of the eye. This is the muscle responsible for constricting and dilating the pupil to control the amount of light which enters the eye. The pupil constricts when an environment is well lighted, or when focusing on objects close to the eye. It dilates when we are in an environment that is poorly lit, or to focus on objects in the distance. Behind these structures lie the lens, the retina, the macula, and finally the optic disc in the very posterior portion of the eye. The lens is the refracting medium within the eye, keeping objects in continual focus on the retina. The retina is the receptive layer of the eye where the light waves are localized and transmitted into nerve impulses where they form the optic disc. The macula is located on the retina and is responsible for our central field of vision (Jarvis, 2012, p. 282). Additional structures outside of the ball of the eye, but still essential to maintaining its full functionality include the optic nerve, optic tract, and occipital lobe of the brain. These all run from the back of the eye through to the most posterior (back) part of the brain (Montgomery, 2014). .
More than half of our neocortex, or the "wormy" lobe part of the brain, is dedicated to processing visual information sent by our eyes. A huge misconception is that we see images with our eyes. The eye only processes the light that an object reflects or emits (Jarvis, 2012, p. 279, 283). Therefore, the eye cannot detect objects when light is totally absent. When the light is reflected it passes the cornea, through the pupil, then the lens. At this point, the light pattern being reflected turns both backwards and upside-down. The light continues to travel, passing through the liquid vitreous humor; which is the clear gel that constitutes approximately 80% of the eyes volume, and landing on the retina (Montgomery, 2014).
The things I enjoyed most about the lab were cutting the pig, looking at the anatomy of the fetal pig, and I enjoyed comparing the pig to a human being. ... We also cut out the eye ball. The eye ball was small and rounded, it was also very soggy. ... The anatomy of the fetal pig was very similar to ours. ... I got to cut open the piggy, looking at the anatomy of the pig, and comparing the pig to a human. ...
Not only was he interested in painting and sculpturing, which is what he is probably primarily known for, but also showed great interest in architecture, mechanics, sculpturing, and the study of anatomy. He had a quick eye which helped him to make important scientific discoveries. Leonardo Da Vinci's portfolio includes several drawings which reveal his intense study of human and animal anatomy and plant life. ...
The details through- out the body of the sculpture were impressive to the eye. Being able to notice the accurate anatomy, and veins of the body made me feel as though a human had been frozen in the moment. ... There he attempted to represent realistically the details of the human anatomy. ... The pose is not standard, and the outer form appears as soft as human skin, but this sculpture still presents toughness of a savage Indian. ...
Focusing on the realities, paintings became less symbolic and more a "portrayal of concrete realities as they met the eye." ... Paintings and sculptors were suddenly focusing on humans and their anatomy. Sculptors now presented human beings which enabled people to view from all angles, thus "bringing it securely into the material world." ... These humanist values are focused more on how humans were becoming increasingly concerned with their present world and how they could bring religion into it rather than try to escape their own world using religion. ... Each value began to express how ...
People believe that their strong knowledge of anatomy and physiology is due to their practices of embalming of the dead, which was a ritual for the Egyptians since prehistoric times. Their knowledge of the workings of the human body encompassed new areas of medicine ranging from a basic understanding of anatomy to the introduction of some surgical skills. ... This papyri is chiefly an internal medicine guide with refrences to diseases of the eye, skin, and some surgical diseases. ... Other great figures in the medical advancements of the Ancient Greeks include Aristotle, who lived after...
They all propose that human life is more important than animal life. Humans have a god-given authority over other animals, and humans eat animals and use them for work (Cothran 51). ... Animal Experiments are used for education to learn about anatomy and physiology of the animal body (McCoy 28). ... Substances such as soap, oven cleaner, eye shadow, furniture polish, and hairspray are tested wastefully because doing the experiments on animals does not help prevent or treat human illness or injury (PETA). ... Students are using mathematical and computer models of animal anatomy to learn ph...
It has convinced my critical eye of its greatness, and it will convince yours too. ... During this time Michelangelo also studied human corpses to learn human anatomy. ... This is evidence of Michelangelo's study of human anatomy. ... Michelangelo's version is much more pleasing to the eye. ... In my eye Michelangelo's Pieta is the most beautiful piece of sculpture ever made. ...
Victor Frankenstein intervenes with fate and passes the boundary of human limits on the creation of life. ... After involving himself deeply in science, Victor began to inquire about the creation of life and the anatomy of the human body. ... Victor was mesmerized by creating life into his creation's pieced together body right up to the moment the creature's eye opened. ...
Substances such as eye shadow and soap are tested on rabbits, rats, guinea pigs, dogs, and other animals, despite the fact that the test results don't help prevent or treat human illness or injury. ... Animals have feelings just like humans. ... In high schools around the world hundreds and thousands of animals are killed and dissected in science and biology classes simply to learn their anatomy. ... If the school system can afford to buy hundreds of animal carcasses, they should be able to provided more efficient and more humane ways to teach children the anatomy of animals. ... Anot...
