This course is an introduction to general fundamentals and principles of hormones and endocrine glands in relation to their clinical significance for medical laboratory sciences students. It is a building block and a complementary course to the clinical biochemistry1 and 2 in the third year level. Topics include hormone definitions, mechanisms of action, hormonal function, endocrine glands. Topics also cover the regulation of the main analytes of clinical significance, such as sodium, potassium, calcium, magnesium, glucose, and others.