Homeless people can see cars and people walking. Homeless people can hear cars going past and people chattering Homeless people can feel cold and lonely Homeless people can smell delicous food Homeless people can taste nothing at all.
Homeless people can see the shoes if people rushing past, the dark night when the streets are asleep. The cold stone floor and the sleevs of their coats as they cling on to them, an endless struggle to keep warm with what little they have. They can hear the curses of teenages, the gossip of women, dogs barking, cars passing. The wind howling and the rain pelting the floor. They can feel the sharp, icy wind of the night, lonliness and wanting to belong, to belong to something more than a busy street. They feel scared, depressed, humiliated, like everything, everyone and all you ever knew has abandoned you, forgotten you or betrayed you. They feel like their entire perspective of life has turned upside down. Worst of all, they can feel the eyes, the eyes of people watching them, judging them, children, teens, adults, women, men. The eyes, judging their appearence, trying to piece together a mental landscape of their situation. They can smell the fumes of buses, the stench of their unwashed belongings, dog feceies, rubbish bins, and most painfully, the fast food resterunt a few metets away. They can tase the vile taste of their unwashed teeth and bad breath. The after tase of the coffee that was kindly offered to them last night.
In the respiratory system, the primary function is to obtain oxygen and eliminate carbon dioxide. The oxygen taken in are needed by the cells for proper body functioning and the carbon dioxide produced by the body cell is eliminated.
The respiratory system is made up of respiratory airways through which air passes. It leads in and out of the lungs.
The flow of air in the body begins from the nose. We breath in through the nose and the air moves to the pharynx, a passage that leads to the lungs. Food also passes through the pharynx. Then the air passes from the pharynx to the trachea. The bronchi connects to the trachea from the bottom of the trachea and it branches into secondary and tertiary bronchi. Then the air is taken in by the alveoli (tiny sacs) into the body where it is used.