tumor of muscle tissue

muscle pain

spontaneous contraction of a single muscular fiber

spasmodic involuntary twitching of a muscle that is under voluntary control

involuntary twitch of an entire motor unit visible under the skin

dense connective tissue around a muscle fiber

a muscle cell is know as

fibrous connective tissue beneath the skin or around muscles and organs

sustained partial contraction to a portion of skeletal muscle

fibrous connective tissue that connects muscle to bone

connective tissue that separates fascicles in skeletal muscle tissue

T tubules conduct muscle action potentials towards the sarcoplasmic reticulum

muscle tissue that is both striated and involuntary and has intercalated discs

when a muscle fiber is relaxed calcium is stored in

which is the smallest

the muscle protein whose function is related to its golf club like shape

the plasma membrane of a myofiber

processes by which a motor neuron releases acetylcholine

a broad sheet of connective tissue at the edge of a wide muscle

synaptic vesicles in the axon terminal at the neuromuscular junction contain

muscle tissue can receive and respond to stimuli because of this property

sphincters do what

bones , striated, voluntary

heart, striated, involuntary

organs , vessels, nonstriated , involuntary

what is a sphincter

attaches to bone skin or fascia pulls on bones to produce movements

located in cardiac tissue

attached to hair follicles in the skin, lines walls of hollow organs

ability to receive/respond to certain stimuli by producing electrical signals

ability to contract and generate force

ability to be stretched without damaging the tissue

ability to return to the original shape after being stretched

white colored connective tissue holds binds muscle together in groups while still allowing free movement

loose connective tissue and fat underlying the skin

dense irregular connective tissue holding muscle with similar function together

extends from tendon and surrounds entire muscle

deep to epimysium surrounds bundles of 10-100 muscle cells/fibers

wraps around each individual muscle fiber/cell

plasma membrane surrounding each muscle cell

cytoplasm of muscle cell, contains man mitochondria for ATP production, also contains myoglobin and myofibrils

protein within a sarcoplasm that stores o2 for ATP production by mitochondria reddish pigment gives muscles their red color

100s-1000s of tiny threads that run parallel through ,uscle fibers consists of many thin and thick filaments

basic functional unit of striated muscle fiber

invaginations of the sarcolemma into the center of the muscle cell/fiber, carries muscle AP deep down into cell toward sarcoplasmic reticulum

stores calcium in a relaxed muscle, releases of calcium from SR trigger muscle contraction

myosin shaped like 2 twisted gold clubs

actin twists into a helix and contains myosin binding sites where myosin heads can attach

reduction in size or wasting away of a muscle cell/fiber dur to loss of myofibrils, muscle inactivity causes decreases in size

increase in size of muscle cell/fiber diameter due to exericse makes contraction more forceful

nerve cell that delivers nerve impulse to muscle fiber

single somatic motor neuron along with all the muscle fibers it stimulates

area in which nerve and muscle meet ,(meeting but not touching)

single somatic motor neuron along with all muscle fibers it stimulates