35 Amazing and Interesting Facts about Nose | Amazing Facts 4U
- There are at least 14 different nose types found in humans. This was found by Abraham Tamir, a professor from Israel after surveying 1,793 nose images.
- The shape of the nose depends on the ethnic background of a person.
- Positions of upper and lower lateral cartilages and nasal bones actually define nose shape.
- Females have shorter noses compared to men.
- The human nose is made up of only 5 different types of muscles which are dilatator naris anterior, dilatator naris posterior, depressor septi, nasalis, and procerus.
- The roof of the human mouth is nothing but the floor of the nasal cavity. The ethmoid bone separates the nasal cavity and brain.
- Different people have different sneezing styles and these styles are genetically determined.
- Amazingly when we sneeze, about 40,000 droplets are blasted from our nostrils and mouth at a speed of up to 100 miles per hour.
- It has been found that in women, the nose grows until the age of 15 to 17 and for men, the age is 17 to 19.
- Nose droops and lengthens over time because of gravitational pull which happens because breaking down of elastin and collagen in the nasal tip.
- The human nose is the best air filter in the world. It is lined up with hairs that block germs and dust. Grooves in the nasal cavity make air swirl like stream currents. The inhaled hair is moistened and warmed to protect the sensitive tissues of the lungs. The mucus lining of the nasal cavity also captures cold viruses and pollen which cannot be stopped by hair.
- Amazing fact is that an average adult’s nose filters about 20,000 litres of air every day running round the clock!
- Human sinuses and nose produce Mucus which contains white blood cells and enzymes which can fight infections. We produce up to a liter a day and it doubles when we catch an infection. Amazing part is we swallow most of it!
- When someone inhales dry air, the air picks up moisture content from mucus making the mucus pasty which we call snot.
- Nose plastic surgery is known as rhinoplasty which is the second most common cosmetic surgical procedure second only to breast augmentation. The nose job is the most difficult cosmetic and functional operation done by plastic surgeons because the difference between a good and bad outcome may be only one millimeter.
- When a person becomes sick because of viral infections, the nose becomes runny as it produces extra in an attempt to kill the invading microbes.
- Amazingly humans are capable of detecting 10,000+ scents with special types of cells known as olfactory nerve cells which number about 12 million in human nose. Two small odor detecting patches positioned high in the nasal passage contain most of the olfactory cells. Still it is far less sensitive than other animals such as dogs.
- Humans gradually lose some of their smelling ability due to decreasing olfactory nerve cells with age. At the age of 80, about 50% of smelling capabilities are lost.
- Human have 350 useful olfactory receptor genes in contrast to mice which has 1,300. By comparison we have about 40 sensors to taste and just 4 to perceive color vision.
- Fact is humans don’t smell with nose. The olfactory nerve cells in nose are only responsible for capturing smell and sending them to the brain which identifies the smell.
- Amazingly anything that human nose cannot smell is lethal to humans especially some gases.
- Each individual human has an exclusive smell print Each of us has scent blind spots, meaning exact odors we can’t pick up on. Thus for a specific smell, two different people may have different perception.
- Sense of smell in women is stronger than sense of smell in men. Female nose also becomes hypersensitive when they become pregnant resulting in unusual carving and abnormal taste sense.
- Some people may have a very strong sense of smell. This is known as hyperosmia.
- Inability to smell is scientifically known as anosmia. Inability to smell something correctly is known as dysosmia.
- Sense of smell is the only one of the 5 senses in humans which has direct connection with hippocampus which is the part of the brain responsible for memory. The result is that several types of smells can bring some memories back.
- Zinc deficiency in body can also lead to loss of smelling sense.
- Parkinson’s disease, Alzheimer’s disease and diabetes can also lead to loss of smelling sense.
- Human babies know their mothers by the scent of their mothers.
- Less of human brain is dedicated to smelling as opposed to animals.
- Our voice quality, richness and depth of it in speaking and singing is mostly determined by the resonating structures of the throat and nose. The nasal voice we hear in someone with a cold and allergies is due to the loss of this nasal resonation as the air cannot pass through the nose.
- Humans release pheromones , which are a type of chemical released only in response to sexual attraction especially from nasal grooves in nostrils. Human nose is capable of detecting pheromones of opposite sex.
- Amazingly nose can break! It is a cartilage in nose that breaks as nose doesn’t have bone.
- Nosebleed can be caused by picking nose, allergies, exercise, dry air or cold. The bleeding is due to the breaking of septum which is a thin cartilage between two nostrils causing nosebleed.
- Amazingly the Maori tribe in New Zealand greet people by pressing their noses! Shaking hands as a gesture of greeting is unusual for them.
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