BIOS 255- Week 6 - The Respiratory System- Anatomy Test Questions with Correct Solutions Latest Update 2025 (Rated A+)

BIOS 255- Week 6 - The Respiratory System- Anatomy Test Questions with Correct Solutions Latest Update 2025 (Rated A+) What structure is used by both the respiratory and digestive systems? Esophagus Paranasal sinuses Larynx Oropharynx Nasopharynx - Answers Oropharynx The oropharynx is a part of the throat located between the oral cavity and the nasopharynx. It serves as a common pathway for both the respiratory and digestive systems. During respiration, air passes through the oropharynx on its way to the larynx and then to the lower respiratory tract. During swallowing, food and liquids pass through the oropharynx on their way to the esophagus, which is part of the digestive system. The nasopharynx, paranasal sinuses, and larynx are involved in the respiratory system, while the esophagus is a key part of the digestive system. Which is not a function of the respiratory system? Air passageway Sound reception Odor detection Gas exchange - Answers Sound reception Sound reception is a component of the nervous system as specialized structures in the head are responsible for perceiving and transducing vibrating waves into sound. Sound production, however, is a responsibility of the respiratory system. All other options are functions of the respiratory system. Which components are part of the upper respiratory division? Select all that apply. Alveoli Nasal cavity Lungs Trachea Pharynx - Answers Nasal cavity Pharynx The upper respiratory tract consists of respiratory organs in the head and neck such as the nose, nasal cavity, pharynx, and larynx. The lower respiratory tract consists of the respiratory organs in the chest such as the trachea, lungs, bronchi, bronchioles, and alveoli. Which term encompasses the entire process of exchanging gases between an organism and its environment? Circulation Ventilation Oxygenation Respiration - Answers Respiration Respiration is the term that encompasses the entire process of exchanging gases between an organism and its environment. It includes both the processes of ventilation (the mechanical movement of air in and out of the lungs) and the actual exchange of gases between the lungs and the bloodstream (external respiration) and between the bloodstream and body tissues (internal respiration). Pulmonary ventilation (breathing) can also be described as the movement of air into and out of the lungs the process of expiration only the process of gas exchange in the lungs only the process of inspiration only. - Answers the movement of air into and out of the lungs Pulmonary ventilation, commonly referred to as breathing, is the process of moving air into and out of the lungs. It includes both inspiration (the process of inhaling or taking air into the lungs) and expiration (the process of exhaling or expelling air from the lungs). What gas is generated as a waste product of cellular metabolism during internal respiration? Carbon dioxide Nitrogen Hydrogen Oxygen - Answers Carbon dioxide How does the respiratory system contribute to communication? It produces hormones that enhance communication skills. It contains vocal cords that vibrate to produce sound. It regulates body temperature for effective communication. It filters air for speech clarity. - Answers It contains vocal cords that vibrate to produce sound. The flow of air past the vocal cords in the respiratory system allows for the production of sounds and vocalization, which is essential for verbal communication. What is a primary function of the respiratory system? Controlling immune response Regulating body temperature Facilitating gas exchange Producing hormones for digestion - Answers Facilitating gas exchange A primary function of the respiratory system is to facilitate the exchange of gases between the body and the environment. This process involves inhaling oxygen from the air and exhaling carbon dioxide, allowing for the supply of oxygen to body tissues and the removal of carbon dioxide, a waste product of cellular metabolism. In which type of respiration does oxygen in the bloodstream enter the body's cells for energy production? Tissue respiration External respiration Internal respiration Cellular respiration - Answers Cellular respiration Cellular respiration- oxygen from the blood stream enters the cell and helps in production of energy/ ATP by breakdown of glucose through cellular respiration. In which part of the respiratory system is the sense of smell, or olfaction, primarily located? Bronchi Alveoli Pharynx Nasal cavity Larynx - Answers Nasal cavity The nasal cavity contains specialized olfactory receptors that allow us to detect and identify various odors. These receptors send signals to the brain, which interprets and processes the sense of smell. What is the exchange of oxygen and carbon dioxide between the air in the alveoli and blood in the lungs called? Internal respiration External respiration Cellular respiration Ventilation - Answers External respiration External respiration refers to the exchange of gases between the alveoli (air sacs in the lungs) and the bloodstream. Oxygen from the inhaled air diffuses into the blood, while carbon dioxide from the blood diffuses into the lungs to be exhaled.