Agricultural machinery HS code lookups

List of contents of this article:

• 1, Key points of the care of the early childhood sports system
• 2 , Composition and significance of preschool children's system
• 3, How to protect the health of preschool children's circulatory system
• 4 、Agricultural machinery HS code lookups' title='How to promote the development of preschool children's sports system?' > How to promote the development of preschool children's exercise system?
• 5, The characteristics of the children's digestive system are
• 6, Five opportunities for the growth of children's vestibular system, parents must pay attention to

Key points of the care of the early childhood sports system

1. The key points of the care of the preschool children's sports system are to provide comprehensive physical activities to promote the comprehensive improvement of children's physical development and motor ability. Through diversified physical activities, comprehensively develop all aspects of children's body, including muscle strength, flexibility, coordination, endurance, etc.

2. Key points of care: pay attention to the burden of children's activities, and consider speed and rest.

3. Briefly describe the hygiene requirements of preschool children's exercise system as follows: First, it is necessary to cultivate children's various correct postures; preschool children's bones are easy to deform, and if children's sitting, standing and walking postures are not standard, it is easy to cause problems in the later stage of children's physical development.

4. The key points of conservation are based on the characteristics of the children's exercise system, so they can have a targeted memory. Cultivate children's various correct postures to prevent deformities of the spine and thorax. ( Toddlers should pay attention to the ten words: straight head, straight body, chest, open arms, and feet.) Organize outdoor sports and physical exercise reasonably.

The composition and significance of preschool children's system

1. The development of various organ systems in infants and young children shows the characteristics of imbalance, and their nervous system is the first to mature; and the reproductive system does not accelerate its development until the end of the child. When the reproductive system matures, that is, sexual maturity, it will make people feel that the child has suddenly grown up and entered puberty.

2. Pharynx: the common channel of breathing and digestion (3) Larynx: it is a gas channel and a vocal organ (pay attention to the role of cartilage) (4) Trachea and bronchus: belong to the lower respiratory tract, and the mucus secreted is beneficial bacteria and antiviral effects. Lung: the main place for gas exchange.

3. The significance is as follows: promote children's physical and mental health development. Cultivate children's correct attitude towards society, the collective, others and themselves.Preschool education and its quality play an important role in family life, national economic development and social order stability.

How to protect the health of preschool children's circulatory system

Live regularly, alternating movement and quiet. Avoid emotional tension or sudden nerve stimulation, so as not to affect the normal function of the heart and blood vessels; children's clothes and shoes and socks should not be too small and too tight, so as not to affect heart activity and blood circulation; children should have normal sleep and proper rest every day to protect the heart.

Platelets - promote hemostasis and accelerate blood clotting (II) Structure and main functions of the heart (III) Classification of blood vessels: arterial blood vessels, venous blood vessels, capillaries. ( IV) Blood circulation: body circulation, pulmonary circulation.Lymphatic system: lymphatic vessels, lymphatic fluid, lymph nodes, tonsils, spleen.

Reasonably arrange meals. Children's stomach capacity is relatively small, and the liver reserves do not have much glycogen. In addition, children are lively and prone to hunger. Therefore, the number of meals of children should be increased accordingly: at the age of 1-2, they can eat 5-6 times a day, and at the age of 2-3, they can eat 4-5 times, and each meal is 3- 5 hours.

Under normal circumstances, the health care points of children's respiratory system are to drink more water, wash the nose, and keep the feet warm. The specific content is as follows: Drink more water: The respiratory system includes the nose, pharynx, larynx, trachea, etc., which is a general term for the organs of gas exchange between the human body and the outside air.

Pay attention to protect your throat. Children's vocal range is narrow, so it is not appropriate to sing adult songs; drink more water when you have a cold; don't eat too much cold food in summer or after activities, etc.Help children develop the habit of breathing through the nose, do not breathe through the mouth, and give full play to the protective role of the nasal cavity. Be careful when eating, don't talk and laugh loudly, and prevent food from invading the trachea.

How to promote the development of preschool children's exercise system?

Organize rich sports activities. Teachers can provide basic movement exercises, such as walking, running, jumping, balancing, drilling, climbing, throwing, etc., and can also lead children to do body postures and gymnastics exercises, such as walking, sitting and standing postures.

Provide diversified exercise opportunities: Teachers should provide rich and diverse exercise opportunities for preschool children, including indoor and outdoor activities. This can include free games, sports classes, outdoor activities and gymnastics, etc. A variety of exercise experiences can help develop children's muscle control, coordination and movement skills.

Provide a diverse sports environment: Teachers can create a diverse sports environment for young children, including indoor and outdoor places. Provide various sports equipment and toys, such as balls, skipping ropes, slides, etc., to encourage children to actively participate in various sports activities.

Briefly describe the strategies and methods of early childhood teachers to promote the development of preschool children's athletic ability as follows: Provide a diversified sports environment and equipment: Kindergarten teachers can provide a variety of sports environments and various sports equipment, such as balls, skipping ropes, slides, etc., to provide children with a diversified sports experience, so as to Stimulate their interest and enthusiasm in sports.

The characteristics of the children's digestive system

I) Characteristics of the children's digestive tract Oral: children'sThe oral mucosa is thin and tender, the blood vessels are abundant, the salivary glands are not developed enough, and the oral mucosa is dry and prone to damage and infection. The bottom of the mouth is shallow, unable to swallow all the secreted saliva in time, and physiological salivating (i.e. drooling) often occurs.

Features: The development of various nerve tissues such as digestive tract and elastic fibers in children is not fully developed, the peristalsis performance of the intestine is poor, and various digestive glands are not yet developed. The amount of digestive juice secreted is not only small, but also the content of digestive enzymes, gastric acid, etc. is also small.

Characteristics of children's digestive system: teeth are not fully developed, resulting in a large amount of food residue entering the esophagus, which is easy to cause indigestion. Secondly, children's intestinal tract is long, gastrointestinal peristalsis is slow, and the abdominal muscle driving force is not strong, which is easy to cause constipation, food accumulation, anorexia and other symptoms.

The consumption of preschool childrenThe chemical system has the following characteristics: incomplete gastrointestinal development: the gastrointestinal development of preschool children is not complete, especially the acidity and enzyme activity of the gastrointestinal tract are at low levels. The digestive function is relatively weak: the digestive function of preschool children is relatively weak, the secretion of digestive enzymes is low, and the digestive absorption ability is poor.

Characteristics of the digestive system of preschool children: strong absorption ability; poor digestive ability; poor intestinal position fixation.

Five opportunities for the growth of the child's vestibular system, parents must pay attention to

How does the vestibular system develop? From the perspective of growth and development, every child has five golden times of vestibular system growth.

InfantsThe early development of the pediatric vestibular has a great impact on children's sense of balance and concentration in the later stage, and also affects the sensory systems such as audio-visual, smell, taste and touch. Therefore, many parents will do some vestibular training in their children's infancy. The vestibular training is suitable for babies born one month after birth.

The vestibular system has nerve fibers connecting the emotional center, so vestibular stimulation can affect emotions, including various positive and negative emotions, such as excitement, tension, calmness, etc. The vestibular system plays the basic function of the brain, so for healthy adults, the vestibular system operates silently, making the person completely ignore its existence.

Parents must understand that caring is spiritual communication, not behavioral intervention. Excessive intervention will hinder the development of children's potential. Parents should chargeBelieve in children. Only by trusting children can they let go of their hands and feet to do what they think they like, and in such trust, children can do better.

Therefore, accurate operating procedures and comprehensive and in-depth analysis and explanation are very important for vestibular function evaluation.