Skeletal muscle is controlled directly by the central nervous system via a system of motor and sensory nerve fibers. Which of the following terms is not used to describe skeletal muscle?
A) Voluntary
B) Striated
C) Extrafusal
D) Fibrotic

Question

Quizplus · Accepted Answer

Skeletal muscle is described as voluntary (meaning it can be consciously controlled), striated (due to the arrangement of actin and myosin fibers), and extrafusal (meaning it is the primary contractile unit of skeletal muscle). Fibrotic is not used to describe skeletal muscle, as this term typically refers to the formation of fibrous tissue in response to injury or inflammation.

Skeletal Muscle Is Controlled Directly by the Central Nervous System