👉 The order of fluid in the body, known as the cephalic, cardiac, arterial, venous, and lymphatic sequences, describes the systematic pathway through which blood circulates. Initially, the cephalic order involves the sympathetic nervous system's stimulation, which triggers vasoconstriction and prepares the body for action. The cardiac order follows as the heart contracts, pumping blood into the arterial system. Arteries branch into smaller arterioles and eventually capillaries, where oxygen and nutrients are exchanged with tissues. Blood then flows into venules, which merge to form veins, eventually returning to the heart via the venous order. This sequence ensures efficient circulation, maintaining oxygen and nutrient delivery to tissues while removing waste products, facilitated by the lymphatic system's role in fluid balance and immune response.
