You are training for a spartan race and Ninja Warrior. You have rock climbed up two medium-sized mountains and now are on mile three of an uphill hike. Explain how your organ systems, (muscle system is forcing your cardiovascular, respiratory, digestive, and integumentary) have been working together, allowing you to continue hiking without collapsing to remain in homeostasis. Be sure to discuss the physiology and anatomy in the tissues and organs of all systems.