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(anatomy) the point of connection between two bones or elements of a skeleton (especially if the articulation allows motion)
fundamental division of our body. Makes up the main axis of our body, includes the head, neck, and trunk.
a fibrous sac between certain tendons and bones that is lined with a synovial membrane that secretes synovial fluid
a dense fibrous membrane covering the surface of bones (except at their extremities) and serving as an attachment for tendons and muscles
the process during the action potential when sodium is rushing into the cell causing the interior to become more positive
a sheet or band of fibrous connective tissue separating or binding together muscles and organs etc
of or involving muscular contraction in which tension increases while length remains constant
produced in muscles during rapid exercise when the body cannot supply enough oxygen to the tissues
inability of of a muscle to contract when stimulated caused by lack of oxygen, energy, and increased lactic acid
the awerness of body movements and of the location of body parts that results from proper coordination between tthe muscular and nervous system.
the state of balanced muscle tension that makes normal posture, coordination, and movement possible
a type of protein filament that acts as a motor protein with actin filaments to cause cell contraction.
The termination of a motor neuron on the sarcolemma of a muscle fiber; the synapse is the microscopic space between the two structures.
The distribution of ions on either side of a membrane; in a resting neuron or muscle cells, sodium ions are more abundant of the outside the cell, giving the membrane a positive charge outside and a relative negative charge inside.
A muscle that is the primary actor in a given movement, that is, the muscle that produces the movement in muscle contraction.
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