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DEPENDS ON OXYGEN DELIVERY AND AEROBIC MECHANMISMS
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HAVE VERY FAST ACTING MYOSIN ATPases AND DEPEND UPON ANAEROBIC METABOLISM DURING CONTRACTION.
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A&P CH-9
FINAL
| Question | Answer |
|---|---|
| DEPENDS ON OXYGEN DELIVERY AND AEROBIC MECHANMISMS | SLOW (OXIDATIVE) FATIGUE RESISTANT FIBERS. |
| HAVE VERY FAST ACTING MYOSIN ATPases AND DEPEND UPON ANAEROBIC METABOLISM DURING CONTRACTION. | FAST(OXIDATIVE OR GLYCOLYTIC) FATIGABLE FIBERS |
| RED FIBERS, THE SMALLEST OF THE FIBER TYPES | SLOW(OXIDATIVE),FATIGUE RESISTANT FIBERS |
| CONTAIN ABUNDANT AMOUNTS OF GLYCOGEN | FAST(OXIDATIVE OR GLYCOLYTIC) FATIGABLE FIBERS |
| ABUNDANT IN MUSCLES USED TO MAINTAIN POSTURE | SLOW(OXIDATIVE),FATIGUE RESISTANT FIBERS |
| A RELATIVELY HIGH PERCENTAGE ARE FOUND IN SUCCESSFUL MARATHON RUNNERS | SLOW(OXIDATIVE),FATIGUE RESISTANT FIBERS |
| WHAT PRODUCES THE STRIATIONS OF A SKELETAL MUSCLE | THE ARRANGEMENT OF MYOFILAMENTS |
| WHICH OF THE FOLLOWING ARE COMPOSED OF MYOSIN | THICK FILAMENTS |
| DURING MUSCLE CONTRACTION, MYOSIN CROSS BRIDGES ATTACH TO WHICH ACTIVE SITES? | ACTIN FILAMENTS |
| WHICH OF THE FOLLOWING SURROUNDS THE INDIVIDUAL MUSCLE CELL | ENDOMYSIUM |
| SMOOTH MUSCLE CELLS THAT ACT LIKE SKELETAL MUSCLES BUT ARE CONTROLLED BY AUTONOMIC NERS AND HORMONES | MULTIUNIT MUSCLES |
| RIGOR MORTIS OCCURS BECAUSE | NO ATP IS AVAILABLE TO RELEASE ATTACHED ACTIN AND MYOSIN MOLECULES |
| WHAT DOES NOT DESCRIBE HOW RECOVERY OXYGEN UPTAKE (OXYGEN DEFICIT) RESTORES METABOLIC CONDITIONS | INCREASES LEVEL OF LACTIC ACID IN THE MUSCLE |
| THE TERM APONEUROSIS REFERS TO | A SHEETLIKE INDIRECT ATTACHMENT TO A SKELETAL ELEMENT. |
| THE OXYGEN BINDING PROTEIN FOUND IN MUSCLE CELLS IS | MYOGLOBIN |
| THE CONTRACTILE UNITS OF SKELETAL MUSCLES ARE | MYOFIBRILS |
| WHAT IS NOT A WAY MUSCLE CONTRACTIONS CAN BE GRADED | CHANGING THE TYPE OF MUSCLE FIBERS INVOLVED IN THE CONTRACTION |
| WHAT IS THE FUNCTIONAL UNIT OF SKELETAL MUSCLE CALLED | A SARCOMERE |
| WHAT IS THE FUNCTIONAL ROLE OF T TUBULES | ENHANCE CELLULAR COMMUNICATION DURING MUSCLE CONTRACTION |
| WHAT IS THE ROLE OF CALCIUM IONS IN MUSCLE CONTRACTIONS | BIND TO REGULATORY SITES ON TROPONIN TO REMOVE CONTRACTION INHIBITION |
| THE WARM UP PERIOD REQUIRED OF ATHLETES IN ORDER TO BRING THEIR MUSCLES TO PEAK PERFORMANCE IS CALLED | TREPPE |
| THE MAIN EFFECT OF THE WARM UP PERIOD OF ATHLETES AS THE MUSCLE CONTRACTIONS INCREASE IN STRENGTH IS TO | ENHANCE AVAILABILITY OF CALCIUM AND THE EFFICIENCY OF ENZYME SYSTEMS |
| DURING VIGOROUS EXERCISE THERE MAY BE INSUFFICIENT OXYGEN AVAILABLE TO COMPLETELY BREAK DOWN PYRUVIC ACID FOR ENERGY. AS A RESULT, THE PYRUVIC ACID IS CONVERTED TO | LACTIC ACID |
| WHEN A MUSCLE IS UNABLE TO RESPOND TO STIMULI TEMOPARILY, IT IS IN WHICH OF THE FOLLOWING PERIODS | REFRACTORY PERIOD |
| IN AN ISOTONIC CONTRACTION, THE MUSCLE | CHANGES IN LENGTH AND MOVES THE LOAD |
| THE MUSCLE CELL MEMBRANE IS CALLED THE | SARCOLEMMA |
| WHAT IS THE CORRECT SEQUENCE OF EVENTS FOR MUSCLE CONTRACTIONS | MOTOR NEURON ACTION POTENTIAL, NEUROTRANSMITTER RELEASE, MUSCLE CELL ACTION POTENTIAL, RELEASE OF CALCIUM IONS FROM SR, ATP DRIVEN POWER STROKE, SLIDING OF MYOFILAMENTS |
| THE MECHANISM OF CONTRACTION IN SMOOTH MUSCLE IS DIFFERENT FROM SKELETAL MUSCLE IN THAT | THE SITE OF CALCIUM REGULATION DIFFERS |
| WHAT DESCRIBES THE CELLS OF A SINGLE UNIT VISCERAL MUSCLE | THEY EXHIBIT SPONTANEOUS ACTION POTENTIALS |
| WHAT IS NOT A ROLE OF IONIC CALCIUM IN MUSCLE CONTRACTION | ACTIVATES EPINEPHRINE RELEASED FROM ADRENAL GLAND |
| WHAT IS TRUE ABOUT SMOOTH MUSCLE | CERTAIN SMOOTH MUSCLE CELLS CAN ACTUALLY DIVIDE TO INCREASE THEIR NUMBERS |
| SMOOTH MUSCLE IS CHARACTERIZED BY | THERE ARE MORE THICK FILAMENTS THAN THIN FILAMENTS |
| MUSCLE TISSUE ALL OF THE FOLLOWING PROPERTIES EXCEPT | SECRETION |
| THE GIANT PROTEIN TITIN MAINTAINS THE ORGANIZATION OF THE ______ ASSISTING IN MUSCLE STRETCHING | A-BAND |
| WHAT IS A TRUE STATEMENT OF MUSCLE CELLS | STRIATED MUSCLE CELLS ARE LONG CYLINDRICAL WITH MANY NUCLEI |
| AN ANAEROBIC METABOLIC PATHWAY THAT RESULTS IN THE PRODUCTION OF TWO NET ATPS PER GLUCOSE PLUS TWO PYRUVIC ACID MOLECULES IS | GLYCOLYSIS |
| MUSCLE TONE IS | A STATE OF SUSTAINED PARTIAL CONTRACTION |
| THE SLIDING FILAMENT MODEL OF CONTRACTION INVOLVES | ACTIN AND MYOSIN SLIDING PAST EACH OTHER AND PARTIALLY OVERLAPPING |
| AFTER NERVOUS STIMULATION STOPS, WHAT PREVENTS ACh IN THE SYNAPTIC CLEFT FROM CONTINUING TO STIMULATE CONTRACTION | ACETYLCHOLINESTERASE DESTROYING ACh |
| WHAT IS A TRUE STATEMENT REGARDING MUSCLE CONTRACTION | MUSCLE TENSION REMAINS RELATIVELY CONSTANT DURING ISOTONIC CONTRACTION |
Created by:
TRESCEE