muscular system Flashcards
function of the muscular system
produces movement maintains posture stabilizes joints generates heat.
contractiblity
the ability to stay shortened when stimulated.
extensibility
the ability of a muscle to extend to a predetermined endpoint.
excitability
is the ability to respond to a stimulus, which may be delivered from a motor neuron or a hormone.
elasticity
general measure of the responsiveness of an economic variable in response to a change in another economic variable
tendon
a flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone.
insertion
an insertion describes the point of attachment in a muscle where more movement occurs.
muscle origin
the more fixed end or attachment of a muscle.
prime mover
the largest muscle in the group creating the motion.
synergist
assisting muscle to prime mover
antagonist muscle
a separate muscle that produces an opposite movement.
sarcomere
A sarcomere is the functional unit of striated muscle. This means it is the most basic unit that makes up our skeletal muscle.
actin and myosin
Actin and myosin are both proteins that are found in every type of muscle tissue
neuromuscular junction
The neuromuscular junction is a vital link between the brain and the muscles, allowing us to move and perform various actions.
Sliding Filament Theory
The sliding filament theory explains how muscles contract at the cellular level by sliding thin and thick filaments past each other
