Respiratory System Parts and their Functions Questions and Answers with complete solutions

Respiratory System Parts and their Functions Questions and Answers with complete solutions Alveoli - ANS- Gas exchange of oxygen and carbon dioxide takes place in the alveoli. Oxygen from the inhaled air diffuses through the walls of the. The oxygen is then carried by the blood to the body tissues. Bronchi - ANS- The main function of the bronchi and bronchioles is to carry air from the trachea into the lungs. Smooth muscle tissue in their walls helps to regulate airflow into the lungs. Bronchioles - ANS- The main function of the bronchi and bronchioles is to carry air from the trachea into the lungs. Smooth muscle tissue in their walls helps to regulate airflow into the lungs. Diaphragm - ANS- The diaphragm is the primary muscle used in the process of inspiration, or inhalation. It is a dome-shaped sheet of muscle that is inserted into the lower ribs. Lying at the base of the thorax (chest), it separates the abdominal cavity from the thoracic cavity. Epiglottis - ANS- The epiglottis is essential to digestion and it prevents food and liquid from going down the trachea. Larynx - ANS- The larynx houses the vocal cords. Nasal Cavity - ANS- The nasal cavity is a hollow space within the nose and skull that is lined with hairs and mucus membrane. The function of the nasal cavity is to warm, moisturize, and filter air entering the body before it reaches the lungs. Oral Cavity - ANS- The function of the oral cavity and its structures is to begin the process of digestion. The oral cavity receives food, chews and mixes it with saliva and then begins the swallowing process. The oral cavity plays an important role in speech. Pharynx - ANS- The pharynx, or throat, is the passageway leading from the mouth and nose to the oesophagus and larynx. The pharynx permits the passage of swallowed solids and liquids into the oesophagus, or gullet, and conducts air to and from the trachea, or windpipe, during respiration. Trachea - ANS- The trachea, or windpipe is a long. The trachea connects the larynx to the bronchi and allows air to pass through the neck and into the thorax.