Knowledge of Muscle Anatomy and Physiology Flashcards
Muscle anatomy (e.g., muscle group names, specific muscle names, muscle fiber/cell structure). Muscular dynamics involved during movement patterns (e.g., sliding filament theory, type of muscle action).
Which of the two nervous systems activates the motor neurons of muscle cells?
The peripheral nervous system.
The peripheral nervous system activates ____ ____, which innervates muscle cells.
Motor neurons
Which part of the brain controls the movement of skeletal muscle tissue?
The cerebral cortex.
A continuous supply of what and what are required for the function of working muscle tissues?
Oxygen and nutrients.
A continuous removal of what and what are required for the function of working muscle tissues?
Carbon Dioxide and Metabolic Waste By-products.
What is the musculoskeletal system comprised of?
Muscles, bones, tendons, and joints.
Describe how muscles exert force.
Muscles act and exert force by pulling on bones. The bones rotate around their given joints, and the forces created by pulling are exerted on the external environment as either pushing or pulling.
What is the outermost layer of the muscle called?
The epimysium.
What kind of tissue is the epimysium?
Fibrous connective tissue.
What is the bone periosteum?
The bone periosteum covers all the bones and serves as the attachment site for muscle tendons. It is a specialized connective tissue.
What kind of appearance commonly describes the muscle cell?
A striated appearance.
A fasciculus may consist of as many as how many muscle fibers?
Up to 150 fibers.
The fasciculus is wrapped in a layer of connective tissue called the what?
Perimysium.
Each muscle fiber is wrapped in a layer of connective tissue called the what?
Endomysium.
What is the name of the specialized plasma membrane of the muscle cell?
The sarcolemma.
