An even larger load will stretch the muscle.
In skeletal muscle, the cells merge so that the muscle fibres contract in unison.
The emphasis is on understanding adult skeletal muscle, its maintenance, and its interactions with non-muscle cell types and regulatory modulators.
Skeletal muscle is made up of muscle fibers.
Often associated with muscle weakness is the wasting of affected muscle groups.
Muscle biopsies reveal the characteristic degeneration and attempted regeneration of muscle fibres.
Unlike smooth muscle and cardiac muscle, skeletal muscle is under voluntary control.
For an account of the human muscle system as it relates to upright posture, see muscle system, human.
A needle electrode is inserted into the muscle, and the electrical activity of the muscle is measured.
The assessment of muscle weakness (and wasting) is directed toward discovering evidence of muscle inflammation or damage.
They then relax the muscle and the partner stretches the muscle more to allow the muscle to stretch even further.
Smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification.
Muscle growth occurs when the rate of protein synthesised into muscle is greater than the amount of muscle protein breakdown.
The plasma membrane of a muscle cell, called the sarcolemma, separates the sarcoplasm (muscle cell cytoplasm) from the extracellular surroundings.
Smooth muscle and cardiac muscle and the physiology of muscle contraction are treated at great length in the article muscle.
Hypertrophy of muscle occurs in type I (slow-twitch) and type II (fast-twitch) muscle fibres; however, type II muscle fibres have a greater response.
The signal for a muscle to contract originates in the nervous system and is transmitted to the muscle at the neuromuscular junction, a point of contact between the motor nerve and the muscle.
Broadly considered, human muscle—like the muscles of all vertebrates—is often divided into striated muscle (or skeletal muscle), smooth muscle, and cardiac muscle.
Weakness or wasting of muscle is generally caused either by impairment of the nerves supplying it (neuropathic disorders, such as amyotrophic lateral sclerosis and polio) or by intrinsic muscle impairment or primary muscle disease (myopathy).
Cardiac muscle is similar to skeletal muscle, another major muscle type, in that it possesses contractile units known as sarcomeres; this feature, however, also distinguishes it from smooth muscle, the third muscle type.
- one of the contractile organs of the body
- make one's way by force
Example: He muscled his way into the office
- animal tissue consisting predominantly of contractile cells
- a bully employed as a thug or bodyguard
Example: the drug lord had his muscleman to protect him
- authority or power or force (especially when used in a coercive way)
Example: the senators used their muscle to get the party leader to resign
- possessing muscular strength
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