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What is the smallest contractile unit of the muscle fiber?
sarcomere
What are the striated appearance of skeletal muscle fiber is mainly due to?
cardiac muscle appears striated like the skeletal muscle due to arrangement of contractile proteins
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 movable part of a muscle is?
The sarcomere is the contractile unit of a muscle fiber.
What muscle fiber produces the greatest contractile force?
Leg.
What is the multinucleate muscle fiber?
Skeletal
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.
How relaxation in a skeletal muscle fiber occurs?
Relaxation of a skeletal muscle usually involves the Golgi tendon proprioceptors.
Most skeletal muscles contain?
muscle fiber
A specialized cell found in a skeletal muscle is called a muscle fiber?
true
Why is the Skeletal Muscle Cell shaped like a cylinder?
Skeletal muscle cells are shaped like cylinders to provide the structure with elongated fibers that can contract efficiently and generate force. This shape allows for a high degree of alignment of contractile units (myofibrils) within the cell, enabling coordinated muscle contraction along the length of the muscle fiber.
The cytoplasm of a skeletal muscle fiber is called the?
Sarcoplasm
