KMHS Health Sciences This course focuses on the Anatomy and Physiology of various human body systems. Please use the menu to navigate through the chapters, glossaries and testing calendar. Functions of the Integumentary system 1. protection a) chemical factors in the skin: Sebum (or oil) from the sebaceous glands is slightly acidic, retarding bacterial colonization on the skin surface. Sweat from the sudoriferous glands is slightly hypertonic and can flush off most bacteria on the skin surface. Review: Introduction to the Cardiovascular System. Here is what we have learned from Introduction to the Cardiovascular System:. The cardiovascular system consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries.