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What is the smallest contractile unit of the muscle fiber?
sarcomere
The smallest functional unit of the muscle fiber?
The smallest functional unit of a muscle fiber is the sarcomere. Sarcomeres are composed of actin and myosin filaments arranged in a repeating pattern, allowing for muscle contraction and relaxation to occur. They are responsible for the striated appearance of skeletal muscle under a microscope.
What repeating units make up a muscle fiber?
sacomeres are a single unit of a muscle fiber multiple sacomeres make up a myofibril
What is the specific relationship of the functional unit of contraction to the striated appearance of a skeletal muscle fiber?
The organization of contractile proteins into a regular end-to-end repeating pattern of sacromeres along the length of each cell accounts for the striated, or striped, appearance of skeletal muscle in longitudinal section.
What is the basic unit of muscle?
muscle fiber
What is the structural unit of a muscle fiber?
A sacromere
The movable part of a muscle is?
The sarcomere is the contractile unit of a muscle fiber.
Basic unit of contraction in skeletal and cardiac muscle?
The Sarcomere
What is the organizational unit of skeletal muscle cells known as?
sacromere
What is the fundamental functional muscle fiber's unit of contraction?
The smallest contractile unit of a muscle fiber is the sarcomere.It is composed of contractile myofilaments known as actin and myosin.
The motor neuron and the muscle fiber it controls constitute a what?
The motor neuron and the muscle fiber it controls constitute a motor unit. This functional unit is essential to the process of muscle contraction and movement in the body. When the motor neuron sends signals to the muscle fiber, it results in the activation and coordination of muscle fibers to produce movement.
What is basic unit of a muscle?
sarcomeresSarcomereSarcomeresThe functional unit of a skeletal muscle is called a sarcomere. Hole's Anatomy 12th edition, pg 287 states: "Muscle fibers, and in a way muscles themselves, are basically collections of sarcomeres, discussed later in this chapter as the functional units of muscle contraction."sarcomere.
