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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.

9,117 Questions
Head, Ears, and Nose
Respiratory System
Winter

Why does cold weather cause runny noses?

A couple different cold-weather factors contribute to there being just too much fluid for the nose to hold (gross, I know, but true).

First, because winter air tends to be very dry, the nose has to produce a lot of extra fluid to humidify it properly on its way to the lungs. Sometimes it makes so much that it runs right out the end of the nose.

What’s more, when that warm, moisturized air gets breathed back out into cold, dry surroundings, it condenses on the cold tip of the nose, adding even more fluid.

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Medical Terminology
Respiratory System
Medical Definitions and Word Differences

What is the medical term meaning voicebox?

The proper name for the voice box is the larynx and it connects the pharynx to the trachea. Pitch and volume are controlled here by manipulating the vocal chords, you wouldn't be able to speak without one.

The voicebox is also known as the larynx, across which the vocal cords -- the structures responsible for sound production during phonation -- are stretched.

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Respiratory System

What are the functions of the respiratory system?

The main function of the respiratory system is to discard waste in the form of carbon dioxide and to take in oxygen. Carbon dioxide is carried to the lungs in erythrocytes (red blood cells) and released, then the erythrocytes collect oxygen and deliver this essential gas to our bodies. The mucus in the respiratory system helps to protect it as well as to carry debris out of the respiratory tract, which is assisted by the movements of little hair-like structures called cilia. Smoking causes the cilia to stop working and that is why smokers have coughs. It takes 28 days for the cilia to wake up and start working again after someone quits smoking. The cilia also help remove pollution.

The primary function of the respiratory system is to exchange gases. Oxygen is inhaled so the blood can carry it to the parts of the body, and carbon dioxide, a waste product, is breathed out

- a gas exchange system

- a transport system

- regulation of the pH and body fluids

- regulation of body temperature

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Health
Exercise
Cardiovascular Health
Respiratory System

What is the role of pons and medulla oblangata in regulating the cardiovascular and respiratory systems and how is it effected by exercise?

The pons and medulla oblongata are part of the central nervous syst. (CNS) During times of physical or emotional stress, the autonomic nevous syst.(ANS) stimulate the sinoatrial node (SA) and the atrioventricular node (AV) and the cardiac muscle itself. When the demand declines the heart adjusts, the parasympathetic nerves slow and steady the heart.

For breathing:

Neural centers that control respiratory rhythm and depth are located mainly in the medulla and pons. the medulla sets the basic rhythm of breathin, it contains a pacemaker or self-exciting inspiratory center. When its neurons fire, a burst of impulses travels along the phrenic and intercostal nerves to excite the diaphragm and external coastal muscles, respectively. The medulla also contains an expiratory center that inhibits the pacemaker in a rhythmic way. Impulses going back and forth between medulla centers mantain a rate of 12-15 respirations/min. Pons centers appear to smooth out the basic rhythm of inspiration and expiration set by the medulla

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Health
Respiratory System

How do you take care of your respiratory system?

Our lungs are precious, and the most important part of our respiratory system. These organs are responsible for absorbing and distributing all the oxygen that our body needs in order to function normally.

Fitness: It is important to keep your lungs fit. Regular physical activity is the only consistent way to ensure the fitness of your respiratory system. The more you use your lungs and diaphragm, the more fit they will - just like any other muscle in your body.

Protection: The more careful we are about what we breath into our lungs, the less chance there is that they will be damaged. There are some inadvertent or accidental situations that we can be careful to avoid - staying inside on very smoky or smoggy days, wearing masks when using harmful chemicals, etc. But there are also some very deliberate things people do that harm their lungs - smoking is the worst. And the easiest way to avoid smoking, is never to start.

Most respiratory diseases are air-borne. It is important to breathe clean, fresh air. Cover your mouth and nose when you are in a crowed place or when the air is heavily polluted. Wearing a mask over the nose is now common in urban areas and in factories.

Respiratory ailments are contagious. Colds and coughs are visible signs of most respiratory ailments. Do not stay too close to people who have them. When they cough or sneeze, germs are sure to be in the air. You may catch these germs and get sick, too. In addition, get immunized against flu yearly, get pneumonia vaccine as recommended (based on your age and health history), and make sure you have received the TDaP vaccine at least once to offer protection against pertussis (whooping cough).

Breathing from your abdomen can help as it relaxes your accessory breathing muscles and gets you breathing more naturally as were designed to do. Lie on your back with one hand resting gently on your abdomen and one on resting on your chest, and see which one rises as you breathe. You should aim to keep your chest hand still and abdomen hand rising and falling with your breathing.

If you are an asthmatic, make sure you have the knowledge and skills to keep your condition well-controlled. If you are frequently using your rescue inhaler, it's a sign that you need to add controller medications.


The best way of keeping your respiratory system healthy is with exercise and fresh air. The other thing to do is avoid air pollutants and definatley do not smoke.
poop if you are smoker you can quit, excercise daily,and have a balanced diet and also get medical check ups regularly
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Cold and Flu
Head, Ears, and Nose
Symptoms
Respiratory System

How can you make your throat sore?

by shouting like a maniac or eat crisps

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Respiratory System

What structure in the airway prevents food and liquid from entering the lungs?

The epiglottis is a leaf-shaped, flap-like structure made of elastic cartilage that covers the trachea like a lid. The epiglottis directs food to the stomach (through the esophagus) and air to the lungs (through the trachea).

When you swallow, your epiglottis closes off your larynx leaving the only open passage the esophagus. This is why we cannot breathe and swallow at the same time.

If people do not have good dental hygiene they leave small particles of food which they leave in their mouths. These get mixed with air and can be breathed into the lungs. Many asthmatics swallow using tongue thrust. This too leaves food in the throat. This also causes food to be breathed into the lungs. Thus the epiglottis is not perfect but only works when food is actually sent down in a deliberate swallow.

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Health
Respiratory System

What is mucosa thickening in nasal cavity?

The mucosa is the lining of the sinuses (or the inside of your mouth) and it gets thickened when irritated by infection or allergies.

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Health
Cold and Flu
Respiratory System

What is the speed of the average sneeze?

An average sneeze comes from your mouth and nose at somewhere between 40 and 100 mph.

There can be variation:

This was tested on MythBusters and they found their fastest sneeze being 39 mph. Not to say some people don't sneeze faster, but 102 mph is the fastest recorded speed. The world record has been said to be at 115 km per hour [71.5 mph].
The average person can sneeze as fast as up to 700mph.
100 MPH.

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Biology
Human Anatomy and Physiology
Respiratory System

What are five examples of organisms that use cellular respiration?

  • Plants
  • Humans
  • Fungi
  • Fish
  • Reptiles
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Biology
Biochemistry
Respiratory System

Food plus oxygen gas - Carbon dioxide plus water plus cellular energy what cellular process is represented?

This process is aerobic respiration which is written in words instead of an equation .

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Respiratory System

What do gas exchange systems have in common?

The exchange surfaces are moist.

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Respiratory System

What is the location of the respiratory system?

The respiratory system happens in the chest. your throt

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Health
Seasons
Respiratory System

Why is hard to breathe in summer?

There can be numerous reasons why it may be more difficult to breathe in the summer, some are, seasonal allergies, ozone, poor air quality, humidity, pollen, open windows leaving in car exhaust fumes and other air pollutents. Cheyzer

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Respiratory System

How do the lungs perform their function?

A muscle below your lungs, called your diaphram, contracts, letting air in your air sacs within your lungs, and relaxes, pushing carbon dioxide out. The oxygen is then used to replenish the life of your blood cells, by your heart taking oxygen and giving carbon dioxide from your blood cells.

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Respiratory System

What do sinuses do in the respiratory system?

they reduce the weight of the skull and produce mucus for the nasal passage and also they moisturize the air taken in through the nose.

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Genetics
Respiratory System

What are the three characteristics of respiration?

1: Aerobic (with oxygen) or anaerobic (without oxygen)

2: GLucose + oxygen -> Water + Carbon dioxide + Energy

3: iT is a form of combustion

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Chemistry
Respiratory System

What is the purpose of soda lime in a spirometer?

To absorb the carbon dioxide by bonding with the soda lime to form sodium carbonate.

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Biochemistry
Health
Respiratory System

What is the prognosis for respiratory acidosis?

If the underlying condition that caused the respiratory acidosis is treated and corrected, there may be no long term effects.

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Digestive System
Respiratory System

How do symbiotic interactions impact digestion?

There are symbiotic relationships between animals and bacteria in the digestive area. The animals give the bacteria a place to live and the bacteria help break down food. Digestion would be a lot more difficult without these symbiotic relationships.

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Respiratory System

What happens when you get the air knocked out of you?

Your lungs collapse.

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First Aid
DIY Projects
Respiratory System

Trace the route of air from the nares to an alveolus?

During breathing air enters the nose by passing through the external nares( nostrils)=> pharynx=>larynx=> trachea=> The trachea (windpipe) divides into two main bronchi (also mainstem bronchi), the left main bronchus and right main bronchus. The right main bronchus subdivides into three lobar bronchi while the left main bronchus divides into two. The lobar bronchi divide into => tertiary bronchi, also known as segmental bronchi, each of which supplies a => bronchopulmonary segment. A bronchopulmonary segment is a division of a lung that is separated from the rest of the lung by a connective tissue septum.. There are ten segments per lung, but due to anatomic development, several segmental bronchi in the left lung fuse, giving rise to eight. The segmental bronchi divide into many => primary bronchioles which divide into =>terminal bronchioles, each of which then gives rise to several => respiratory bronchioles, which go on to divide into 2 to 11 => alveolar ducts. There are 5 or 6 =>alveolar sacs associated with each alveolar duct. The alveolus is the basic anatomical unit of gas exchange in the lung.

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Health
Symptoms
Respiratory System

What are symptoms of respiratory acidosis?

Respiratory acidosis, also called respiratory failure or ventilatory failure, causes the pH of blood and other bodily fluids to decrease, making them too acidic.

Respiratory acidosis occurs when the lungs can't remove enough carbon dioxide (CO2). Excess CO2 makes the blood more acidic. This is because the body must balance the ions that control pH.

Normally, the lungs take in oxygen and exhale CO2. Oxygen passes from the lungs into the blood. CO2 passes from the blood into the lungs. However, sometimes the lungs cannot remove enough CO2. This may cause respiratory acidosis.

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Respiratory System

How flamingos respiratory system work?

They breathe in, then they breathe out, which supplies there body with oxygen and eliminates CO2.

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Zoology or Animal Biology
Respiratory System

Can you breathe through your eyes?

The corneas, the clear outer coverings through which light passes to the rest of the eye, have no blood vessels and get their oxygen directly from the atmosphere. In this sense, you "breathe" through your eyes. However, the amount of oxygen gotten this way can't keep much more than the corneas of the eye alive.

The inside corner of each eye also has a small tube running to the nose to drain excess tear fluid from the eyes. When you cry, the tear production is enough to overwhelm the drainage capacity of these small tubes and the tears overflow onto your cheeks. You must also often blow your nose to get rid of the excess fluid that does drain. You can also blow a small amount of air out the corners of your eyes through these tubes but you can't inhale through them.

  • 4 years ago you are wrong you can breath through your eyes only at sertain time and breathing through your eyes is only used in amertainsys and your cornias srivle up and go dry
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