Belly Button Facts:
The belly button is located at the lower part of your body. It’s usually located between the pubic bone and the iliac crest. Most people have two or three small bumps on their belly button, which are called navels.
These are very sensitive areas, so it’s best not to scratch them with your fingernails or any other sharp objects!
The belly button is the only place where you can see your intestines when they’re moving. If these organs were removed from your body, then there would be no way to tell if you’ve eaten something poisonous or not.
There are many different kinds of belly buttons, but all of them have one thing in common – they’re located on the front side of the abdomen. There are also some belly buttons that are located behind the abdominal wall (abdomen).
Belly button shapes vary depending on what parts of the body they cover. Some belly buttons are round, while others are oval shaped. Others have a flat bottom and a rounded top.
Still others have an unusual shape that resembles a crescent moon.
Most people have one or two navels, but sometimes even one is enough to distinguish someone’s gender! However, it happens that people have even more belly buttons than just one or two. In fact, the highest number of belly buttons ever seen in someone was twenty-eight!
Belly button types are classified in many different ways, but the most common way of classifying them is the way that they are placed on your abdomen; whether they’re located on the lower part or the higher part of your body.
Children who have been born by cesarean section don’t generally have belly buttons in the usual place. This is because their navels are located on the higher part of their body. It’s very rare that children are born this way, but it has happened.
These children typically acquire a belly button in the usual place when they reach puberty and start to develop.
Belly button types can also be classified by their shape. They can be classified as a dimple, a dot, a circle, or simply just an outline. Other belly buttons have a small, short, and shallow indent.
A belly button that is larger and longer than others is known as an innie. When belly buttons are smaller and shorter than the others, they’re known as outies. Outies are far less likely to develop than innies.
The belly button is just one part of your entire torso. Other parts include the back, the chest, the arms, and the legs.
Belly button images are often used in paintings and other types of artwork. They are also used to identify the gender of an unborn baby before it’s born.
Most belly buttons are located behind the abdominal wall (abdomen). There are also some belly buttons that are located in front of it, on the abdominal wall itself.
Besides belly buttons, other organs inside the body cavity include the lungs, the heart, the liver, and the gastrointestinal tract. The heart is a muscular organ that pumps blood through the body. The liver is an organ that helps with digestion of food, removal of toxins, and many other things.
The gastrointestinal tract is a long tube that extends from the mouth to the rectum.
Besides the belly button, other organs inside the torso include the back, the chest, the arms, and the legs. The back is a large part of the torso that is located behind the chest and provides support. The chest is located in the middle of the torso where it expands when you inhale and contracts when you exhale.
The arms are located on both sides of the chest and they allow you to touch things. The legs are located on both sides of the torso as well, but they are much wider and stronger than the arms.
The abdomen is a part of the body that holds several organs such as the large and small intestines, the stomach, and many more. The belly button is a part of the abdomen that protrudes outwards from the body. It is located near the center of the abdomen and is commonly believed that every person is born with one.
The brain and spinal cord are also located inside the head. The brain controls a vast number of essential bodily functions including thinking, memory, and movement. The spinal cord connects the brain to the rest of the body and transmits nerve impulses from the brain to the rest of the body and vice versa.
The face is a part of the head that is home to many of your sensory organs. The eyes allow you to see, the ears allow you to hear, the nose and the mouth allow you to smell, taste, and breathe, and the skin of the face is able to sense touch.
Your head consists of the brain and several parts that allow you to see, hear, smell, taste, and move.
There are many types of bones in the human body. The largest and most obvious are the long bones such as the femur in the thigh or the humerus in the upper arm. These are surrounded by hard, compact bone, and covered by a soft, rubbery layer of bone cells.
The smallest bones are the tiny crystals of mineral salts that form the hard outer shells of our cells.
Bone is a type of hard tissue that gives our bodies structure and shape. It gives us support and protects our inner organs. There are two main types of bone tissue: compact and spongy.
Compact bone is located in areas of the body that need to be strong, like the skull. Spongy bone is found in areas that need to be lighter, like the wing of a bird or the leg of a crane. Both kinds of bone develop from special cells called osteoblasts, which produce the minerals that make up our bones.
The human body contains hundreds of muscles, which are in your arms, legs, and all over your body. They control how you move. Muscles store energy and release it when needed.
They contract and relax in a rhythmic motion. Muscles consist of long, thin cells called fibers. The cells contain many myoglobin molecules that contain oxygen for use when the muscle needs it. Muscle cells also contain many mitochondria to provide fuel for the entire cell.
The Circulatory System Transports Energy and Nutrients
The blood carries out critical functions that keep us alive. It transports oxygen, nutrients, hormones, and other important substances to all parts of our body. It removes waste and other harmful by-products.
The blood also clotting factors to stop bleeding when we get cuts or wounds.
The circulatory system consists of blood and the heart. Blood is mostly water, but contains nutrients and oxygen that the tissues need to survive. It is red in color because it contains a substance called hemoglobin.
The heart is a long organ that pumps the blood through the body with each beat. The blood vessels and the blood itself are also part of the circulatory system.
The respiratory system takes in oxygen and gets rid of carbon dioxide. The process begins when you inhale (breathe in). The diaphragm, a muscle under the lungs, and the chest wall muscles relax, which causes the chest to suck in.
Air then rushes into your chest. Inhaling is active breathing, because it uses muscle contractions.
Breathing also has a passive part. The relaxation of the chest wall and the diaphragm creates a negative pressure in the chest. This suction draws air into the lungs.
Breathing out is a passive process; it involves relaxing the muscles that open the airways, and the air simply comes rushing out.
The respiratory system consists of the nose, throat, windpipe (trachea), and lungs. Air enters through the nostrils, or nares, and flows down two airways called the left and right main stem bronchi. These tubes divide into branches in the chest and lungs.
The smallest air tubes, called bronchioles, end in clusters of air cells, called alveoli. The alveoli are dotted over the surface of the lungs like pores. They are the smallest units of the lungs.
Just as a dust filter keeps dust out of a vacuum, the nose filters foreign objects and mucus from entering the body’s internal environment. Air is warmed and moistened as it is drawn in and passes through the nasal cavity. Hairlike fibers called cilia line the nose and move the mucus out of the nose through the nasal cavity and along the throat to the stomach to be eliminated.
The Digestive System Extracts Energy from Food
Food is more than and energy source for our body. It also contains important building blocks, such as proteins, minerals, and vitamins, which are necessary for cell growth and repair. The digestive system, which includes the mouth, esophagus, stomach, small and large intestines, rectum, and pancreas, breaks down food into a form that the body can use.
The mouth contains several structures that break down food and prepare it for swallowing. The tongue moves food around the mouth so that it can be chewed by the teeth. Saliva is secreted in the mouth.
Its main purpose is to begin the chemical breakdown of starch into smaller units.
When you chew your food, you are preparing it for swallowing. Food is mixed with saliva and broken down even more. The tongue pushes the food toward the throat by thrusting it against the roof of the mouth.
This is called the upper esophageal sphincter. The lower esophageal sphincter keeps food in the stomach until it has been thoroughly chewed and mixed with digestive juices.
The stomach churns and mixes food with digestive juices to break it down further. It does this because the food would simply be too large to digest if it were not broken down first. The peristaltic waves that squirm the food through the intestines also push it into the beginning of the small intestine.
The small intestine is a long, thin tube that takes up most of the digestive system. It is here that most of the nutrients in food are absorbed. It is divided into three sections: the duodenum, the jejunum, and the ileum.
The small intestine joins the large intestine at a point called the cecum. The large intestine is also folded many times upon itself. It is divided into two parts: the ascending colon and the transverse colon. These parts join to form a pouch called the vermiform appendix. The large intestine then turns back and forth upon itself to form the descending colon. It then culminates in the rectum, where feces are stored before they leave the body.
The large intestine is mainly involved in the absorption of water. However, before nutrients can be absorbed, waste material and water must be removed. The colon does this by moving dry, solid waste material through itself to the rectum and eventually passing it out of the body.
The liver is the largest organ in the body and it has many functions. Along with producing bile which breaks down fat, it manufactures proteins for blood plasma, stores glucose for energy emergencies, and makes albumin which is a liquid that helps keep the blood from losing its volume.
Respiration
Respiration is the act of taking oxygen into the body and releasing carbon dioxide. The organs of respiration are the lungs and the respiratory system.
The windpipe divides into two branches called bronchi, which in turn divide into smaller and smaller branches.
The lungs are located in the chest. Inside the lungs are tiny air sacs called alveoli. It is here that gas exchange takes place between the air in the alveoli and the blood in the capillaries that surround them.
Air enters the body when you inhale and leaves by way of the windpipe when you exhale.
Excretion
The organs of excretion are the urinary system and the digestive system. The urinary system removes waste material from the body by converting it into urine, which is then excreted from the body. The liver and the pancreas also excrete wastes into the bile and the digestive tract, respectively.
The form that this excretion takes depends upon what is being excreted. Food is excreted in the form of feces, while certain waste products are excreted in the form of carbon dioxide and water (as urine) or bile.
Sight
The organs of sight are the eyes and the visual parts of the brain. Light enters the eye and strikes the retina, which translates it into a nerve impulse. This travels to the visual parts of the brain, where it is interpreted and turned into an image.
The eye is made up of several parts. Light enters the eye through the cornea, and is bent toward the lens by the cornea. The lens focuses the light on the retina, which contains special cells (rods and cones) that translate the light vibrations into nerve impulses.
These are sent to the brain through the optic nerve.
Cells of the retina form a dense spot called the macula which enables you to see fine details clearly. The retina also contains the optic disk, which is the point where the nerve fibers from the rods and cones join together. This point corresponds with the center of vision.
Surrounding it are blood vessels.
Hearing
Hearing is the ability to perceive sound due to vibrations in the air around us. The organs of hearing are the ears and the auditory parts of the brain.
Sound vibrations are transmitted to the ear through the air, making them fluid-filled tubes. The sound vibrations set the ear drum (tympanic membrane) vibrating. These vibrations are transferred through three small bones called the ossicles into the inner part of the ear.
The auditory parts of the brain turn the sound vibrations into nerve impulses which travel to the brain where they are interpreted as sound.
Taste
Taste is the ability to perceive what something is by its taste. The organs of taste are the tongue and parts of the mouth.
There are four kinds of taste sensations: sweet, sour, salty, and bitter. The tongue is a rough organ covered with many small projections called papillae. These contain the sensors that tell us if something we eat or drink is tasteful or not.
Smell
Smell is the ability to perceive odors due to chemical particles in the air. The organs of smell are the nose and parts of the brain such as the olfactory bulbs.
There are many chemicals floating around in the air which, when combined, produce different smells. The nose is shaped like a funnel to keep all of these smells focused on the olfactory bulbs in the brain. Inside the nose, there are also small hairs that filter out dust and other large particles that might be floating through the air.
Touch
Touch is the ability to perceive texture due to pressure against parts of the skin. The organs of touch are the skin and parts of the brain.
In order for us to feel something, two things must happen. First, the sense of touch must be stimulated by pressure against parts of the skin. Second, this sensory information must be carried to the brain and interpreted.
The areas of most intense sensitivity on the body are called ‘tender spots’ or ‘touch spots’. All people have these spots, but not all of them are the same. For instance, if you press firmly on the area right below your cheekbone and in front of your ear, it is very tender for most people. This spot is called ‘Gannoruva’s Spot’, after the doctor who first identified it. If you press firmly on this spot, your whole head will begin to tingle.
The brain can interpret sensations by associating them with past experiences. For example, when you burn your finger, the heat sensation and the pattern of skin reddening are interpreted by the brain as ‘burning’.
Sight
Sight is the ability to perceive colors due to light and visual images due to objects. The organs of sight are the eyes.
The eye contains a lens which focuses images on the retina. The retina is a layer of cells sensitive to light. The visual image is distributed to the brain through the optic nerve.
Sources & references used in this article:
Umbilical dysmorphology. The importance of contemplating the belly button by JM Friedman – Clinical genetics, 1985 – Wiley Online Library
Comparing Body-Part Size and Shape Constructions in Village Sign Languages with Cospeech Gesture by A Tano, V Nyst – Sign Language Studies, 2018 – JSTOR
Identifying a body shape by K Jones – US Patent App. 12/316,580, 2010 – Google Patents
