The document discusses the components and principles of school health services. It notes that school health services aim to promote, protect, and maintain the health of school children. The key components include providing a wholesome school environment; maintaining personal hygiene; nutrition programs; physical activity; health education; immunization; health screening; first aid; and treatment and follow-up services. It also discusses establishing a school health team to oversee and implement various health programs and services in schools. The overall goal is to address the health needs of students and reduce morbidity and mortality among school-aged children.