Term
| What are muscles good for? |
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Definition
1. movement
2. stabilization
3. posture
4. generating heat |
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Term
| What is so special about muscle? |
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Definition
1.contractile: cells can contract, generate pulling force
2. excitable: nerve signals cause electrical impulse in plasma membrane of muscle cell which stimulates contraction
3. extensible: muscle tissue can be stretched by contraction of opposing muscle
4. elastic: recoils to original length after being stretched |
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Term
| What are 3 Types of Muscle? |
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Definition
1. Skeletal
2. Cardiac
3. Smooth |
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Term
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Definition
| voluntary striated muscle that you consciously control the movement of. That found in all limbs and body walls. |
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Term
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Definition
| involuntary striated muscle, innervated by the autonomic nervous system. Found only in the walls of the heart. |
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Term
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Definition
| – involuntary, non-striated muscle, innervated by the autonomic nervous system. Found in the walls of blood vessels and hollow internal organs |
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Term
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Definition
| fibrous CT (primarily collagen fibers) that surrounds and separates muscles in the body |
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Term
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Definition
| a cord-like fascial extension at end of the muscle attaching it to body by the intermingling of collagen fibers with those of the periosteum |
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Term
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Definition
| broad, sheet-like arrangement of fascia attaching muscle to muscle or bone |
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Term
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Definition
| the collagen fibers of the periosteum that insert into the underlying bone. The collagen fibers of tendons blend with those of the periosteum which in turn blend with Sharpey’s fibers, thus forming a contractile unit |
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Term
| Skeletal Muscle (detailed) |
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Definition
parallel striated muscle cells (fibers) surrounded and held together by CT fibers, with capillary beds running parallel to fibers
contract in response to acetylcholine (neurotransmitter)
The striated appearance of this muscle is due to the arrangement of various myofilaments found within the contractile units (sarcomeres) of the muscle. |
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Term
| Skeletal Muscle (detailed) |
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Definition
parallel striated muscle cells (fibers) surrounded and held together by CT fibers, with capillary beds running parallel to fibers
contract in response to acetylcholine (neurotransmitter)
The striated appearance of this muscle is due to the arrangement of various myofilaments found within the contractile units (sarcomeres) of the muscle. |
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Term
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Definition
| The smallest functional unit of a skeletal muscle cell, extends from z-line to z-line |
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