Answer :
Final answer:
Muscles in the human body are characterized by excitability, allowing them to respond to stimuli; contractility, enabling them to generate force and shorten for movement; and extensibility, which allows them to stretch or extend for flexibility.
Explanation:
Excitability is the ability of muscle tissue to respond to a stimulus by changing its electrical state. This change triggers muscle cells to perform action.
Contractility refers to the capacity of muscle tissue to actively generate force and shorten, allowing for movement and the exertion of power. Finally, extensibility describes the property of muscle tissue to stretch or extend. This allows muscles to move joints through a wider range of motion and provides flexibility in the body.
Additionally, muscles possess the property of elasticity, which allows them to return to their original length after being stretched. This elasticity ensures that muscles can efficiently recoil back to their resting state after contraction, contributing to their ability to generate rapid and coordinated movements while maintaining overall muscle integrity and function.
