Femur and Temporal bone of the skull are the strongest bones of the human body. However,
tooth enamel
is the hardest and most highly mineralized substance in the human body. It’s a tissue and not a bone. This tissue has high mineral content which makes it hardest substance.
Which is the hardest tissue of human body?
The
enamel
covering of our teeth also withstands extreme acid-base fluctuations, some of which come from various populations of bacteria that grow in our mouths. Overall, enamel is by far the toughest material in our bodies, and scientists have been examining its structure and composition for decades.
Which is the hardest part in human body?
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.
Which is the strongest part of human body?
The heart has the ability to beat over 3 billion times in a person’s life. The strongest muscle based on its weight is
the masseter
. With all muscles of the jaw working together it can close the teeth with a force as great as 55 pounds (25 kilograms) on the incisors or 200 pounds (90.7 kilograms) on the molars.
Are teeth stronger than diamond?
According to the Mohs Hardness Scale, tooth enamel earns a 5. That means it’s about as hard, or harder, than steel. For reference,
diamonds are the strongest substance on earth
, ranking 10 on the Mohs scale.
Which cell is the longest cell in human body?
Complete Answer:
– In the human body,
the nerve cell
is the longest cell. Nerve cells are also called neurons that are found in the nervous system. They can be up to 3 feet long.
What is the first hardest tissue in human body?
Enamel
, in anatomy, the hardest tissue of the body, covering part or all of the crown of the tooth in mammals. Enamel, when mature, consists predominantly of apatite crystals containing calcium and phosphate. Enamel is not living and contains no nerves.
Are teeth a bone?
Teeth are not bones
. Yes, both are white in color and they do indeed store calcium, but that’s where their similarities end.
What is the weakest muscle in your body?
| Stapedius | TA2 2103 | FMA 49027 | Anatomical terms of muscle |
|---|
What is the weakest bone in your body?
Clavicle
: Clavicle, or collar bone, is the body’s softest and weakest bone. It is easy to break since it is a thin bone that runs horizontally between your breastbone and shoulder blade.
What is the 2nd strongest muscle in the human body?
- Heart. The heart, which consists of cardiac muscle, is said to be the hardest working muscle in the body. …
- Masseter. …
- Soleus. …
- Gluteus Maximus. …
- Uterus.
Why are teeth alive?
As the pulp of a tooth becomes inflamed, the blood vessels get choked by pressure and cannot survive. Since your teeth are alive,
they have the ability to heal themselves
, just like any other tissue in your body. Saliva contains enzymes that help teeth heal. It is inhibited by sugar and bacteria.
What is Earth’s hardest material?
(PhysOrg.com) — Currently,
diamond
is regarded to be the hardest known material in the world. But by considering large compressive pressures under indenters, scientists have calculated that a material called wurtzite boron nitride (w-BN) has a greater indentation strength than diamond.
What is the strongest thing in this world?
- Diamond. Unmatched in its ability to resist being scratched, this much-loved gemstone ranks the highest in terms of hardness. …
- Graphene. …
- Spider silk. …
- Carbon/carbon composite. …
- Silicon carbide. …
- Nickel-based super-alloys.
What is the smallest cell in human body?
The Cerebellum’s Granule Cell
is the smallest cell in the human body that is between 4 micrometers to 4.5 micrometers long. The RBC ‘s size also found roughly 5 micrometers. The largest cell is ovum in the human body. The ovum also called egg cell is the reproductive cell in the female body.
Which is the smallest cell?
As of today,
the mycoplasmas
are thought to be the smallest living cells in the biological world (Fig. 1). They have a minimal size of approximately 0.2 micrometers, which makes them smaller than some of the poxviruses.
