Smart Doctor on Instagram: "The Most Critical Network in the Human Body 🧠 - - - The head and neck contain one of the most complex and vital networks in the human body. In this detailed 3D visualization, you explore how blood vessels, nerves, muscles, and organs work in perfect coordination to sustain life, movement, sensation, and consciousness. Oxygen-rich blood reaches the brain primarily through the carotid arteries, supplying tissues that consume nearly 20% of the body’s total oxygen. At th