Aromatherapy Body Massage! Trivia Facts Quiz

The statement is true because the nostrils, or anterior nares, are indeed separated by a septum. The septum is a wall of cartilage and bone that divides the nasal cavity into two separate passages. This division helps to regulate airflow and allows for better filtration and warming of the air before it reaches the lungs.

The respiratory system consists of air passages and lungs through which the air passes on its way to the lungs. The pharynx is the common passage for both air and food, and it leads to the trachea. The trachea, also known as the windpipe, is a tube that carries air from the pharynx to the bronchi. The bronchi are the two main branches that lead to the lungs. The larynx, also known as the voice box, is located between the pharynx and the trachea and plays a role in producing sound. Enzymes, on the other hand, are not part of the respiratory system and do not play a role in the passage of air to the lungs.

The statement is true because the lungs are indeed separated from each other by the mediastinum. The mediastinum is a central compartment in the chest that contains vital structures such as the heart, great blood vessels, oesophagus, and trachea. This separation allows each lung to function independently and prevents interference between the two lungs.

Respiration is the process of inhaling and exhaling air, allowing the body to take in oxygen and release carbon dioxide. Inspiration refers to the act of inhaling air into the lungs, while expiration is the act of exhaling air out of the lungs. Respiratory pause refers to a temporary cessation of breathing between inspiration and expiration. Elasticity, on the other hand, is not a division of respiration but a characteristic of the lungs that allows them to expand and contract during the breathing process. Therefore, the correct divisions of respiration are inspiration, expiration, and respiratory pause.

The statement is false because the amount of CO2 in the arterial blood does control the depth and rate of respiration. When CO2 levels in the blood increase, it triggers the respiratory centers in the brain to increase the rate and depth of breathing in order to remove the excess CO2 and restore proper levels of oxygen. This is known as the respiratory drive and is an important mechanism in maintaining homeostasis in the body.

The epiglottis is a flap of tissue located at the base of the tongue that prevents food from entering the larynx, or the voice box. When we swallow, the epiglottis closes over the larynx, directing the food down the esophagus and into the stomach. This prevents food from entering the respiratory system and potentially causing choking or aspiration pneumonia. Therefore, the statement that the epiglottis closes to prevent food entering the larynx is true.