淋浴花洒哪个牌子质量好用又实惠 Respiratory system

Key facts The respiratory system brings oxygen into your body and removes carbon dioxide. The respiratory system has many different parts each with its own function. It helps you breathe, filter air, protect your lungs and produce sound. Health conditions such as asthma and colds can affect the respiratory system and cause symptoms. You can keep your respiratory system healthy by not smoking, eating well, staying active and getting vaccinated. What is the respiratory system

The respiratory system brings oxygen into your body and helps to remove carbon dioxide.

The lungs are a main part of your respiratory system. They sit in your chest and are protected by your ribcage.

Problems with your respiratory system can reduce the amount of oxygen that reaches your lungs. This can make you unwell.

What is the function of the respiratory system?

The respiratory system has several important functions. These functions help the body get the oxygen it needs. Important functions are:

Breathing — it helps you breathe air in and out. Gas exchange — in your lungs, oxygen goes into your blood and carbon dioxide lees your blood. Filtering air — your nose filters, warms and moistens the air you breathe before it reaches your lungs. Protection — the respiratory system has mucus and tiny hairs that trap and remove dust and germs to keep your lungs clean. Sound production — the larynx (voice box) produces sound for speaking. What are the different parts of the respiratory system?

Your respiratory system starts at the nose and mouth. It then continues through the airways and lungs. The main parts of your respiratory system are your:

nose and mouth pharynx — also known as your throat larynx — also known as your voice box epiglottis — a small flap of tissue that closes when you swallow to prevent food from entering your trachea (windpipe) trachea — the tube-like airway that lets air move between your larynx and your lungs. lungs — the body organ where gases enter and lee your blood

Each lung is divided into sections known as lobes. You he 3 lobes in your right lung and 2 lobes in your left lung. The left lung is smaller because it shares space in the chest with the heart.

Inside your lungs there are:

bronchi — your windpipe splits into 2 smaller tubes known as bronchi bronchioles — your bronchi branch out into even smaller tubes known as bronchioles alveoli — the tiny air sacks at the end of each bronchiole, you he thousands of them pleura — a slippery sack that covers your lungs inside your chest

The lungs don't he their own muscles for breathing. Other muscles nearby help with breathing. The most import one is the diaphragm.

Diagram of the respiratory system. How does your respiratory system work?

You breathe in when your diaphragm contracts and flattens out. At the same time, your chest expands, which then pulls air into your body.

When you breathe air in through your nose and mouth, it gets warmed and moistened. The air passes through your larynx.

Air then passes down the windpipe and bronchi into your lungs. On the way, mucus and tiny hairs trap dirt and germs.

Once inside your lungs, air fills small air sacs called alveoli. These sacs are next to blood vessels. Oxygen trels from your alveoli into your bloodstream from the air you breathe in. Carbon dioxide trels from your bloodstream into your alveoli. You then breathe out the carbon dioxide.

What medical conditions are related to the respiratory system?

Respiratory conditions affect your airways and lungs. Respiratory conditions can be acute (short term) or chronic (long lasting).

Some examples of lung conditions that can affect the respiratory system include:

asthma chronic obstructive pulmonary disease (COPD) hay fever

Many infections can cause respiratory problems. Infections can be caused by bacteria, viruses or fungi. Common infections are:

colds and the flu COVID-19 sinusitis, laryngitis and pharyngitis pneumonia bronchitis whooping cough

Respiratory infections that are common in children are:

croup bronchiolitis (usually caused by respiratory syncytial virus (RSV)) coughs and colds Symptoms of respiratory conditions

Symptoms of problems with the airways and lungs may include:

a runny or blocked nose sore throat breathlessness wheezing coughing with or without coughing up mucus or blood high temperature chest pain

If someone is hing severe difficulty breathing and or coughing up a lot of blood and/or turning blue, seek help straight away. Call triple zero (000) and ask for an ambulance.

CHECK YOUR SYMPTOMS — Use the Symptom Checker and find out if you need to seek medical help.

How can I take care of my respiratory system?

To keep your respiratory system healthy:

don't smoke oid harmful factors such as smoke, dust and chemicals eat a healthy diet maintain a healthy weight he an active lifestyle

If you he a health condition, check with your doctor before you start exercising. Try to exercise away from busy roads with high levels of air pollution.

To reduce your risk of getting or spreading respiratory infections:

wash your hands regularly stay home when you are unwell cover your mouth and nose when coughing or sneezing

Consider hing the flu vaccine each year and keep up to date with your COVID-19 vaccinations. Ask your doctor about other vaccinations that help prevent respiratory conditions such as whooping cough and pneumonia.

FIND A HEALTH SERVICE — The Service Finder can help you find doctors, pharmacies, hospitals and other health services.

Resources and support

Lung Foundation Australia has information and support for Australians with lung disease or lung cancer.

Visit Pregnancy Birth and Baby to learn more on colds and flu in babies and children.

You can also call the healthdirect helpline on 1800 022 222 at any time to speak to a registered nurse (known as NURSE-ON-CALL in Victoria) for more information and advice.

Other languages

Health Translations Victoria has asthma fact sheets and first aid plans in many community languages.