Tooth enamel is the hardest part of the
Tooth enamel is the first line of defense your teeth have against plaque and cavities. It is the white, visible part of the tooth and it is also the hardest part of the human body.
Note: After enamel, the hardest substance in the human body is the bone. Bone is made up of calcium phosphate and collagen. Enamel is the second hardest substance in the whole world after the diamond. The light can pass through enamel as it is translucent.
Although paper-thin, the enamel that covers your teeth is much stronger than your bones. In fact, the only substance on earth that is stronger than enamel is diamond. Your Waco dentist Dr. Corbet Locke explains enamel's superior strength.
Tooth enamel is the hardiest and most highly mineralized material in the human body. It is a bone and not a tissue. The high mineral content of this tissue makes it the toughest material. Enamel is the outermost layer of the teeth and it contains the yellow dentine.
The longest living cells are 'Neurons'. Neurons are unique because of the fact that the mature cells oppose division to create new cells after development in the foetus.
The hardest substance in the body is tooth enamel. Tooth enamel is not a living tissue so it can't be naturally regenerated like the other tissues in our body.
An odd question; are teeth bones? Whilst your teeth and your bones may share some similarities, most notably in both being made of strong materials and sharing the same colour, they are not the same. Teeth are not made from bone. Bones are in a consistent cycle of being rebuilt and remade throughout your life.
The femur and temporal bones of the skull are the strongest bones in the human body, but the teeth, to be exact, are the hardest parts. The stiffness of this tissue is due to its high mineral content.
After diamonds, tooth enamel is the second hardest compound in the world. The hardest substance in the body is tooth enamel, your teeth's natural defence system. The only naturally occurring substance harder than tooth enamel is diamond.
The tongue, lips, and fingertips are the most touch- sensitive parts of the body, the trunk the least.
The best places to hit someone are the most sensitive parts of the body, including the eyes, ears, nose, and groin. But there are also many other spots where thick bones don't protect the body's super sensitive nerves and organs.
Intestine. Small intestine transplantation is the rarest type of solid organ transplant. Currently, approximately half are pediatric recipients.
The hardest working muscle is the heart. It pumps out 2 ounces (71 grams) of blood at every heartbeat. Daily the heart pumps at least 2,500 gallons (9,450 liters) of blood. The heart has the ability to beat over 3 billion times in a person's life.
While your heart is a vital organ, the brain (and the nervous system that attaches to the brain) make up the most critical organ system in the human body. The human nervous system is responsible for coordinating every movement and action your body makes.
The pterion is known as the weakest part of the skull. The anterior division of the middle meningeal artery runs underneath the pterion. Consequently, a traumatic blow to the pterion may rupture the middle meningeal artery causing an epidural haematoma.
Human skulls are harder than coconuts, with a Mohs hardness scale score of 5 vs. a coconut's score of 3.5. You would also find that coconuts and skulls are penetrable in different ways, as each will have different weaknesses.
So why won't teeth heal themselves? When compared to bones – which have plenty of blood vessels running through them – tooth enamel doesn't have any way to get fresh oxygen and nutrients. This means that once it's damaged, your tooth can't repair itself like other parts of your body can.
Summary: A researcher has found that blood vessels within bone marrow may progressively convert into bone with advancing age. A researcher at The University of Texas at Arlington has found that blood vessels within bone marrow may progressively convert into bone with advancing age.
Sharks do not have bones.
Their cartilaginous skeletons are much lighter than true bone and their large livers are full of low-density oils, both helping them to be buoyant.
Teeth are the ONLY body part that cannot repair themselves. Repairing means either regrowing what was lost or replacing it with scar tissue. Our teeth cannot do that. Our brain for example will not regrow damaged brain cells but can repair an area by laying down other scar-type tissue .
Actually, water pressure is generally stronger than air pressure. Think of it this way... if you had a plastic bottle filled with water and you poked a hole in the side, would water squirt out or would air squirt in? If air squirted in, then the air pressure would have to be higher.
In short, the answer is no. The statement 'diamond is an element' is misleading as carbon itself is an element. While a diamond is composed of 100% of carbon with no other elements involved, it is not an element but simply an allotrope of the element carbon.