A large amount of biscuits comes out of the oven. Your sports bag is filled with dirty clothes. How do you smell these smells and thousands of others? It’s your nose, of course.
Your nose makes you feel and that is a big part of why you are able to taste things. The nose is also the main door of the respiratory system, the respiratory system of your body. Let us be curious and learn more about the nose.
The nose has two holes called nostrils. The nostrils and nasal passages are separated by a septum (pronounced SEP-tum). Deep in your nose, near your skull, your septum is made of very thin pieces of bone.
Closer to the tip of the nose, the septum consists of cartilage (say: KAR-tel-ij), a softer material that is firmer than skin or muscle. It’s not as heavy as you are, and when you hit the tip of your nose, you can feel how it moves.
Behind your nose, in the middle of your face, is a room called the nasal cavity. It connects to the throat. The nasal cavity is separated from the inside of your mouth by the palate (the roof of your mouth).
Take in the air
As you inhale through the nostrils, you enter the nasal passages and nasal cavity. The air then enters the trachea through the pharynx (say: TRAY-kee-uh) or the tracheal artery before it enters the lungs.
Nose cardYour nose is also a one-way street. When you inhale air from your lungs, the nose is the way to leave your body. But your nose is more than a passage for the air. The nose warms, moisturizes and filters the air before it reaches the lungs.
The inside of your nose consists of a thin layer of tissue called the mucous membrane (for example: MYOO-kus MEM-brayne). This membrane warms and humidifies the air. The mucous membrane produces mucus, the sticky substance in the nose, which could be called snot. Mucus absorbs dust, germs and other small particles that can irritate the lungs. If you look into your nose, you will find that it can absorb large particles, such as dirt or pollen.
If something goes wrong, you can probably guess what’s going to happen next. You sneeze. By sneezing these unwanted particles can be transmitted up to 100 miles per hour!
Further down the nose are even smaller hairs, called eyelashes (say: SILL-ee-uh), which you can only see with a microscope. The eyelashes move back and forth to remove mucus from the sinuses and nasal bridge. Eyelashes can also be found in the respiratory tract, where they help to extract mucus from the lungs.
Sniff, sniff, take a breath
The nose lets you feel what’s happening in the world around you. Just as your eyes give you information about what you are doing when you are listening, you can understand with the nose what happens when you feel. It does not help you in your life.
The olfactory epithelium is located on the roof of the nasal cavity (the space behind your nose) (say: ol-FAK-tuh-ree eh-pooh-THEE-lee-um). Olfactory is a fancy word that refers to the feeling. The olfactory epithelium contains special receptors that respond to airborne odor molecules.
These receptors are very small – there are about 10 million in the nose! There are hundreds of different odor receptors, each of which can detect certain odor molecules. Studies have shown that odor can stimulate many types of receptors. The brain interprets the receptor combination to detect 10,000 different odors.
How signals are sent
When the olfactory receptors are stimulated, the olfactory bulb is the nerve of the olfactory bulb. The olfactory bulb is located under the front of the brain directly above the nasal cavity. Alsactory Signactory factory factory factory factory factory factory factory factory factory factory factory factory factory factory factory factory factory factory factory factory factory Yum!
Detecting odors is the way your brain talks to you about your environment. Have you ever felt your toast burn? In an instant your brain has the smell and a problem and you can check your toast.
You’ve learned to associate a certain smell, and you know it. Your sense of smell can help you to stay safe. For example, he may warn you not to smell something or help you detect smoke before you see a fire.
Most people only think about language when they think of taste. But without the help of the nose it does not work! The ability to smell and taste goes well
Take a bite to eat and think about it. Then press your nose and take another cock. Do you notice the difference? That’s just another