Briefly discuss about the human respiratory system.?

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Answer

The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are lungs, which carry out this exchange of gases as we breathe...

In humans, the average rate of breathing depends on age.

Answer

HUMAN RESPIRATORY SYSTEM

the respiratory system is a biological system consist of specific olrgan and structure used for gas exchange in human, animal and plants also

in human =

takes up oxygen and expel carbon Di oxide through respiratory system

hope enough to understand

thanks

Answer

Human Respiratory System

The human respiratory system is a vital system responsible for the exchange of gases between the body and the environment. It consists of several organs and structures that work together to ensure the intake of oxygen and the removal of carbon dioxide.

Organs of the Respiratory System:
1. Nose and Nasal Cavity: The nose is the primary entrance for air. It is lined with tiny hairs and mucous membranes that filter and humidify the incoming air. The nasal cavity also contains olfactory receptors that enable the sense of smell.

2. Pharynx: The pharynx, commonly known as the throat, serves as a passage for both air and food. It connects the nasal cavity and mouth to the larynx and esophagus, respectively.

3. Larynx: The larynx, or voice box, is located at the top of the trachea. It contains vocal cords that vibrate to produce sound during speech.

4. Trachea: The trachea, also known as the windpipe, is a tube lined with ciliated cells and cartilage rings. It carries air between the larynx and the bronchi, preventing the collapse of the airway.

5. Bronchi and Bronchioles: The trachea divides into two bronchi, each leading to one lung. Inside the lungs, the bronchi further divide into smaller bronchioles, eventually ending in tiny air sacs called alveoli.

6. Lungs: The lungs are the main organs of respiration. They are located in the chest cavity, protected by the ribcage. The right lung has three lobes, while the left lung has two lobes to accommodate the heart.

Respiration Process:
1. Inhalation: The process of breathing in air is called inhalation. It involves the diaphragm and intercostal muscles contracting, causing the chest cavity to expand. This expansion lowers the pressure inside the lungs, allowing air to rush in.

2. Gas Exchange: In the alveoli, oxygen from the inhaled air diffuses into the surrounding capillaries, while carbon dioxide from the blood diffuses into the alveoli to be exhaled.

3. Exhalation: Exhalation is the process of breathing out air. The diaphragm and intercostal muscles relax, causing the chest cavity to return to its original size. This increases the pressure in the lungs, forcing air to be expelled.

4. Transport of Gases: Oxygen binds to hemoglobin in red blood cells, which are then transported throughout the body. Carbon dioxide, produced as a waste product, is carried back to the lungs to be exhaled.

The human respiratory system plays a crucial role in providing oxygen to the body's cells and eliminating carbon dioxide, thus maintaining homeostasis. Any disruptions or diseases affecting this system can have significant implications for overall health and well-being.

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