Respiratory System Air is drawn into the lungs Air pressure in the chest cavity decreases Lungs expand The diaphragm contracts and flattens Circulatory System Blood is pumped by the right atrium poo passes through the pulmonary artery Blood enters the heart through the vena cava polo passes through pulmonary veins Blood enters the right ventricle 12

Q: Which of the following control breathing? select all that apply

A: The exchange of gases occurs through diffusion. Gases diffuse from an area of high partial pressure…

Q: Chemical and physical properties of gases are important factors in the evolution and physiology of…

A: A complicated system that consists of the heart and lungs, blood arteries, and blood is the…

Q: Which of the following is the inferior boundary of the nasopharynx? hyoid bone internal nares uvula…

A: The pharynx is a muscular tube that links the mouth, nose, and larynx to the larynx and oesophagus.…

Q: The cardiovascular and respiratory systems are made up of interconnected organs that include which…

A: Heart is the chief beating structure present in the organism which helps in delivering pure blood to…

Q: When you hold your breath, which of the following changes in blood gas changes is the one that leads…

A: The urge to breathe is under the control of the respiratory center of the brain which is located in…

Q: Air is inhaled when the______ and the rib muscles contract, making the chest cavity______ . In…

A: The method of transferring air into and out of the lungs to allow gas exchange with the internal…

Q: What is the purpose of the nasal passage? The nasal passage warms or cools air to body temperature…

A: Ans- 1) The nasal passage warms or cools air to body temperature and filters air. This is the…

Q: Ventilatory threshold is the point at which     an individual's ventilation becomes coupled to…

A: The ventilatory threshold is a term used in kinesiology to describe the moment during exercise when…

Q: If a respiratory pigment such as hemoglobin or hemocyanin is not present in blood the blood would…

A: Blood transports oxygen from the lungs to the heart and then from the heart to various regions of…

Q: Gas exchange is more difficult for aquatic animals with gills than for terrestrial animals with…

A: The question is asking us to identify the reasons why gas exchange is more difficult for aquatic…

Q: After the right ventricle, how does air make its way to the lungs to be exhaled? 1st picture is…

A: Circulatory system of the body works in order to transport oxygen to the periphery & bring back…

Q: What is the structure that protects the lungs? heart pleural membrane chest cavity diapragm

A: Introduction  The lungs are a pair of air-filled, spongy organs on either side of the chest…

Q: Fish and some reptiles use this form of "pumping" to ventilate their respiratory surfaces: O Buckle…

A: Introduction  Respiration is the essential life process performed by all the living organisms.…

Q: When holding your breath, you must eventually exhale because:     High levels of carbon dioxide are…

A: Breathing is a crucial physiological interaction that guarantees the body gets a ceaseless supply of…

Q: Which of the following paths reflects the correct flow of air into the lungs?a. nasal cavity →…

A: The respiratory system is involved in supplying clean oxygen to the body and simultaneously, it…

Q: During the process of inhaling the diaphragm contracts. As a result, air enters the human lungs…

A: Respiration is the mechanism by which all living organisms generate the energy they require to…

Q: Which of the following would NOT occur as blood passes through the lung capillaries? O PCO2 of the…

A: Cl- would move from plasma into the red blood cell.

Q: The larynx consisting of vocal folds ('chords') and other parts is the source of vocal sounds. Which…

A: Here, the correct answer is option E) Partially closed folds produce 'back pressure' below the…

Q: In a negative feedback control of respiration, a high level of carbon dioxide in the blood…

A: Homeostasis refers to a state of a good balance of physical and psychological factors that helps to…

Q: Chilean miners trapped in a poorly ventilated mine shaft likely experienced and elevated heart rate.…

A: Breathing is the process of inhalation and exhalation of gases. We inhale oxygen and exhale carbon…

Q: Air moves through a series of cavities, tubes, and openings Also known as inhalation Also known as…

A: The relationship between gas pressure and volume aids in the understanding of breathing mechanics.…

Q: Which of the following provides the best evidence that the circulatory system and the respiratory…

A: The respiratory system is a biological system consisting of specific organs and structures used for…

Q: Which is NOT a function of the nasal cavity? allows gas exchange provides a passage for air moistens…

A: Nasal cavity is one of the cephalic part of the respiratory tract. With the help of anterior…

Q: Type II alveolar cells: Engulf foreign particles in the alveoli Decreases the diffusion distance of…

A: The lungs are two spongy organs that are packed with air on either side of the chest (thorax). The…

Q: cause flight is metabolically demanding, birds have very efficient systems that help to meet these…

A: The ability to fly is a remarkable capability, but it comes with significant metabolic demands for…

Q: The pulmonary trunk carries: low-oxygen blood from the lungs to the heart oxygenated blood from the…

A: The left and right lungs contain many air sacs or alveoli that are associated with many blood…

Q: The ventilatory threshold is a non-invasive measure of     maximal voluntary ventilation…

A: The ventilatory threshold is a concept in exercise physiology. It refers to the point during…

Q: Parasympathethic stimulation of the lungs causes O bronchioles to dilate O bronchioles to constrict…

A: The part of the nervous system that controls bodily functions which are not controlled voluntarily…

Q: List the approximate partial pressures for Oxygen and Carbon Dioxide:   Location O2 CO2…

A: Atmosphere: O2 is 20.9% (total composition) and 158.8mmHg CO2 is 0.004 % (total composition) and 0.3…

Q: Patients with cystic fibrosis (CF) have a defect in which of the following parts of the respiratory…

A: Question - Patients with cystic fibrosis (CF) have a defect in which of the following parts of the…

Q: The PO2 in the alveolar space is [ Choose than the PO2 in the capillaries entering the alveoli.…

A: The given image represent the blood vascular system in human body that involves transportation of…

Q: e body. 02 in systemic capillaries enters body cells by simple diffusion, then enters as a metabolic…

A: This passage is talking about the gaseous exchange from the alveoli that is taking in of oxygen and…

Q: Describe one functional difference and one structural difference between veins and arteries

A: Arteries convey oxygenated blood from the heart, while veins convey oxygen-drained blood back to the…

Q: Air rushes into the lungs of humans during inhalation because

A: The main function of the lungs is the process of gas exchange called respiration or breathing.

Q: In this figure I have blacked out the gases exchanged in the lung (top) and at the tissues (bottom).…

A: Aerobic  Respiration:  C6H12O6 + 6O2 → 6CO2 + 6H2O.

Q: Can someone explain this diagram? For example, it says here the pulmonary arteriole carries…

A: Introduction  Plasma, blood cells, and platelets make up the fluid connective tissue that makes up…

Q: Down Below is a concept map that connects the digestive, circulatory, and respiratory system. Add…

A: Concept maps are done to depict the mechanisms of the different organ systems of the body. It is…

Q: In cytokine storm, what are three things that happen to reduce gas exchange? I swelling increases…

A: Cytokine storm is the exaggerated reaction of the body's immune system and is one of the major…

Q: Cartilage has primary function to: keeps the windpipe open all the time increase the surface area O…

A: Hyaline cartilage present in tracheal wall . It provides support and prevent trachea from…

Q: which of the following processes involves anatomy from both the respiratory and cardiovascular…

A: The circulatory system and the respiratory system are two different organ systems in the human body…