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.
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.
Asked in 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
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手机500彩票客户端 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.
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
Asked in Health, Respiratory System
How do you手机500彩票客户端 take care of you手机500彩票客户端r 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 you手机500彩票客户端r lungs fit. Regular physical activity is the only consistent way to ensure the fitness of you手机500彩票客户端r respiratory system. The more you手机500彩票客户端 use you手机500彩票客户端r lungs and diaphragm, the more fit they will - just like any other muscle in you手机500彩票客户端r 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 you手机500彩票客户端r mouth and nose when you手机500彩票客户端 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 you手机500彩票客户端r age and health history), and make sure you手机500彩票客户端 have received the TDaP vaccine at least once to offer protection against pertussis (whooping cough). Breathing from you手机500彩票客户端r abdomen can help as it relaxes you手机500彩票客户端r accessory breathing muscles and gets you手机500彩票客户端 breathing more naturally as were designed to do. Lie on you手机500彩票客户端r back with one hand resting gently on you手机500彩票客户端r abdomen and one on resting on you手机500彩票客户端r chest, and see which one rises as you手机500彩票客户端 breathe. You should aim to keep you手机500彩票客户端r chest hand still and abdomen hand rising and falling with you手机500彩票客户端r breathing. If you手机500彩票客户端 are an asthmatic, make sure you手机500彩票客户端 have the knowledge and skills to keep you手机500彩票客户端r condition well-controlled. If you手机500彩票客户端 are frequently using you手机500彩票客户端r rescue inhaler, it's a sign that you手机500彩票客户端 need to add controller medications. The best way of keeping you手机500彩票客户端r 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手机500彩票客户端 are smoker you手机500彩票客户端 can quit, excercise daily,and have a balanced diet and also get medical check ups regularly
How can you手机500彩票客户端 make you手机500彩票客户端r throat sore?
Asked in Health, Cold and Flu, Respiratory System
What is the speed of the average sneeze?
An average sneeze comes from you手机500彩票客户端r 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.
Asked in 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手机500彩票客户端 swallow, you手机500彩票客户端r epiglottis closes off you手机500彩票客户端r 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.
What are five examples of organisms that use cellular respiration?
Asked in Biology, Biochemistry, Respiratory System
Food plus oxygen gas - Carbon dioxide plus water plus cellular energy what cellular process is represented?
Asked in Health, Seasons, Respiratory System
Why is hard to breathe in summer?
Asked in Respiratory System
How do the lungs perform their function?
A muscle below you手机500彩票客户端r lungs, called you手机500彩票客户端r diaphram, contracts, letting air in you手机500彩票客户端r air sacs within you手机500彩票客户端r lungs, and relaxes, pushing carbon dioxide out. The oxygen is then used to replenish the life of you手机500彩票客户端r blood cells, by you手机500彩票客户端r heart taking oxygen and giving carbon dioxide from you手机500彩票客户端r blood cells.
Asked in Genetics, Respiratory System
What are the three characteristics of respiration?
Asked in Digestive System, Respiratory System
How do symbiotic interactions impact digestion?
Asked in Respiratory System
What happens when you手机500彩票客户端 get the air knocked out of you手机500彩票客户端?
Asked in 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.
Asked in Health, Symptoms, Respiratory System
What are symptoms of respiratory acidosis?
The primary symptom would be increased respirations as the body attempts to clear the acidosis, to increase base pH. Respiratory acidosis can become so severe the person is short of breath (SOB). But typically the patient needs fluid replacement to restore 手机500彩票客户端ostasis--the lungs cannot clear acidosis by themselves-- and possibly external O2 administration. With fluid replacement, by IV opened wide (and potentially several IV bags of 1,000 ccs each administered over a few hours), the kidneys will be supported to clear the acidosis. Fluid replacement corrects any abnormal shifts in electrolytes which almost immediately reduces stress on striated muscles and smooth muscles, especially the heart and stomach. Kidney and respiratory function improves. Nausea, headache, CNS changes almost immediately begin to improve. However, it's imperative to identify the cause of acidosis and correct, then prevent it from occurring again, or the patient could return to acidosis within hours to a few days.
Can you手机500彩票客户端 breathe through you手机500彩票客户端r 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手机500彩票客户端 "breathe" through you手机500彩票客户端r 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手机500彩票客户端 cry, the tear production is enough to overwhelm the drainage capacity of these small tubes and the tears overflow onto you手机500彩票客户端r cheeks. You must also often blow you手机500彩票客户端r nose to get rid of the excess fluid that does drain. You can also blow a small amount of air out the corners of you手机500彩票客户端r eyes through these tubes but you手机500彩票客户端 can't inhale through them. 4 years ago you手机500彩票客户端 are wrong you手机500彩票客户端 can breath through you手机500彩票客户端r eyes only at sertain time and breathing through you手机500彩票客户端r eyes is only used in amertainsys and you手机500彩票客户端r cornias srivle up and go dry
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