Fungal anatomy primarily consists of three main structures: the hyphae, mycelium, and fruiting body. Hyphae are long, thread-like cells that form the basic building blocks of fungi. These hyphae can be septate (divided by walls) or coenocytic (without walls), allowing for efficient nutrient absorption and growth. The mycelium is a network of interconnected hyphae that serves as the main body of the fungus, often found underground or within its food source. The fruiting body, such as a mushroom, is the reproductive structure that produces spores, enabling the fungus to reproduce and spread in its environment.