How do humans connect with the world? What is the bridge humans build that leads them to understand their connection with their worldly surroundings? This connection can be found while looking at the five senses humans possess. These senses are sight, smell, hearing, taste, and touch. Some people are not fortunate enough to have all five senses working properly. Those who are blind either through injury, eye disease or from birth cannot use their sense of sight. Those who have ear damage or are born without the sense of hearing are known as deaf. A majority of the world’s population, however, has their five senses intact and use them on a daily basis consciously and unconsciously at all times, even while at rest. Sight, the sense of vision, allows us to see what is going on in the world around us. It has a complex 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 cone cells are sensitive to color and are located in the part of the retina called the fovea, where the light is focused by the lens. The rod cells are not sensitive to color, but have greater sensitivity to light than the cone cells. Smell is the sense through the nose where mucus membranes have receptors, which send it to the olfactory gland. From there the smell is in a sense translated for your interpretation of the smell. Hearing is the sense through the ears. The inner part of the ear sends vibrations to the middle ear where nerve fibers that react to the vibrations and transmit impulses to the brain via the auditory nerve. The brain combines the input of our two ears to determine the direction and distance of sounds. Taste is sense that is felt through the tongue that allows us to taste what goes in our mouths. On our tongue there are receptors for taste. These receptors are called taste buds. They detect the four basic tastes of sweet, bitter, salty, an