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Chapter 9: Muscular System
Terms in this set (15)
The striations seen in skeletal muscle consist of alternating dark bands, called the __________ bands, and light bands, called the __________ bands.
Compared to skeletal muscle, smooth muscle is __________ to contract and __________ to relax.
What is the term for the contractile response of a single muscle fiber to a single muscle impulse?
Describe how action potentials travel from the sarcolemma into the interior of the muscle fibers, resulting in the release of calcium ions into the sarcoplasm.
Action potentials travel along T tubles.
Which muscle is the prime mover of shoulder abduction (abduction of the arm)?
Name the cordlike structures that connect muscles to bone.
Name the organelles that store neurotransmitter molecules within the distal end of a motor neuron axon.
Muscles that flex the wrist are found on the __________ side of the forearm while those that extend the wrist are found on the __________ side of the forearm.
In what type of muscle do muscle impulses pass freely from cell to cell, resulting in contraction of the entire muscle, not just individual fibers?
Cardiac muscle and visceral smooth muscle
Contraction of the splenius capitis and semispinalis capitis will move the __________.
Name the functional units of contraction in a muscle fiber.
In order for a skeletal muscle fiber to contract, calcium must bind to __________ .
Name the type of synapse that occurs between a motor neuron and a muscle fiber.
The metabolic process that generates a net of two ATP molecules in the cytosol of a muscle fiber is called __________ .
What is the term for the inability of a muscle to contract after rigorous exercise?
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