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Respiratory System

The respiratory system includes the lungs and the airway. The questions in this category focus mainly on the anatomical and physiological processes associated with breathing.

500 Questions

Why does the respiratory system need the diaphragm?

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because the diaphragm helps the lungs with the breathing.<3

What structural characteristics of alveoli make them an ideal site for diffusion of gases?

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Three factors are ideal for high gas exchange between bloodstream and alveoli: # Large surface area- Hundreds of thousands of alveoli, each one shaped as a spherical sac, increase the surface area massively to increase the volume gases that can be taken up. # Large concentration grad.- fast-moving blood flow maintains a steep conc. gradient. # Small diffusion distance-The distance for O2 and CO2 is roughly two cells thick ie. 40 micrometres.

What is one reason the respiratory system is important to the digestive system?

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The Circulatory System pumps blood and the Respiratory and Digestive System carry it though your body.

How common is a pulmonary embolism?

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I have just been discharged from hospital after my third pulmonary embolism and second in a year. I think it helps to get to hospital as soon as poss if you are having symptoms.

Give two reasons why it is better for human muscle cells to produce energy through aerobic respiration than through anaerobic respiration?

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Aerobic means "with oxygen" and anaerobic means "without oxygen." Cells produce energy at a might higher and faster rate with oxygen than without.

What are the three stages of respiratory system?

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The Process of the Respiratory System I am a Respiratory Therapist, so this is easy for me. During inspiration, air(gas) enters either through the nose or the mouth. As the air reaches the throat it becomes warmed and humidified and then passes into the trachea. It follows the trachea down into the bronchi then to the bronchioles(smaller versions of the bronchi) then into the alveoli. The alveoli are tiny sacs at the end of the bronchioles that look like clusters of grapes. After the air(gas) enters the alveoli, the oxygen from the air crosses the alveolar-capillary membrane and enters the blood. The blood then carries the oxygen to the organs of the body. During expiration, as the oxygen in the alveoli is entering the blood, carbon dioxide leaves the blood, enters the alveoli and is breathed out.

What is the tiny sacs found at the end of the branches?

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They are called the aveolar sacs .they consists of aveoles and the exchange of gases takes place here.

What are five functions of the nasal cavity in he respiratory system?

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The respiratory system supplies the body with O2 (respiration). This system also disposes of CO2 (ventilation). The respiratory system houses the olfactory receptors. Gas exchange between blood and air in the alveoli(external respiration)Gas exchange between the blood and cellular tissue (internal respiration).

Where do goblet cells occur in the respiratory system?

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Goblet cells are in the respiratory epithelium, which lines the airways from the pharynx down into the lungs. They secrete mucous.

What prevents food from going into your throat?

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Food normally goes in your throat when you swallow. A coordinated swallow reflex, controlled partially by the tongue, helps you control the timing of swallowing.

What color is the nasal cavity?

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Usually it is pink, black, brown, or another color.

What might happen if you prick the balloon of the lung model?

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two lungs are surrounded by pleura , which is responsible for transmural pressure that makes the lungs inflated by gas when there is inspiratory process.

so when the puncture happens wherever the site , the pleura will lose its negative pressure , as a result Both lungs will collapse

it is late answer according to your Q time , but arriving late better than not arriving at all ^_^

i hope i could answer the Q

dr . Harith Ali

Will deep breathing help with respiratory problems?

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Yes it does, it is the respiratory system, meaning breathing system. :D

What other organ work with the diaphragm?

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The nose, nasal cavity, epiglottis, larynx, trachea, and the left & right bronchus.

What tissue prevents food and liquids from entering the respiratory tract?

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i think its the trachea but I'm only a 13 year old girl so what do i know. i guess i will see if I'm right tomorrow. ill get back with the answer

What are the three types of respiration?

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respiration means breaking down of food particles

i dont no want u meant?

What are the factors that influence your vital capacity?

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Factors which may affect tidal volume and therefore overall minute ventilation during invasive ventilation include: lung compliance and resistance, Correct ETT/ tracheostomy positioning, adequate cuff pressure, ventilator settings ( eg. Is the pt in a controlled or spontaneous mode of ventilation, the level of pressure support dialed up etc), the patients conscious state and the patency of the ETT/tracheostomy tube.

How do the cardiovascular system and respiratory system work together to remove waste products?

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it start in the respiratory system then pass trouth the cardiovascular system throuth the nose and mouth then ......... it start in the respiratory system then pass trouth the cardiovascular system throuth the nose and mouth then ......... it start in the respiratory system then pass trouth the cardiovascular system throuth the nose and mouth then ......... it start in the respiratory system then pass trouth the cardiovascular system throuth the nose and mouth then ......... it start in the respiratory system then pass trouth the cardiovascular system throuth the nose and mouth then .........

Which major organ is in the digestive and excretory?

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If I remember my schooling they are the lungs, liver,kidneys and the skin. Each organ filters the blood to remove toxins.

How do diseases in the circulatory and respiratory begin to develop?

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Diseases of the circulatory and respiratory systems begin to develop due to disorders of the heart and lungs.

How does breathing sustain human life?

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Oxygen is necessary for the muscles, tissues, and organs in your body. It is also extremely important for the brain to function, as a prolonged period of not-enough oxygen to the brain will result in brain damage and more severely brain death.

When you breathe, the Oxygen is inhaled into your lungs where it diffuses into the blood oxygenating the blood that is lacking oxygen as your heart pumps this non-oxygenated blood to the lungs.

Once the blood has been oxygenated by the lungs, the heart continues pumping this blood throughout the body and delivers the oxygenated blood to the various tissues, muscles, and organs in your body.

Then this blood is no longer containing oxygen, so the heart continues to pump it back through the heart and to the lungs to be re-oxygenated. And the cycle continues with each breath you take...


Oxygen is needed in the reformation of Adenosine Triphosphate (ATP) from ADP in the body. ATP is used in metabolic processes as an energy source and is therefore required for life.

What the structure of the respitory system?

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The pulmonary system is the portion of the cardiovascular system that takes deoxygenated blood away from the heart. It then takes this blood to the lungs and returns it back to the heart.