Lactulose is sometimes used to treat or prevent certain conditions of the brain that are caused by liver failure, which can lead to confusion, problems with memory or thinking, behavior changes, tremors, feeling irritable, sleep problems, loss of coordination, and loss of consciousness.
Overview of the Cardiovascular system. Cardiovascular System consists of two components: The heart, which pumps blood. The blood vessels, through which blood flows. a.
Organ Systems. 1  1. Circulatory System: The main function of this system is to transport nutrients and gasses to cells and tissues throughout body.2  This is accomplished by the circulation of blood. 3  Cardiovascular: This system is comprised of the heart, blood, and blood vessels. Cardiovascular organs: heart, blood vessels, blood. 2  Lymphatic: This system is a vascular network of tubules and ducts that collect, filter, and return lymph to blood circulation. 3  As a component of the immune system, the lymphatic system produces and circulates immune cells called lymphocytes.