Mucus.
Mucus in the respiratory tract traps pathogens like bacteria and viruses, preventing them from entering the body. The mucus also contains enzymes that can break down and destroy pathogens, helping to prevent infections. Additionally, the cilia in the respiratory tract help to move the mucus, along with trapped pathogens, out of the body through coughing and sneezing.
The hairs and the mucus inside the nose trap and collect dust, bugs and other debris and prevent it from entering the lungs.
Mucus in the nose traps incoming particles like dust and bacteria, preventing them from entering the respiratory system. In the windpipe, mucus helps to trap and remove harmful substances that are breathed in, protecting the lungs from infection and irritation. The mucus also contains enzymes and antibodies that help to neutralize and eliminate pathogens.
Your nose has a defense mechanism that protects against pathogens: hair and mucus. The hair in your nostrils helps catch airborne bacteria as you breathe in and out of your nose. The mucus passes through the hair in your nostrils, and then, when you blow your nose, the mucus contains pathogens that make you sick. This is not a 100% effective system, because people get sick all the time.
That would be you immune system triggering your mucus membranes to expel pathogens in your nose out of your nose with your snot.
preventing pathogens from entering the nose and mouth
Nose and nasal passages. The hairs and mucus in the nose help filter out particles and pathogens, while the nasal passages warm and humidify the air before it reaches the lungs.
hair is present in our nose which prevents dust and dirt from entering our nose and then to the body.so when the dust and dirt is collected it forms mucus.the hair acts like a filter.so u blow ur nose to remove the mucus.
Mucus traps and removes harmful particles, such as bacteria and viruses, from the respiratory system. It also helps to prevent these pathogens from entering the body by covering and lining the respiratory tract, acting as a physical barrier. Mucus contains antimicrobial substances that can help to neutralize pathogens before they cause an infection.
Nose hairs and mucus lining in the nostrils help trap particles from the air, preventing them from entering the respiratory system. The hairs act as a physical barrier, while mucus helps to capture and filter out contaminants before they reach the lungs.
To prevent sand entering into their nose