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Lung : structure of the lung - role of the lung


 What Is Lung?

Lung is an important organ in the body that helps with breathing.

Lung is an essential organ in the respiratory system. It helps in the exchange of oxygen and carbon dioxide and also plays an important role in the regulation of body temperature.

Lung, in air-breathing vertebrates, either of the two massive organs of breathing located in the chest hollow space and accountable for adding oxygen to and removing carbon dioxide from the blood. In people every lung is encased in a skinny membranous sac referred to as the pleura, and every is hooked up with the trachea (windpipe) by using its essential bronchus (massive air passageway) and with the coronary heart by using the pulmonary arteries. The lungs are tender, mild, spongy, elastic organs that commonly, after delivery, always contain some air. If healthful, they will go with the flow in water and crackle when squeezed; diseased lungs sink.

What Is Lung

In the internal aspect of every lung, about two-thirds of the distance from its base to its apex, is the hilum, the point at which the bronchi, pulmonary arteries and veins, lymphatic vessels, and nerves enter the lung. The fundamental bronchus subdivides often after entering the lung; the ensuing device of tubules resembles an inverted tree. The diameters of the bronchi diminish in the end to less than 1 mm (0.04 inch). The branches 3 mm and less in diameter are known as bronchioles, which lead to minute air sacs known as alveoli (see pulmonary alveolus), in which the real gas molecules of oxygen and carbon dioxide are exchanged between the respiration areas and the blood capillaries.

Each lung is divided into lobes separated from one another by using a tissue fissure. The proper lung has 3 main lobes; the left lung, which is barely smaller because of the asymmetrical placement of the coronary heart, has  lobes. Internally, each lobe in addition subdivides into masses of lobules. Each lobule carries a bronchiole and affiliated branches, a thin wall, and clusters of alveoli.

In addition to respiration activities, the lungs carry out other bodily functions. Through them, water, alcohol, and pharmacologic sellers can be absorbed and excreted. Normally, almost a quart of water is exhaled daily; anesthetic gasses consisting of ether and nitrous oxide can be absorbed and eliminated by means of the lungs. The lung is also a real metabolic organ. It is concerned inside the synthesis, storage, transformation, and degradation of a variety of materials, consisting of pulmonary surfactant, fibrin, and different functionally various molecules (i.E., histamine, angiotensin, and prostaglandins).

A person not engaged in full of life physical activity makes use of most effectively approximately one-20th of the full available gaseous-change floor of the lung. Pressure inside the lungs is equal to that of the encircling surroundings. The lungs usually continue to be somewhat inflated because of a partial vacuum among the membrane covering the lung and that which strains the chest. Air is drawn into the lungs whilst the diaphragm (the muscular portion among the abdomen and the chest) and the intercostal muscular tissues settle, expanding the chest cavity and decreasing the stress among the lungs and chest wall in addition to inside the lungs. This drop in strain in the lungs draws air in from the environment.

The lungs are regularly involved in infections and accidents. Some infections can spoil good sized regions of a lung, rendering it useless. Inflammation from poisonous substances, consisting of tobacco smoke, asbestos, and environmental dusts, can also produce significant damage to the lung. Healed lung tissue turns into a fibrous scar unable to carry out respiration obligations. There isn't any purposeful proof that lung tissue, once destroyed, can be regenerated.

What is the respiratory system made of?

The respiratory system is made of many parts, including the nose, pharynx, larynx, trachea, bronchi, and lungs. The respiratory system does the work of breathing, which means taking in oxygen and getting rid of carbon dioxide. The air that we breathe in goes through the nose and into the pharynx. The pharynx is a tube that goes to the larynx, and the larynx is a tube that goes to the trachea.

The respiratory system is a collection of organs responsible for breathing. In humans and other mammals, the anatomy of a typical respiratory system includes the nose, pharynx, larynx, trachea, bronchi, and lungs. Air is brought into the respiratory system through the nose and mouth, where it is then filtered and moistened. The air then travels down the trachea, which branches into the left and right bronchi.

The respiratory system is made of the nose, mouth, throat, voice box, trachea, bronchi and lungs. The primary function of the respiratory system is to supply oxygen to the blood and remove carbon dioxide. This gas exchange process happens in the lungs where alveoli are clustered. The walls of the alveoli are one cell thick and are lined with tiny blood vessels called capillaries.

The breathing device has many exclusive elements that work together to help you breathe. Each institution of components has many separate components.

Respiratory system

The structure of the lung in the human body

  1. The lung is a unique organ in the human body. It is responsible for taking in air and releasing oxygen. The lung is located in the chest and is divided into four sections: the upper, middle, lower, and mediastinum. The function of each section is different.

  2. The lung is a large and complex organ in the human body. It is responsible for breathing, and is located in the chest. It is made up of many different parts, including the bronchial tubes, the alveoli, and the lungs themselves.

  3. The lungs are located just below the ribcage on each side of the human body. They are enclosed by two sheets of muscle, the pectoralis major and the pectoralis minor. The lower extremity of each lung is attached to the vertebral column by two bronchi. These bronchi come together in the middle of the lung and end in two small sacs, the alveoli.

The lungs are located in the chest on both sides of the heart within the rib cage. They are conical in shape with a slim rounded apex on the pinnacle, and a wide concave base that rests at the convex floor of the diaphragm. The apex of the lung extends into the base of the neck, attaining shortly above the extent of the sternal cease of the first rib. The lungs stretch from close to the spine in the rib cage to the front of the chest and downwards from the decreased part of the trachea to the diaphragm. The left lung shares space with the coronary heart, and has an indentation in its border known as the cardiac notch of the left lung to deal with this.The front and outer facets of the lungs face the ribs, which make mild indentations on their surfaces. The medial surfaces of the lungs face closer to the center of the chest, and lie in opposition to the coronary heart, first-rate vessels, and the carina in which the trachea divides into the 2 principal bronchi. The cardiac impression is an indentation formed at the surfaces of the lungs wherein they relax in opposition to the coronary heart.

Both lungs have a significant recession known as the hilum, in which the blood vessels and airways skip into the lungs making up the basis of the lung. There are also bronchopulmonary lymph nodes at the hilum.

  1. The lungs are surrounded via the pulmonary pleura. The pleurae are  serous membranes; the outer parietal pleura strains the internal wall of the rib cage and the internal visceral pleura without delay traces the surface of the lungs. Between the pleurae is a potential area referred to as the pleural cavity containing a skinny layer of lubricating pleural fluid.

What is the role of the lung in the human body?

  1. The lungs are a pair of organs located on either side of the chest. They are responsible for drawing in oxygen from the air and exhaling carbon dioxide. The lungs are made up of tiny air sacs called alveoli. The alveoli are lined with a network of blood vessels called capillaries.

  2. The lungs are vital organs that play a crucial role in human respiration. Every time we inhale, we draw in air that contains oxygen. This oxygen is then transferred to the bloodstream, where it is circulated to the rest of the body. The lungs also remove carbon dioxide from the blood and expel it from the body when we exhale.

  3. The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) branches into the left and right bronchi, which enter each lung. The bronchi branch into smaller tubes called bronchioles, which end in tiny air sacs called alveoli. There are about 300 million alveoli in each lung.

  4. The lungs are one of the most important organs in the entire human body. The primary function of the lungs is to take in oxygen from the air and then release carbon dioxide back into the atmosphere. Every time we breathe, it is the lungs that provide us with the oxygen that we need to live. Additionally, the lungs also help to regulate the temperature of the blood and remove any excess water that may be present.

  5. The lung is an essential organ in the human body. It is responsible for exchanging oxygen and carbon dioxide in the blood. The lungs are also responsible for getting rid of waste glasses, such as carbon dioxide, from the body. The lungs are made up of many small air sacs called alveoli.

What affects lung health in the human body?

  • Human lungs are incredibly important for human health. Our lungs are responsible for taking in oxygen and giving us carbon dioxide. Our lungs work together in tandem to make sure that we get the right amount of air, and if they're not functioning properly, it can have a serious effect on our health.

  • Lung health is an important issue for many people. There are many things that can affect it, such as smoking, air pollution, and environmental factors.

  • Lung health is affected by many things in the human body. Some of these things are: genetics, age, environmental factors, and smoking. Lung health can be improved by following some healthy habits.

  • Lung health is a topic of great interest to many people. People may wonder what affects lung health in the human body and how they can keep their lungs healthy. There are a few things that can impact lung health, such as smoking, pollution, and genetics.

Respiratory or lung problems can make it tough to respire. They are a common purpose for health practitioner visits in most nations.

You can get a breathing illness because of:

  • micro organism

  • viruses

  • mold (fungus)

  • polluted air

  • chemical substances

  • stagnant indoor air

  • cigarette, tobacco, or shisha smoke

  • secondhand smoke

  • allergies, consisting of:

  • pollen

  • dust

  • meals allergens (dairy, nuts, seafood, and so forth.)

  • pet dander and fur

  • insect waste (along with from dust mites)

What are the symptoms of lung in the human body?

Symptoms of lung cancer often do not appear until the disease is in advanced stages. Shortness of breath, coughing up blood, and chest pain are common symptoms at this late stage. Early-stage symptoms may include a persistent cough, coughing up blood, hoarseness, and weight loss.

It is important to know the symptoms of lung cancer, so that you can catch it early and get treatment. The symptoms of lung cancer can be different for each person. Some common symptoms are: a cough that does not go away, shortness of breath, pain in the chest or back, hoarseness, wheezing, blood in the sputum (phlegm), fatigue, and weight loss. If you have any of these symptoms, it is important to see a doctor right away.

Symptoms of lung cancer typically include coughing, shortness of breath, and chest pain. However, these symptoms may also be caused by other conditions such as a cold or flu. As a result, people with these symptoms may not think to get them checked out by a doctor.  Other symptoms that may occur include weight loss, fatigue, and clubbing of the fingers.

See your doctor in case you enjoy extreme lung signs. According to the American Lung Association, caution signs and symptoms of lung ailment encompass:


  • chronic cough that lasts for a month or longer

  • shortness of breath after little or no exertion

  • wheezing or noisy breathing

  • continual mucus or sputum for your lungs that lasts for a month or longer

  • continual chest pain that lasts for a month or longer

  • coughing up blood

Maintaining lung health in the human body

The importance of lungs in the human body cannot be understated. We need our lungs to breathe, which is something that we take for granted on a day to day basis. It is only when we are faced with a lung condition that we realize just how much we rely on our lungs to keep us healthy. This is why it is so important to take care of our lungs and to do everything we can to keep them healthy.  There are a number of things that we can do to keep our lungs healthy, and in this paper, we will discuss some of the most important things that you can do to keep your lungs healthy.  First and foremost, you need to quit smoking if you are a smoker. Smoking is one of the worst

The lungs are vital organs in the human body. Their primary function is to exchange oxygen and carbon dioxide with the outside world. The lungs are also responsible for maintaining lung health. There are many ways to keep your lungs healthy and functioning properly. Some of these include: quitting smoking, avoiding secondhand smoke, avoiding air pollution, and exercising regularly.

While your body has a integrated system to hold your lungs healthy, there are numerous crucial matters you can do each day to assist reduce your chance of lung disorder or to ease signs:

  • Avoid secondhand smoke.

  • Avoid the outside while there are excessive tiers of air pollutants or pollen.

  • Brush your enamel a minimum two times each day, and spot your dentist often to help prevent mouth infections.

  • Carry an alcohol-based hand cleanser.

  • Check your own home for mold.

  • Consider the usage of an air purifier interior to lessen air pollution from dirt, pet dander, and chemical compounds.

  • Don’t bite tobacco.

  • Don’t smoke.

  • Get regular aerobic exercising, which includes strolling and walking, to help improve your lung ability.

  • Get vaccinated towards the flu and pneumonia, in particular if you have allergies.

  • If you’re touring overseas, talk to a doctor about getting encouraged vaccinations.

  • See a health practitioner often to get fitness checkups.

  • Test your home for radon.

  • Wash your hands with soap and water numerous times in the afternoon.

Lung transplant

A lung transplant is an operation to get rid of and replace a diseased lung with a wholesome human lung from a donor.

A donor is generally someone who has died, but in rare instances a segment of lung can be taken from a living donor.

A lung transplant is surgery completed to cast off a diseased lung and replace it with a healthy lung from some other person. The surgery may be achieved for one lung or for each. Lung transplants may be performed on humans of virtually every age from newborns to adults as much as age 65 and every now and then even later.

wait times have consequences “The longer a patient has to wait for a transplant, the less likely it is that they will be able to receive a transplant. There are numerous factors involved in this, and it doesn’t just boil down to age or illness. Insurance status is also important. Those who do not have insurance coverage may not be listed in the regional organ sharing system, which means that their name will not come up when an organ becomes available.

  1.  Medical And Anatomical Concept Of The Human Body
  2.  Diseases Diagnosis and Treatment-A/Z
  3. Medical Specialties
  4. Organ surgery : Detailed explanation
  5. Diagnosis And Medical Examinations
Lung : structure of the lung - role of the lung

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