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Module 2bb - A&P
Introduction to the Human Body
| Question | Answer |
|---|---|
| three types of muscle | skeletalsmoothcardiac |
| skeletal muscle | generally attached to bonecontrolled by choice (voluntary muscle) |
| skeletal muscle | looks striped or striated |
| skeletal muscle | produce movementmaintain body posturestabilize jointshelps maintain body temperature |
| smooth muscle | generally found the walls of viscera, such as stomach |
| visceral muscle | smooth muscle found in the organs |
| smooth muscle | also found in tubes and passageways |
| smooth muscle | functions automatically also called involuntary muscle |
| nonstriated muscle | no strips, contractions of smooth muscle enables the viscera to perform their functions |
| cardiac muscle | found only in the heart, where it functions to pump blood throughtout the body |
| intercalated discs | cardiac muscle cells are long branching cells that fit together tightly at junctions |
| cardiac muscle | classified as striated and involuntary muscle |
| belly | refers to the enlarged fleshy body of the muscle between the slender points of attachment |
| fascia | large skeletal muscle is surrounded by layers of tough connective tissue |
| epimysium | outer layer of fascia |
| tendon | fascia extends toward and attaches to the bone as tendon, a strong cordlike structure |
| perimysium | another layer of connective tissue, surrounds smaller bundles of muscle fibers |
| fascicles | bundles of muscle fibers |
| endomysium | third layer of connective tissue that surround the fascicles |
| crush syndrome | compartment syndrome, crush injury, muscle is damaged becomes inflamed; leaches fluid into the compartment; pressure increase and compresses nerves and blood vessels;deprived of oxygen and nourishement; muscles and nerves begin to die |
| aponeurosis | muscle attaches to other structures in three ways; first the tendon attaches the muscle to the bone; second muscles attach directly without tendon; to a bone or soft tissue; |
| third a flat sheetlike fascia called aponeurosis connects muscle to muscle or muscle to bone |
Created by:
janmaire
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