Chapter 6 Vocab
Terms
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- insertion
- the movable attachment of a muscle as opposed to its origin
- myosin
- one of the principle contractile protein of muscle
- myofibril
- contractile organelles found in cytoplasm of muscle cells
- rigor mortis
- one of the recognitions of death caused by a chemical change in muscle after death causing the limbs to become stiff
- neuron
- cells of the nervous system specialized to transmit messages througout the body
- actin
- a contractile protein of muscle
- Muscle Fiber
- Muscle Cell
- sacromeres
- the smallest contractile unit of muscle: extends from one z disc to the next
- neuromuscular junction
- the region where a motor neuron comes into close contact with a skeletal muscle
- Fascia
- layers of fibrous tissue covering and seperating muscle
- myo
- prefix for muscle
- involuntary
- muscle that works all the time
- tendon
- cord of dense fibrous tissue attaching a muscle to a bone
- Striated
- muscle consisting of cross striped muscle fibers
- atrophy
- a reduction in size or wasting away of an organ or cell resulting from disease or lack of use
- hypertrophy
- an increase in the size of a tissue or organ independent of the bodys general growth
- voluntary
- muscle under control of the will
- origin
- a skeletal muscle conects to an immovable or less movable bone
- nonstriated
- spindle shaped unstriated muscle fibers involuntary