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: Bacteria and dust particles are moved back up the bronchiole by the sweeping motion of the: Cilia…

A: Introduction :- Layers of smooth muscle make up the bronchioles, which enable bronchodilation and…

Q: Capillary in lung) Alveoli in lung Capillary in tissue Poz Pco Poz = 100 mm Hg = 40 mm Hg PC0₂ = 40…

A: External respiration is the exchange of O2 and CO2 and it takes place because of differences in the…

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: 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: Starting from outside the body, what is the correct order of organs that air travels in the…

A: The nose and mouth are the beginning of the respiratory system, which continues through the airways…

Q: When a woman is very close to delivering a baby, she may hyperventilate. Breathing into a paper bag…

A: Women hyperventilate and over-breathing more frequently compared to men. This occurs when a woman is…

Q: 1. Respiration/Breathing = gas exchange

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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: The main cell involved in the exchange of gases in the peripheral tissue, is the cell that normally…

A: The system that helps in gas exchange in the body is known as the respiratory system. The…

Q: The effect of purposeful hyperventiliation just prior to diving and swimming under water is that:…

A: Hyperventilation is the process in which an individual begins to breathe faster than the normal…

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: 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 statements about oxygen transport is TRUE. Increases in temperature and…

A: In terms of primary sequence, myoglobin and hemoglobin are only distantly related. As myoglobin…

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 statements about the respiratory system is FALSE?   Question 5 options:…

A: NOTE: The options are numbered as 1, 2, 3 and 4. Respiratory system is one of the major biological…

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: What is the importance or value of having the lungs divided into lobes?

A: The process of breathing, which includes the inhalation and exhalation of air from and to 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: Diffusion improves with vascularization; gas delivery to cells is promoted if the blood contains…

A: The pathways via which blood is transported to body tissues are known as blood vessels. Closed…

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: 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: 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: What controls the movement of the lungs? Describe the flow of air into the lungs. Use the following…

A: Respiration is the process of exchange of gases ( oxygen and carbon dioxide) in which cells take up…

Q: In control of ventilation, which of the following is the most important?   PCO2 in the blood PO2 in…

A: The physiological systems involved in controlling breathing, or the passage of air into and out of…

Q: Pleural membranes surround the lungs. These membranes serve as the glue between the lungs and the…

A: The pleura is a closed sac of a serous membrane that contains serous fluid. The lung is pushed into…

Q: What are "respiratory droplets"? Mucus generated in the nasal cavities that drips down the back of…

A: Breathing refers to inhalation, exchange and exhalation of respiratory gases. In this oxygen is…

Q: which side of the heart delivers deoxygenated blood to the lungs for alveolar gas exchange? The…

A: In organisms, the circulatory system is controlled by the heart. It is a four-chambered structure in…

Q: During inhalation:     The diaphragm contracts and the external intercostals contract making the…

A: The respiratory system is one of the 11 vital and major organ systems of the human body that is…

Q: Match the description below with the proper function. Forced breathing [ Choose ] [Choose ] requires…

A: Forced breathing is a process seen in special conditions such as doing body work outs, running etc .…

Q: Put the following in order by numbering from 1 to 5 -  Diaphragm contracts and flattens and ribs…

A: Pulmonary  ventilation is a process of breathing, movements of air occurs in and out into the…

Q: which of the following vessels contain O2-rich, CO2 poor blood? pick two answers: pulmonary…

A: The cardiovascular system is a vital division of the body's circulatory system that concerns the…

Q: Which of the the following will increase bronchiolar resistance? increased mucous  decreased…

A: Bronchioles are air passageways within the lungs that branch off like tree limbs from the bronchial.…

Q: Write a note on respiratory system of human being.

A: The human body follows a hierarchy of organization which includes cells, tissues, organs, organ…

Q: Don't copy from Google Describe the structure and function of the pulmonary vascular system.

A: The circulatory system includes pulmonary circulation which is paired and circulated in a systematic…

Q: Alveoli that have normal ventilation and no blood flow has an alveolar PO2 of149 mmHg0 mmHg40…

A: The question is asking for the partial pressure of oxygen (PO2) in the alveoli that have normal…

Q: have unidirectional flow of air through the bronchi. Similar to humans, birds have a two-step…

A: The respiratory systems of birds is different from other vertebrates. Birds have relatively small…