Topic: GENERAL SCIENCE

Explanation
When we inhale, the air enters the nostrils and passes through the nasal cavity, then travels down the pharynx (throat) and into the trachea (windpipe). The trachea divides into two bronchi, one for each lung, and the air then enters the lungs , where oxygen is absorbed into the bloodstream and carbon dioxide is removed.

Explanation
The ribcage, also known as the thoracic cage . It is a bony structure that encloses and protects the lungs, heart, and other organs in the thoracic cavity. It is composed of 24 ribs , the sternum (breastbone) , and the 12 thoracic vertebrae.

Explanation
Lungs are two soft, spongy, large balloon-like organs located in the chest cavity, specifically in the thoracic cavity. They are responsible for exchanging oxygen and carbon dioxide through the process of respiration.

Explanation
The breathing centre of human body is lungs . Lungs are two soft spongy large balloon like organ located in the chest. The delicate lungs are protected by a cage of bones. This cage is called the ribcage.

Explanation
The air you breathe in enters the lungs through the windpipe (trachea). The trachea is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
Each bronchial tube (bronchus) is joined to each lung . The bronchi are airways that branch off from the trachea (windpipe) and enter the lungs, allowing air to pass through during breathing.

Explanation
When a person inhales , the air travels through the nose or mouth, into the larynx and then into the trachea ; which is the main passageway into the lungs. The trachea divides into a right and left bronchi. Bronchi branch into smaller tubes that become bronchioles .

Explanation
The trachea (windpipe) is a hollow tube in the chest. It connects the throat (pharynx) to the lungs , allowing air to pass through during breathing.

Explanation
During breathing, the clean, moist , and warm air enters the windpipe called the Trachea . The trachea is also known as the windpipe . It is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
When we inhale, the air enters the nostrils and passes through the nasal cavity, then travels down the pharynx (throat) and into the trachea (windpipe). The trachea divides into two bronchi, one for each lung, and the air then enters the lungs , where oxygen is absorbed into the bloodstream and carbon dioxide is removed.

Explanation
The ribcage, also known as the thoracic cage . It is a bony structure that encloses and protects the lungs, heart, and other organs in the thoracic cavity. It is composed of 24 ribs , the sternum (breastbone) , and the 12 thoracic vertebrae.

Explanation
Lungs are two soft, spongy, large balloon-like organs located in the chest cavity, specifically in the thoracic cavity. They are responsible for exchanging oxygen and carbon dioxide through the process of respiration.

Explanation
The breathing centre of human body is lungs . Lungs are two soft spongy large balloon like organ located in the chest. The delicate lungs are protected by a cage of bones. This cage is called the ribcage.

Explanation
The nose not only takes in air from our surroundings. But it also warms, moistens, and filters the air before it goes to the lungs. The nasal passages contain tiny hairs called cilia and mucous membranes that help to trap dust, bacteria, and other particles, preventing them from entering the lungs.

Explanation
The air you breathe in enters the lungs through the windpipe (trachea). The trachea is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
Each bronchial tube (bronchus) is joined to each lung . The bronchi are airways that branch off from the trachea (windpipe) and enter the lungs, allowing air to pass through during breathing.

Explanation
When a person inhales , the air travels through the nose or mouth, into the larynx and then into the trachea ; which is the main passageway into the lungs. The trachea divides into a right and left bronchi. Bronchi branch into smaller tubes that become bronchioles .

Explanation
The trachea (windpipe) is a hollow tube in the chest. It connects the throat (pharynx) to the lungs , allowing air to pass through during breathing.

Explanation
During breathing, the clean, moist , and warm air enters the windpipe called the Trachea . The trachea is also known as the windpipe . It is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
When we inhale, the air enters the nostrils and passes through the nasal cavity, then travels down the pharynx (throat) and into the trachea (windpipe). The trachea divides into two bronchi, one for each lung, and the air then enters the lungs , where oxygen is absorbed into the bloodstream and carbon dioxide is removed.

Explanation
The ribcage, also known as the thoracic cage . It is a bony structure that encloses and protects the lungs, heart, and other organs in the thoracic cavity. It is composed of 24 ribs , the sternum (breastbone) , and the 12 thoracic vertebrae.

Explanation
Lungs are two soft, spongy, large balloon-like organs located in the chest cavity, specifically in the thoracic cavity. They are responsible for exchanging oxygen and carbon dioxide through the process of respiration.

Explanation
The breathing centre of human body is lungs . Lungs are two soft spongy large balloon like organ located in the chest. The delicate lungs are protected by a cage of bones. This cage is called the ribcage.

Explanation
The nose not only takes in air from our surroundings. But it also warms, moistens, and filters the air before it goes to the lungs. The nasal passages contain tiny hairs called cilia and mucous membranes that help to trap dust, bacteria, and other particles, preventing them from entering the lungs.

Explanation
The air you breathe in enters the lungs through the windpipe (trachea). The trachea is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
Each bronchial tube (bronchus) is joined to each lung . The bronchi are airways that branch off from the trachea (windpipe) and enter the lungs, allowing air to pass through during breathing.

Explanation
When a person inhales , the air travels through the nose or mouth, into the larynx and then into the trachea ; which is the main passageway into the lungs. The trachea divides into a right and left bronchi. Bronchi branch into smaller tubes that become bronchioles .

Explanation
The trachea (windpipe) is a hollow tube in the chest. It connects the throat (pharynx) to the lungs , allowing air to pass through during breathing.

Explanation
During breathing, the clean, moist , and warm air enters the windpipe called the Trachea . The trachea is also known as the windpipe . It is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
When we inhale, the air enters the nostrils and passes through the nasal cavity, then travels down the pharynx (throat) and into the trachea (windpipe). The trachea divides into two bronchi, one for each lung, and the air then enters the lungs , where oxygen is absorbed into the bloodstream and carbon dioxide is removed.

Explanation
The ribcage, also known as the thoracic cage . It is a bony structure that encloses and protects the lungs, heart, and other organs in the thoracic cavity. It is composed of 24 ribs , the sternum (breastbone) , and the 12 thoracic vertebrae.

Explanation
Lungs are two soft, spongy, large balloon-like organs located in the chest cavity, specifically in the thoracic cavity. They are responsible for exchanging oxygen and carbon dioxide through the process of respiration.

Explanation
The breathing centre of human body is lungs . Lungs are two soft spongy large balloon like organ located in the chest. The delicate lungs are protected by a cage of bones. This cage is called the ribcage.

Explanation
The nose not only takes in air from our surroundings. But it also warms, moistens, and filters the air before it goes to the lungs. The nasal passages contain tiny hairs called cilia and mucous membranes that help to trap dust, bacteria, and other particles, preventing them from entering the lungs.

Explanation
The air you breathe in enters the lungs through the windpipe (trachea). The trachea is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
Each bronchial tube (bronchus) is joined to each lung . The bronchi are airways that branch off from the trachea (windpipe) and enter the lungs, allowing air to pass through during breathing.

Explanation
When a person inhales , the air travels through the nose or mouth, into the larynx and then into the trachea ; which is the main passageway into the lungs. The trachea divides into a right and left bronchi. Bronchi branch into smaller tubes that become bronchioles .

Explanation
The trachea (windpipe) is a hollow tube in the chest. It connects the throat (pharynx) to the lungs , allowing air to pass through during breathing.

Explanation
During breathing, the clean, moist , and warm air enters the windpipe called the Trachea . The trachea is also known as the windpipe . It is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
When we inhale, the air enters the nostrils and passes through the nasal cavity, then travels down the pharynx (throat) and into the trachea (windpipe). The trachea divides into two bronchi, one for each lung, and the air then enters the lungs , where oxygen is absorbed into the bloodstream and carbon dioxide is removed.

Explanation
The ribcage, also known as the thoracic cage . It is a bony structure that encloses and protects the lungs, heart, and other organs in the thoracic cavity. It is composed of 24 ribs , the sternum (breastbone) , and the 12 thoracic vertebrae.

Explanation
Lungs are two soft, spongy, large balloon-like organs located in the chest cavity, specifically in the thoracic cavity. They are responsible for exchanging oxygen and carbon dioxide through the process of respiration.

Explanation
The breathing centre of human body is lungs . Lungs are two soft spongy large balloon like organ located in the chest. The delicate lungs are protected by a cage of bones. This cage is called the ribcage.

Explanation
The nose not only takes in air from our surroundings. But it also warms, moistens, and filters the air before it goes to the lungs. The nasal passages contain tiny hairs called cilia and mucous membranes that help to trap dust, bacteria, and other particles, preventing them from entering the lungs.

Explanation
The air you breathe in enters the lungs through the windpipe (trachea). The trachea is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation
Each bronchial tube (bronchus) is joined to each lung . The bronchi are airways that branch off from the trachea (windpipe) and enter the lungs, allowing air to pass through during breathing.