ATI TEAS 6 Respiratory System Complete Test 2023.

ATI TEAS 6 Respiratory System Complete Test ratory system - ANSWER -primary function is to facilitate gas exchange b/t the body and external environment, and to provide oxygen to the body by working w/ the cardiovascular system -consists of nasal cavity, pharynx, epiglottis, larynx, trachea, lungs, bronchioles, bronchi, diaphragm, and alveolus -system of organs that oxygenate blood and release carbon dioxide respiratory system and cardiovascular system work together - ANSWER -oxygen diffuses into the body through the lungs and is disseminated throughout the body by the circulatory system to be used for cellular metabolism -carbon dioxide, the waste product of cellular metabolism, is returned to the lungs by the circulatory system, and the lungs release it to the environment pharynx - ANSWER -air passes through the pharynx -dividing point b/t the trachea and esophagus, where the throat senses the presence of food and triggers swallowing epiglottis - ANSWER -flap of cartilage that covers the entrance to the pharynx during swallowing, preventing liquids and food from entering the respiratory tract and trachea larynx - ANSWER -traveling past the epiglottis, air then passes through the larynx -ALSO called the voice box! trachea - ANSWER -the tube that carries air from the mouth and nasal cavities to the lungs -the trachea splits into 2 bronchi -ALSO known as the windpipe! bronchi - ANSWER -main passageways to the left and right lung -originating where the trachea splits, passages that carry air to the left and right lungs -as the bronchi move deeper into the lungs, the bronchi split into smaller tubes known as bronchioles -plural: bronchus bronchioles - ANSWER -terminate at the alveoli -smaller passages formed from branching of the bronchi that carry air to the alveoli alveoli - ANSWER -small sacs only one cell thick -where gas exchange occurs -the walls of the alveoli are only one cell thick to minimize distance and maximize diffusion rate -plural: alveolus where does air enter from? - ANSWER air first enters the body through the mouth and nasal cavities and passes through the pharynx pathway of breathing - ANSWER **Pharynx --> Larynx --> Trachea --> Bronchi --> Alveoli **REMEMBER "Please Leave The Breathing Alone" respiratory tract cells - ANSWER line the respiratory tract and secrete mucus and other liquids to both keep the lungs moist and trap inhaled pathogens surfactant - ANSWER detergent found bathing in the alveoli, which reduces surface tension to prevent lung collapse cilia - ANSWER -some respiratory cells are covered w/ this -the cilia beat rhythmically to keep mucus and other particles flowing across the interior epithelial surface which lung is smaller? - ANSWER the left lung is slightly smaller than the right b/c the heart is located on the left side of the body right lung - ANSWER -has 3 segments, or lobes -each lobe is covered by a tough, protective double membrane, each part of which is called a pleura, which pleural fluid b/t the two pleurae