The respiratory system includes a series of organs that inhale oxygen, discharge carbon dioxide, and complete gas exchange.

The professional ethics requirements of nursery teachers are the most basic requirements for nursery teachers, and everyone must abide by them.

Baby nurses are mainly engaged in the care, nursing and education of infants between 0 and 3 years old. With reference to national professional standards, the profession can be divided into three levels: elementary, intermediate, and advanced.

Infant development refers to the process of an orderly, continuous, phased, and gradual process from differentiation to complete psychological changes from the beginning of life, influenced by factors such as genetics, environment, and learning.

Mainly divided into two steps: side cut and routine cleaning of surgical wounds, side cut and cleaning and disinfection of surgically infected wounds

If symptoms of mastitis occur during breastfeeding, the mother should be reminded to go to the hospital in time.

Prepare hot water and towels, and ask mothers to wash their hands. Use warm towels to clean the breasts for the parturient.

When the tooth germ develops to a stage, it will break and be pushed to the surface of the gum, which is what we commonly call "horse tooth" or "die".

Breastfeeding newborns are fed with milk 8-12 times a day, with rhythmic sucking accompanied by swallowing sounds.