What part of the development of vitamin A deficiency in adolescents and children will it affect?

Lack of vitamin A

It can easily lead to night blindness.

and other eye diseases. There is a light-sensitive substance in the human retina - rhodopsin, and vitamin A is the main raw material of this photosensitive substance. Under normal circumstances, there is enough vitamin A in the human body to promote the regeneration of rhodopsin, so that people can also feel the weak light source in the dark and see the shape and color of objects.

However, if the human body is deficient in vitamin A, rhodopsin cannot produce photoreceptor cells, and the photoreceptor cells are gone, there will be a decrease in dark adaptability, and then it will be completely invisible, and "night blindness" will appear.

Vitamin A deficiency can also trigger the appearance of other symptoms. Vitamin A deficiency can also cause dryness, hyperplasia and keratinization of the epithelium of different tissues of the body, resulting in various symptoms, such as keratinization of sebaceous and sweat glands, dryness, hyperkeratosis of hair follicles, and follicular papules.

with hair loss.

Vitamin A deficiency can lead to weakened immune systems and stunted growth in children. In addition, vitamin A deficiency can also cause decreased appetite and susceptibility to infection, especially in children and the elderly, which can easily cause respiratory tract inflammation and death in severe cases.

Vitamins play an important role in children's growth Vitamins are a trendy substance that everyone talks about. Indeed, despite the fact that the members of this family are small, they play an indispensable role in the growth and development of children, and the so-called "life-sustaining elements" are this truth. Vitamins A, B, and C play an important role in growing taller in this family, and citrus fruits, carrots, and spinach are especially rich in daily foods.

Therefore, you must always pay attention to whether your child only likes to eat "meat" and not these important "vegetables and fruits". Foods that contribute to height.

It mainly affects the development of vision, the growth and development of the skeletal system, and even affects immune function, and further affects the overall growth retardation.

Vitamin A deficiency in adolescents and children will affect the growth and development of multiple systems, mainly affecting the development of vision, the growth and development of the skeletal system, and even affecting immune function, and further affecting the overall growth retardation.

Vitamin A deficiency can easily affect vision development and can cause night blindness and vision loss. Because vitamin A can promote the formation of photosensitive pigments in the eye, it has an anti-respiratory infection. It also helps to maintain normal immune system function, strong bones, and maintain the health of hair, teeth, gums, etc.

If it is lacking for a long time, it will also affect the sluggishness of long bone growth, and tooth hyperplasia and keratinization will occur at the same time. The clinical manifestations are backward in height, the enamel of the teeth is easy to peel off, and the luster of the teeth themselves is lost, and caries is easy to occur. It can also cause compression of brain and spinal cord tissue, leading to increased intracranial pressure and atrophy of spinal nerves.

In addition, it will be accompanied by immunocompromise, which is often clinically manifested as an increased incidence of infectious diseases of the digestive tract and respiratory tract, and it is easy to prolong and not heal. Vitamin A deficiency can also cause anemia, which exhibits symptoms similar to those of iron deficiency anemia.

Vitamin A deficiency in children and adolescents may affect the development of eyes, **, bones, reproductive function and so on. Vitamin A is a fat-soluble vitamin, which can maintain the normal development and function of the eyes. Vitamin A participates in the metabolism of **, maintains the physiological needs of **epidermal cells and hair, and once lacking, **roughness, hair loss, etc.

Vitamin A is also involved in bone growth and development, and once vitamin A deficiency occurs, it may affect the child's height growth. Vitamin A is an essential vitamin for the development of reproductive function, and deficiency may affect the development of reproductive function in children.

Vitamin A deficiency can affect the growth and development of many systems in the body, including vision development, skeletal system growth and development, immune function, etc., and may also lead to overall stunting.

a.Nyctalopia.

b.Beriberi.

c.Xerophthalmia.

d.**Rough change to rough, hair cherry blossoms fall out.

e.Scurvy nuclear Songbi.

f.Rickets.

Correct answer: ABCD

It's just that you will find that the child's eyes are relatively dry, easy to get myopia, and ** also looks quite dry, there may be some symptoms of peeling, and the bones are also relatively slow, it seems that the immune function is not very strong, often easy to get sick, and it is easy to cause some intestinal infections and respiratory infections.

The first is that the immune function will definitely decline, and the second is that the growth and development will be hindered, the eyes will be particularly dry, and it is easy to reverse** respiratory tract or indigestion, the longer the teeth are, the worse they are, and the ** no luster, the nails have become particularly fragile, which is a lack of vitamin A.

**Very dry, may have night blindness, keratosis pilaris, easy to respiratory tract infection, and slow body development.

Vitamin A deficiency may affect vision development, respiratory infections or weakened immune system, and can also cause fatigue and colds in children. The cause of vitamin A deficiency is congenital insufficiency, lack of nutrients, often give children some whole grains, do not feed nutrients.

Generally, there will be dry hair, **dryness, and then pimples and other symptoms will occur; Vitamin A deficiency can be caused by congenital deficiency, severe liver disease, or insufficient intake of foreign foods.

It will affect the child's bone development, affect the child's digestion, sometimes constipation, sometimes food accumulation, and may cause slow growth. It may be due to inadequate nutrient intake.

Vitamin A is a very important element of the human body, vitamin A has many benefits to the human body, and there is a basic standard for the amount of vitamin A in the human body. Once this amount is not enough, it will cause a certain effect on the person's body. Vitamin A deficiency can have some symptoms.

Here are some of the symptoms of vitamin A deficiency. <>

Vitamin A deficiency in children can lead to night blindness. The eyes will not adapt from bright places to dark places, and they will not be able to see clearly at night. Because one area that is affected by vitamin A deficiency is the eyes.

If vitamin A deficiency is severe, it can also lead to blindness. Vitamin A deficiency can also lead to dry eyes, which often feel dry. And the importance of the eyes is self-evident for children.

Therefore, vitamin A should not be deficient. <>

If the second child is deficient in vitamin A, it may cause the occurrence of dryness, roughness, and keratosis. In severe cases, pellagra can occur.

The third child fruit deficiency of vitamin A may lead to recurrent infections of the respiratory, digestive and urinary tract systems. Causes digestive and respiratory dysfunction. This is a more serious problem, if the child is deficient in vitamins for a long time, it will cause certain damage to his body's immunity, and various diseases may occur, affecting the growth and development of children.

It may also have an impact on your child's height.

Therefore, the problem of vitamin A deficiency in children is still relatively serious. Vitamin A has many roles. Vitamin A has a variety of physiological functions such as promoting growth and reproduction, maintaining the normal secretion of bones, epithelial tissue, vision and mucosal epithelium, and vitamin A and its analogues have the effect of preventing precancerous lesions.

Therefore, children need to take more vitamin A supplements. <>

Foods containing more vitamin A include poultry, animal liver, egg yolk, milk powder, red and yellow and dark green vegetables, fruits, etc., so you can eat more of these to supplement children's vitamin A

Babies who lack vitamin A will have reduced eyesight, and their eyes will feel very dry, and their growth and development will be very slow. It is easy to have brittle nails that are easy to break, and the growth of height is also very slow, and the immunity will also be reduced, so you should supplement your child with more vitamin A.

The baby's ** is very dry, and his immunity is very low, the corners of the eyes are inflamed, the body is underdeveloped, and the hair falls out, which is likely to cause the baby to suffer from night blindness.

Children who lack vitamin A will have very poor eyesight, and then there will be children's ** will be particularly dry and peely, and hair and nails are also particularly easy to fall off, and even make children's immunity particularly low, and will also make children suffer from some infectious diseases, and will make children's eyesight become particularly low.

Introduction: If children lack vitamin A, they will be dry, easy to desquamation, and easy to have a coarse gritty feeling, because after the lack of vitamin A, there will be dryness, hyperplasia and keratinization on different tissues of the human body; It will also affect children's impaired immune function will cause a decline in human immune function, and children are easy to get sick, and it is difficult to get sick after getting sick**; The most common symptoms are night blindness and dry eye, which can not see clearly at night, and the eyes have no luster, there is also a sense of pain and itching, and there will be photophobia in the later stage; It will also cause certain obstacles in the growth and development of children, and there will be symptoms such as easy tooth loss and low growth. The appearance of these symptoms can also seriously endanger the health of children.

Vitamin A plays a very important role in the growth and development of children, supplementing vitamin A can help the development of children's vision, but also can keep children delicate and shiny, but also can improve children's body resistance, and prevent children from digestive tract, respiratory tract and other organs of infection. Moreover, vitamin A supplementation is very good for children's bone growth, can also promote bone growth, and also plays a very important role in the development of baby's teeth.

If you want to prevent vitamin A deficiency in children, you must start from the diet, you can supplement some vitamin A daily, and then supplement nutrients to children, you must pay attention to balanced dietary nutrition, ensure that all kinds of food are consumed, and you can also supplement carotene, which can also promote the absorption of vitamin A.

Finally, in the process of children's growth, we must supplement the child with enough nutrients, and do not wait until the child is missing to supplement the child, which will have a great impact on the child's growth. When supplementing children with nutrients, it is also necessary to avoid excessive amounts, because supplementing excessive nutrients will also cause a certain burden on the child's body.

Clause.

1. Ocular symptoms, the earliest symptom is the weakening of dark adaptability, that is, the often said night blindness, the symptoms of small babies are often first discovered by the mother, the baby is quiet in the dark environment, blurred vision, and difficult to walk assigned.

The first ocular sign appears after a few weeks or months, and conjunctivitis sicca is characterized by dryness and loss of luster of the cornea and conjunctiva, feeling more itchy, and reduced tears. In severe cases, corneal ulcers, necrosis, perforation, etc., and even blindness.

Clause. 2. **Change, at the beginning, there is only **dry and itchy feeling, and when the desquamation is severe, it can lead to hair loss, nails are easy to break, dry, brittle and dull.

Clause. 3. Growth retardation.

Clause. Fourth, it is susceptible to some infectious diseases.

Clause. Fifth, some anemia will occur.

**It is relatively dry and rough, the adaptability of the eyes is also relatively poor, the growth and development rate is particularly slow, the immunity is relatively low, and it is easy to be infected with diseases, digestive tract infections, and respiratory tract infections.

The child's resistance is very low, the body is particularly prone to inflammation, ** is particularly dry, grows slowly, is particularly prone to anemia, vision will decline, and the eyes will be dry, these are all symptoms of vitamin A deficiency.

In the process of growth and development of the baby, parents are also very concerned about the nutrition of their children, and often give their children a lot of vitamins A, B, C, etc., because they all know that if the child lacks these vitamins, it will have a great impact on the body. Therefore, children need to supplement a lot of nutrients in the process of growth, in addition to calcium, iron and zinc these trace elements, and vitamin A is also very important for children's growth and development. Lack of vitamin A will make the child's ** become very rough, accompanied by desquamation, and then affect the vision of the child to become very blurry, resulting in frequent eye rubbing, and will also be prone to some eye diseases.

What are the symptoms of vitamin A deficiencyVitamin A plays a very important role in the growth and health of children, if children lack vitamin A, they will show dry eyes or blurred vision, and will also cause mouth ulcers, and teeth will also be more prone to tooth decay. Immune function will also decline, and some children will be prone to upper respiratory tract diseases, and some children will also have growth and development disorders. <>

Supplemental nutritionAt this time, we can give children more fruits containing vitamin A, which are also children's favorite food, such as bananas, cherries, carrots, pears, apples, etc., in addition to fruits, vegetables also contain a lot of vitamin A, such as Chinese cabbage, broccoli and spinach. In addition to dietary supplements, parents can also take their children to do more outdoor sports together, actively exercise to enhance their own resistance, and prevent the occurrence of some diseases. <>

Vitamin A can not only protect the baby's eyesight, but also promote some eye diseases, promote the growth and development of children, and allow bones to better absorb calcium. Therefore, when the baby is deficient in vitamin A, parents should take the child in time. If you need food supplements, you should eat more fruits and vegetables containing vitamin A, let your child exercise more and bask in the sun, and you can also give your child some animal liver or cod liver oil and dairy food.