Answer:
Animal tissues are composed of specialized cells organized in a specific manner to carry out specific functions. The structure of each tissue type is adapted to fulfill its specific role. Here are a few examples:
Step-by-step explanation:
Epithelial Tissue: Epithelial tissues consist of closely packed cells that form a continuous layer covering internal and external surfaces of the body. The structure of epithelial tissues, such as having tightly joined cells and the presence of specialized cell junctions, helps provide a protective barrier, regulate the exchange of substances, and enable selective absorption and secretion.
Muscle Tissue: Muscle tissues are made up of elongated muscle cells called muscle fibers. These cells have a unique structure characterized by the presence of contractile proteins (actin and myosin) that allow them to generate force and contract. The arrangement of these proteins and the organization of muscle fibers into bundles or layers enable muscle tissues to generate movement and provide mechanical support.
Connective Tissue: Connective tissues have diverse structures depending on their specific type (e.g., loose connective tissue, dense connective tissue, cartilage, bone). Generally, connective tissues consist of cells embedded in an extracellular matrix composed of proteins, fibers, and ground substance. The structure of connective tissues allows them to provide support, connect and anchor tissues and organs, protect delicate structures, and store energy.
Nervous Tissue: Nervous tissue is made up of specialized cells called neurons that transmit electrical impulses and support cells called glial cells. Neurons have a unique structure with long extensions (axons and dendrites) that facilitate the transmission of signals. The structure of nervous tissue, including the branching of neurons and the formation of synapses, enables communication and coordination of activities within the nervous system.