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North Douglas

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Bio 100 Chapter 7 take home exam

Name:______Quyen Tran

1. The organ system that transmits impulses to muscles to cause contraction is the: | | | | | | | |

The nervous system. 2. The organ system that transports oxygen to muscles is the: | | | | | | | | The circulatory system. 3. The organ system that forms a framework that is moved by muscles is the: | | | | | | | | The skeletal system. 4. Tendons are made of ____fibrous connective ____ tissue, and are attached to the _____fascia__ of a muscle. | | | | | | | | 5. The structure that connects a muscle to a bone is called a: | | | | | | | | Muscle structure 6. The origin of a muscle is its: | | | | | Stationary, attaches muscle to bone. | | |

7. The insertion of a muscle is its: More movable attachment point for muscle to bone | | | | | | | | 8. Muscles with the same function are called: | | | | | | | |

Synergistic muscle 9. Muscles with opposite functions are called: Antagonistic muscle | | | | | | | |

10. An antagonist for a muscle on the posterior side of the thigh would be found on the: Biceps femoris | | | |

11. An antagonist for a muscle on the dorsal side of the trunk would be found on the: (please use proper anatomical terms when describing location) Latissimus dorsi | | | | 12. Knowing where our muscles are without looking at them is called: Muscle sense (proprioception). | | | | | | 13. The part of the brain that initiates muscle contraction is the: The cerebellum. | | | | | | | | 14. The direct energy source for muscle contraction is: | | | | | | | | ATP 15. In cell respiration in muscles, the product that is a waste product is: | | | | | | | |

Carbon dioxide 16. In cell respiration in muscles, the product that is used for muscle contraction is: | | | | | Oxygen | | |

17. During strenuous exercise, the production of ___oxygen debt__ when there is no ____oxygen___ present in the muscle fibers contributes to muscle fatigue. | | | | | | | | 18. In the neuromuscular junction, the space between the neuron and the muscle fiber is called the: Synaptic cleft | | | | | | | | 19. During a state of polarization, ___the sodium (Na+)___ ions are abundant outside the cell, and __potassium (K+)___ ions are abundant inside the cell. | | | | | | | | 20. During depolarization, the sarcolemma has a ____negative____ charge outside and a __positive__ charge inside. | | | | | | | | 21. When repolarization takes place, the sarcolemma has a ____positive___ charge outside and a ____negative___ charge inside. | | | | | | | |

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