Are nails bones Are nails bones?

Nails are not bones!

Nails are derivatives of ** and are made by thickening the dermis. The dermis of the nail is the nail bed, the superficial germinal layer at the root of the nail is the nail growth point, and the ** wrinkle wall around the root of the nail and its side edge is called the nail corridor.

The nail bed is the attachment point where the nail grows, and the nail adheres to the nail bed, growing from the root outward, from the bottom up, and it takes about 4 weeks to grow full. If the nail is damaged, it affects the nail bed and the nail cannot grow.

Briefly describe the structure and composition of the nail.

The nail is equivalent to the stratum corneum, but it is not a thin plate of hard keratin, and the keratinocytes are tightly packed together.

Compared with the stratum corneum, the lipid content of the nail is less, about the, but the sulfur content accounts for more than 3%, which is more than the stratum corneum.

Although the shape of the nail is different from that of the hair, the amino acid composition of the nail is similar to that of the hair because of the same keratin protein.

Nails are formed from nail matrix cells. Nail blasts grow on top of the nail bed and along the nail bed in the direction of the fingertips. This is the phenomenon of nail growth.

The nail bed replenishes the nail moisture and, together with the nail profile, plays an adjustment role that makes the nail neatly elongate in a certain direction. The extension of the nail away from the nail bed is called the free margin of nail. Since it is difficult to replenish water, this part of the water is reduced, brittle and easily damaged.

The milky white part of the nail that has a half-moon shape at the base is called the nail half-moon (lunua). Here the nail is not fully formed and has not been sufficiently keratinized. The nail half-moon is somewhat soft compared to the rest of the nail and does not fully connect with the underneath.

The ** around the edge of the nail is called the nail profile, which is the posterior nail profile at the base of the nail and the lateral nail profile on both sides.

The epithelium that covers the nail is called the nail epithelium and plays a role in protecting the immature nail. Without nail epithelium, nails are susceptible to injury and sometimes cause new nails to be unusually shaped.

No, the composition of nails is protein, which is a derivative of our **. It is made of keratinization.

Nails are the last of our finger bones.

I've told you all, what else am I going to say?

The composition and growth of nails and bones are completely different, so it is not difficult for us to come to a conclusion: nails are not bones, their composition is similar to hair, protein, keratin and calcium, and the maintenance method is the same as hair care, moisture and nutrition moisturizing have to go hand in hand, it is recommended to use moisturizer, hand cream or cream containing vitamin E to massage every day, at the same time, female compatriots who like the beautiful style of French nails or crystal nails need to pay attention to the fact that long nails are inconvenient in addition to taking things, The glue used to hold artificial nails together contains chemical ingredients that can make your existing nails more brittle and brittle, so take good care of them.

It's not that human nails are the same as hair, and they need roots underneath. The root of the nail is called methyl, and it is buried in the ** of the finger. The vitality of methyl cells is very strong, it can constantly produce new cells, and the old cells continue to die and become keratin, forming nail roots, and the new nail roots continue to push the old nail roots outward, forming nails.

The nail acts as a support or baffle, protecting the finger from damage. But don't let it grow too long, because too long nails will not only contain dirt and dirt, become a source of disease transmission, but also easily break and even hurt your fingers.

No, but nails and bones are made of calcium. Just like vitamin D and sex hormones, they are all sterols.

Not counting.

1. Nail tip - also called the front edge of the nail, is the part of the nail surface that separates from the nail bed, because there is no support below, lack of moisture and oil, so it is easy to crack.

2. The nail body - also called (nail cover), generally known as the "nail" part, is composed of the nail mother located at the root of the branch nail.

3. Nail groove - and the outer frame of the nail, if it is too dry, it is easy to grow flesh thorns.

4. Nail arc shadow - also called half-moon area, is located at the root of the nail white like a half-moon shape.

5. Nail bed - the tissue that supports the nail **, is closely connected to the nail, supplies the nail water, and is densely covered with blood vessels, and the nail is pink.

6. Nail root - located at the root of the nail, in front of the methyl group, extremely thin and soft, its function is similar to the rhizome of crops.

7. The epidermis of the nail bed - that is, the "soft skin", its function is to protect the soft nails.

8. Methyl group - located at the root of the nail, containing capillaries, lymphatic vessels and nerves. Its effect is similar to that of soil, the source of nail growth, and when the methyl group is damaged, the nail stops growing or malformed.

9. Free edge - also called (smile line) The free edge line between the nail body and the nail bed.

10. Finger core - a thin layer under the tip of the nail**.

Certainly not 99% of calcium in bones and teeth.

Not bones.

The nail is a flattened nail-like structure on the back of the finger (toe) of humans and apes, which belongs to connective tissue. It is a deformation of the claw, also known as the flat claw, and its main component is keratin. Homologous to the claw, the claw plantar retracts, and the claw plate forms a rectangular sheet, which is the product of epidermal keratinization at the end of the finger (toe) and plays a role in protecting the end of the finger (toe).

Species of the suborder Primate apes and primates have nails. Some species of the suborder Protomonkey do not have nails, and some species only have fingernails at the ends of some fingers, such as bee monkeys (slow loris) with claws on the second toe and nails on the rest, while finger monkeys only have nails on the first finger (toe) and the rest of the fingers (toes) are claws. The main component of rhino horn and nails is keratin.

Condition analysis buried in the void:

Hello! The nail does not belong to the bone, nor does it belong to the **, it is just an accessory organ and belongs to the connective tissue.

Guidance: Generally, if there is a problem with the nail itself, it belongs to the ** bending family. If it is a lesion around the nails, it falls under the scope of surgery.