กลุ่ม กิตติศักดิ์

sketchfab

The human body is a complex and highly regulated system that functions to maintain homeostasis. The brain acts as the central control unit of the nervous system, processing information from sensory inputs and sending signals to muscles and glands throughout the body. At the molecular level, the cell membrane plays a crucial role in controlling what enters and leaves the cell. The cell membrane is selectively permeable, allowing certain substances to pass through while blocking others. This process is mediated by various transport proteins that facilitate the movement of molecules across the membrane. The heart pumps blood throughout the body, supplying oxygen and nutrients to tissues and organs. The lungs exchange gases with the environment, taking in oxygen and releasing carbon dioxide. The liver plays a critical role in detoxification, filtering toxins from the bloodstream and excreting them into the urine or feces. Overall, the human body is an intricate system that relies on the coordinated functioning of its various components to maintain optimal health.