Animals are multicellular, eukaryotic, heterotrophic organisms who use various systems of control to maintain homeostasis, the stable internal equilibrium that is brought by certain physiological processes. When a stable internal environment changes, it is the responsibility of the animal’s body to bring conditions back to equilibrium. Animals maintain homeostasis to survive successfully; homeostasis is maintained by feedback systems within the body. These feedback systems regulate aspects of the body such as the body’s temperature, oxygen and carbon dioxide concentrations, pH, concentration of nutrients, wastes, and electrolytes, and volumes and pressures of bodily fluids like blood to keep them all at a safe and healthy level for functioning.
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Many different organs, systems, and cells, are participants in maintaining homeostasis, and animals’ general bodily organization has everything to do with maintaining homeostasis (right now, the focus will be on the anatomy of vertebrates). There are many different cells and small particles in the body that play a huge role in homeostasis, but most work as a part of a tissue for normal bodily functioning. There are four main types of tissue: epithelial tissue, which lines and covers body parts and protects them, such as skin, connective tissue, which can connect, support, bind, or separate body parts, like blood, muscular tissue, which allows the body to move, like the walls of the heart, and nervous tissue, which transmit information by communicating through nerve impulses and are comprised of cells like the neuron and neuroglia. These explanations of tissues are broad, and there are different types of types of tissue, but their functions become even more important because tissues of the same kind join to form organs, which form organ systems which are dependent on tissues. Keeping in mind that the organ systems look a bit different and function differently depending on the animal, there are two organ systems that participate in the transportation of fluids such as blood (which contains nutrients and oxygen), lymph, and cells that fight disease -
Many different organs, systems, and cells, are participants in maintaining homeostasis, and animals’ general bodily organization has everything to do with maintaining homeostasis (right now, the focus will be on the anatomy of vertebrates). There are many different cells and small particles in the body that play a huge role in homeostasis, but most work as a part of a tissue for normal bodily functioning. There are four main types of tissue: epithelial tissue, which lines and covers body parts and protects them, such as skin, connective tissue, which can connect, support, bind, or separate body parts, like blood, muscular tissue, which allows the body to move, like the walls of the heart, and nervous tissue, which transmit information by communicating through nerve impulses and are comprised of cells like the neuron and neuroglia. These explanations of tissues are broad, and there are different types of types of tissue, but their functions become even more important because tissues of the same kind join to form organs, which form organ systems which are dependent on tissues. Keeping in mind that the organ systems look a bit different and function differently depending on the animal, there are two organ systems that participate in the transportation of fluids such as blood (which contains nutrients and oxygen), lymph, and cells that fight disease -