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Muscular System
| Question | Answer |
|---|---|
| The three types of muscle tissue are... | Skeletal, Smooth, and Cardiac |
| The two types of muscles tissue that contain striations are... | Cardiac and Skeletal |
| The involuntary muscles tissues are... | Cardiac and Smooth |
| This type of muscle tissue has branching and intercalated disks.. | Cardiac |
| This two types of muscles tissue have a single nucleus... | Cardiac and Smooth |
| Smooth muscles tissue is found... | On the walls of the digestive system and blood vessels. |
| Skeletal muscles is covered by... | Epimysium |
| Each fascicle (group of muscle cells) is covered by the... | Perimysium |
| An individual muscle cell is a... | muscle fiber |
| Each muscle fiber is covered by the... | epimysium |
| The strong fibrous band of connective tissue that attaches the muscle to the periosteum of the bone... | tendon |
| The movement of blood and lymph is a function of... | Skeletal muscles |
| Maintenance of body temperature is a function of... | Skeletal muscles |
| In a muscle fiber, the plasma membrane is called the... | sarcolemma |
| Cytoplasm in the muscle fiber is known as... | sarcoplasm |
| The endoplasmic reticulum inside a muscle fiber is known as... | sarcoplasmic reticulum |
| In muscle contraction, the axon terminal of a motor neuron releases _______ into the synaptic cleft. | acetycholine (Ach) |
| Acetylcholine binds to receptors on the... | sarcolemma of the muscle fiber |
| Electrical impulses from the sarcolemma are carried into the muscle fiber by the... | transverse or T-tubules |
| In the muscle fiber, calcium is stored in the... | sarcoplasmic reticulum |
| Calcium binds to the protein ______ inside the thin filaments. | troponin |
| When the troponin binds to calcium it causes the _______ to move aside, allowing it access to myosin binding sites on the ______ molecules. | tropomyosin, actin |
| In the final stage of muscle contraction, the corssbridges of thick filaments, or _______, attach to the binding site and a power stroke pulls the thin filament toward the center of the ________. | myosin, sarcomere |
| Extensions of the sarcolemma (plasma membrane) that go deep into a cell... | T-tubules |
| T-tubules connect with the _________, which stores calcium. | sarcoplasmic reticulum |
| A rod that goes from one end of the muscle cell to the other and is made of many bound sarcomeres. | myofibril |
| The smallest unit of contractions is called a... | sarcomere |
| The process by which acetylcholine is released is... | exocytosis |
| When a muscle produces ATP by giving a new phosphate group it is known as... | Creatine phosphate breakdown |
| When a muscle acquires new AP by using glucose and oxygen it is... | cellular respiration |
| When a muscle acquires new ATP by using only glucose it is called... | fermentation |
| The increase in muscle size is known as... | hypertrophy |
| Fibers that tend to be aerobic and have more endurance are... | Slow-Twitch fibers |
| Fibers that have many mitochondria, are dark in color, and resistant to fatigue are... | Slow-Twitch fibers |
| Fibers that are anaerobic and good for strength are... | Fast-Twitch fibers |
| Fibers that are vulnerable to the accumulation of lactic acid and can fatigue easily are... | Fast-Twitch fibers |