Integumentary system's main functions are below :
The integumentary system has lots of different functions, it:
Protects the body’s internal organs
Protects the body against bacteria
Protects the body from dehydration
Protects the body against sunburns
Stores water, fat, and vitamin D
hair care tips
Caring for your hair and some tips
The most important thing is to keep their hair clean. Some people wash their hair every day, but others do it once or twice a week. That depends on the type of hair you have and where activities in which you are involved, such as exercise or swim.
When you wash your hair, use a mild shampoo and lukewarm water. Apply shampoo and massage with the fingertips, rather than nails, to make foam. You can use a conditioner or a shampoo that already contains. The conditioner helps untangle the hair and leave it soft and silky. But according to the type of hair, it may also be able to crush a lot and leave it oily. Rinse your hair with plenty of clean water. Secale gently with a towel and use a wide-tooth comb to untangle.
Try either your hair, either when wet or dry, brushing or combing carefully. Do not try pulling of desenredarte knots strong and they do not use a pony tail or braids too tight. You can irritate the scalp. And if you're using rizadores or hair dryer, be careful and ask an adult to help, if needed. If not careful, you can burn.
Here we give you a tip to showcase a beautiful hair: Follow a healthy diet. It sounds weird, but it is not. A diet rich in nutrients helps your body to look beautiful from the inside out!
The most important thing is to keep their hair clean. Some people wash their hair every day, but others do it once or twice a week. That depends on the type of hair you have and where activities in which you are involved, such as exercise or swim.
When you wash your hair, use a mild shampoo and lukewarm water. Apply shampoo and massage with the fingertips, rather than nails, to make foam. You can use a conditioner or a shampoo that already contains. The conditioner helps untangle the hair and leave it soft and silky. But according to the type of hair, it may also be able to crush a lot and leave it oily. Rinse your hair with plenty of clean water. Secale gently with a towel and use a wide-tooth comb to untangle.
Try either your hair, either when wet or dry, brushing or combing carefully. Do not try pulling of desenredarte knots strong and they do not use a pony tail or braids too tight. You can irritate the scalp. And if you're using rizadores or hair dryer, be careful and ask an adult to help, if needed. If not careful, you can burn.
Here we give you a tip to showcase a beautiful hair: Follow a healthy diet. It sounds weird, but it is not. A diet rich in nutrients helps your body to look beautiful from the inside out!
The variety of hair color
What kind of hair you have? ¿Black and wavy?, Blond and Lazio? Or some other combination? The color of the hair is given melanin, the substance that gives color to the skin. The more clear is the hair, you have less melanin. A person with black or brown hair has a lot more melanin than a hair blond or red. As people get older, decreases the amount of melanin and therefore begin to exit the gray hairs.
Usually, the skin color of a person is in agreement with the color of his hair. For example, most of the blond have light skin, while people with darker skin is brown or black hair. And do not forget the genes (the genes inherited from your parents): usually the color of the hair is determined by the color of the hair of one or both parents.
Hair follicles play a key role in determining the type of hair. Some hair follicles are structured in a way that produces wavy hair, while others generate hair Lazio. Follicles also determine whether your hair is thick or thin.
Usually, the skin color of a person is in agreement with the color of his hair. For example, most of the blond have light skin, while people with darker skin is brown or black hair. And do not forget the genes (the genes inherited from your parents): usually the color of the hair is determined by the color of the hair of one or both parents.
Hair follicles play a key role in determining the type of hair. Some hair follicles are structured in a way that produces wavy hair, while others generate hair Lazio. Follicles also determine whether your hair is thick or thin.
Where does your hair?
The hair always grows through the skin in the same way, no matter where it comes out (of your head, arm or ankle). Start at the root capillaries beneath the skin, where cells are grouped to form keratin (the protein from being formed nails). The root is within a follicle, which is a kind of small tube into the skin.
The hair grows from the root, leaves the follicle and goes through the skin, making it visible. The small blood vessels that are at the base of each follicle feed the roots of the hair to permit their growth. But once the hair emerge from the surface of the skin, the cells that form it are no longer alive. The cells of one of the hairs that you see in your body are dead. That's why when you cut your hair does not hurt us.
Virtually every hair follicle is connected to a Sebaceous gland. These sebaceous glands produce a substance, tallow, which gives the skin a shiny appearance and protects making it water resistant. Sometimes, for example during puberty, these glands can produce too much sebum (fat), which causes the hair of a person is oily. If that's the case, it is time to wash your hair!
What took the wind!
You have more than 100,000 hairs on your scalp, but every day many of them you fall. Every day, you lose about 50 to 100 hairs. This happens while you wash your hair, you comb, brush or just while you're immobile. But do not worry, constantly grow new hair to replace those that are going to fall.
Every hair on your scalp grows for about 2 to 6 years. Then, resting for a few months and finally falls. It replaced a hair again, it starts to grow in the hair follicle. This cycle of growth, rest, fall and replacement to maintain an adequate amount of hair on your head.
The hair grows from the root, leaves the follicle and goes through the skin, making it visible. The small blood vessels that are at the base of each follicle feed the roots of the hair to permit their growth. But once the hair emerge from the surface of the skin, the cells that form it are no longer alive. The cells of one of the hairs that you see in your body are dead. That's why when you cut your hair does not hurt us.
Virtually every hair follicle is connected to a Sebaceous gland. These sebaceous glands produce a substance, tallow, which gives the skin a shiny appearance and protects making it water resistant. Sometimes, for example during puberty, these glands can produce too much sebum (fat), which causes the hair of a person is oily. If that's the case, it is time to wash your hair!
What took the wind!
You have more than 100,000 hairs on your scalp, but every day many of them you fall. Every day, you lose about 50 to 100 hairs. This happens while you wash your hair, you comb, brush or just while you're immobile. But do not worry, constantly grow new hair to replace those that are going to fall.
Every hair on your scalp grows for about 2 to 6 years. Then, resting for a few months and finally falls. It replaced a hair again, it starts to grow in the hair follicle. This cycle of growth, rest, fall and replacement to maintain an adequate amount of hair on your head.
hairs biology
The "hair" is not just that you have hair on the head. You have "hair" (and hair) in almost all parts of the body. (The places where you have no hair are the lips, the palms and soles).
Most of the hair that you have in your body is easy to see, such as the eyebrows, head, arms or legs. But the hair you have on, for example, the cheeks of the face is almost invisible. Depending on the location, hair fulfills different functions. The hair that you have in your head keeps the body heat of this and gives some protection against your skull blows. Eyelashes protect your eyes by reducing the amount of light and dust that can penetrate them; and eyebrows protect the eyes of sweat that can drip on your forehead.
Most of the hair that you have in your body is easy to see, such as the eyebrows, head, arms or legs. But the hair you have on, for example, the cheeks of the face is almost invisible. Depending on the location, hair fulfills different functions. The hair that you have in your head keeps the body heat of this and gives some protection against your skull blows. Eyelashes protect your eyes by reducing the amount of light and dust that can penetrate them; and eyebrows protect the eyes of sweat that can drip on your forehead.
Integument
The Integumente are an integral part of the plant seeds of seed plants. There are Hüllschichten which encircle the Nucellus. After fertilization, the Integumente to Testa.
They leave a small opening, the Mikropyle freely through which the scar on the subject with the pollen in the pollen tube fertilization hindurchwächst.
They leave a small opening, the Mikropyle freely through which the scar on the subject with the pollen in the pollen tube fertilization hindurchwächst.
NAILS
nThese plates of highly keratinized cells are analogous to, but harder than, the stratum corneum.
A. Nail Development: The formation of the nails is similar to that of hair, but involves produc ing plates rather than cylinders. At the end of the third month of embryonic development, a narrow plate of epidermis on the dorsal surface of the terminal phalanges invades the underlying dermis of each finger and toe. This invasion continues proximally, forming a furrow called the nail groove. Epithelial cells beneath the groove proliferate to form the nail matrix, whose composition and function are similar to those of the hair's germinal matrix. Proliferation in the nail matrix pushes the upper cells toward the surface. These cells differentiate, becoming highly keratinized to form the nail plate. The plate is gradually pushed out of the groove by further cell proliferation and differentiation in the nail matrix. The growing plate slides distally on the dorsal surface of the digit. The epidermis over which it slides becomes the nail bed.
B. Nail Complex Structure: The nail plate (or nail) consists of 2 parts: the nail body (the visible part of the nail) and the nail root--(the part hidden in the nail groove). The nail and its supporting structure are surrounded by papillary dermis. The nail matrix is a thickened region of epidermis containing proliferating cells in the layer that directly contacts the dermis, and keratinizing cells between this basal layer and the nail plate. The nail matrix surrounds the root and extends beyond the nail groove. The nail bed lies beneath the nail body, distal to the nail matrix. It consists of only the deeper epidermal strata, for which the nail serves as a stratum corneum. The eponychium (or cuticle) is a thick keratinized layer extending from the upper surface of the nail groove over the most proximal part of the nail body. The hyponychium is a local thickening of the stratum corneum underlying the free (distal) end of the tail. The lunula is the whitish, opaque, crescent-shaped region on the proximal nail body, adjacent to the nail groove. Its distal border corresponds roughly to the underlying nail matrix
A. Nail Development: The formation of the nails is similar to that of hair, but involves produc ing plates rather than cylinders. At the end of the third month of embryonic development, a narrow plate of epidermis on the dorsal surface of the terminal phalanges invades the underlying dermis of each finger and toe. This invasion continues proximally, forming a furrow called the nail groove. Epithelial cells beneath the groove proliferate to form the nail matrix, whose composition and function are similar to those of the hair's germinal matrix. Proliferation in the nail matrix pushes the upper cells toward the surface. These cells differentiate, becoming highly keratinized to form the nail plate. The plate is gradually pushed out of the groove by further cell proliferation and differentiation in the nail matrix. The growing plate slides distally on the dorsal surface of the digit. The epidermis over which it slides becomes the nail bed.
B. Nail Complex Structure: The nail plate (or nail) consists of 2 parts: the nail body (the visible part of the nail) and the nail root--(the part hidden in the nail groove). The nail and its supporting structure are surrounded by papillary dermis. The nail matrix is a thickened region of epidermis containing proliferating cells in the layer that directly contacts the dermis, and keratinizing cells between this basal layer and the nail plate. The nail matrix surrounds the root and extends beyond the nail groove. The nail bed lies beneath the nail body, distal to the nail matrix. It consists of only the deeper epidermal strata, for which the nail serves as a stratum corneum. The eponychium (or cuticle) is a thick keratinized layer extending from the upper surface of the nail groove over the most proximal part of the nail body. The hyponychium is a local thickening of the stratum corneum underlying the free (distal) end of the tail. The lunula is the whitish, opaque, crescent-shaped region on the proximal nail body, adjacent to the nail groove. Its distal border corresponds roughly to the underlying nail matrix
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