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CHAPTER 7 ICTC
MUSCULAR SYSTEM
Question | Answer |
---|---|
How many muscles is in the muscular system? | over 600 |
WHAT IS THE PRIMARY FUNCTION OF THE MUSCULAR SYSTEM? | MOVEMENT |
NAME ANOTHER FUNCTION OF THE MUSCULAR SYSTEM NOT MOVEMENT. | PRODUCES HEAT |
MUSCULAR SYSTEM IS SPECIALIZED FOR WHAT? | CONTRACTION |
NAME THREE THINGS MUSCLES CAN DO. | PULL,SHORTEN AND CONTRACT |
NAME THE FOUR ORGAN SYSTEMS INVOLVED IN MOVEMENT. | MUSCULAR, SKELETAL, NERVOUS,AND RESPIRATORY |
WHAT DOES THE MUSCULAR ORGAN SYSTEM DO? | IT MOVES THE BONES |
WHAT DOES THE SKELETAL ORGAN SYSTEM DO? | BONES ARE MOVED, AT JOINTS BY MUSCLES |
WHAT DOES THE NERVOUS ORGAN SYSTEM DO? | IMPULSES TO MUSCLE CAUSE CONTRACTION |
WHAT DOES THE RESPIRATORY ORGAN SYSTEM DO? | EXCHANGES O2 AND CO2 BETWEEN AIR AND BLOOD |
MUSCLE TISSUE-SKELETAL IS VOLUNTARY AND ? | STRIATED |
MUSCLE TISSUE-SKELETAL IS MULTI NUCLEATED AND ? | CYLINDRICAL |
MUSCLE TISSUE -SKELETAL IS CAPABLE OF SUDDEN, POWERFUL CONTRACTIONS, READILY SUBJECT TO FATIGUE CANNOT SUSTAIN WHAT? | CONTRACTION FOR LONG PERIODS OF TIME |
MUSCLE TISSUE-SKELETAL IS MADE OF? | SEVERAL FIBERS |
MUSCLE TISSUE-SMOOTH IS VISCERAL AND ? | INVOLUNTARY |
MUSCLE TISSUE -SMOOTH IS SPINDLE SHAPED ONE NUCLEUS AND ? | NON STRIATED |
MUSCLE TISSUE -SMOOTH IS FOUND WHERE? | IN WALLS OF HOLLOW OR TUBULAR STRUCTURES |
MUSCLE TISSUE-SMOOTH IS RESPONSIBLE FOR WHAT? | SLOWER SUSTAINED CONTRACTION |
MUSCLE TISSUE -SMOOTH CAN REMAIN IN STATE OF CONTRACTION FOR LONG PERIODS OF TIME, SUSTAINED RHYTHMIC CONTRACTIONS AND WHAT? | SELF EXCITING |
EACH SKELETAL MUSCLE IS COMPOSED OF WHAT? | THOUSANDS OF MUSCLE FIBERS (CELLS) |
TENDONS CONNECT MUSCLES TO BONES AND MERGE WITH ? | FASCIA |
WHAT IS THE FASCIA? | COVERS MUSCLE AND IS CONTINOUS WITH THE PERIOSTEUM OF THE BONES(MERGERS WITH TENDONS |
HOW MANY POINTS IS EACH MUSCLE ATTACHED TO? | AT LEAST 2 POINTS |
NAME THE POINTS EACH MUSCLE IS ATTACHED TO. | ORIGIN AND INSERTION |
THE IMMOBILE POINT OF ATTACHMENT OR STATIONARY END IS THE | ORIGIN |
THE MOVEABLE POINT OF ATTACHMENT IS ? | INSERTION |
WHAT IS THE NAME OF THE CENTER OR LARGEST PART OF A MUSCLE? | BODY OR BELLY |
HOW DO MUSCLES BRING ABOUT MOVEMENT? | BY WORKING IN PAIRS OR GROUPS |
PRIME MOVERS ARE? | THOSE MUSCLES THAT INITIATE MOVEMENT;ARE RESPONSIBLE FOR MOST OF THE MOVEMENT |
DEFINE ANTAGONISTS: | MUSCLES THAT OPPOSE THE ACTION OF THE PRIME MOVER AND MUST BE RELAXED SO THAT MOVEMENT MAY TAKE PLACE |
DEFINE SYNERGIST: | MUSCLES WITH THE SAME FUNCTION, OR THAT WORK TOGETHER TO PERFORM A PARTICULAR FUNCTION |
HOW DO MUSCLES ATTACH TO BONES? | THROUGH EITHER TENDINOUS OR FLESHY ATTACHMENTS |
MUSCLES HAVE AT LEAST TWO ATTACHMENTS AND MUST CROSEE AT LEAST HOW MANY JOINTS? | ONE |
WHAT CAN AFFECT THE SHAPES OF BONES? | MUSCLES |
MUSCLES ALWAYS PULL AND GET? | SHORTER |
MOVEMENT THAT DECREASES THE ANGLE OF VENTRAL SURFACES ARE KNOWN AS ? | FLEXION |
MUSCLES THAT DECREASE THE ANGLE ARE KNOWN AS? | FLEXORS |
MUSCLES WORK IN ? PAIRS | OPPOSING |
WHAT DO MUSCLE STRIATIONS/ FIBER DIRECTION DO? | POINT TO ATTACHMENTS AND SHOW DIRECTION OF PULL |
WHERE DO NERVE IMPULSES FOR MOVEMENT COME FROM? | THE FRONTAL LOBES OF THE CEREBRUM |
COORDINATION OF MEOVEMENT IS CONTROLLED BY ? | THE CEREBELLUM |
WHAT IS MUSCLE TONE? | THE STATE OF SLIGHT CONTRACTION OF MUSCLES |
MUSCLE TONE HELPS TO MAINTAIN WHAT? | UPRIGHT POSTURE AND IS THE ABILITY OF THE MUSCLE TO MAINTAIN A CONTRACTION |
MUSCLES REQUIRE WHAT TO CONTRACT? | ATP |
CELLULAR RESPIRATION PRODUCES WHAT? | WATER,CARBON DIOXIDE, AND ATP |
NAME THE TWO GENERAL TYPES OF EXERCISE? | ISOTONIC AND ISOMETRIC |
ISOTONIC EXERCISE DOES WHAT? | CONTRACT BRING ABOUT MOVEMENT |
WHAT DOES ISOMETRIC EXERCISE DO? | CONTRACT WITHOUT MOVEMENT |
DEFINE PROPRIOCEPTION: | THE BRAIN'S ABILITY TO KNOW WHERE MUSCLES ARE AND WHAT THEY ARE DOING WITHOUT LOOKING AT THEM |
DEFINE STRETCH RECEPTORS: | SEND INFORMATION TO THE PARIETAL LOBES OF THE CEREBRUM GENERAL FUNCTION IS TO DETECT CHANGE, GIVE BRAIN MENTAL PICTURE OF WHERE THE MUSCLE IS |
NAME 3 ENERGY SOURCES FOR MUSCLE CONTRACTION. | ATP,CREATINE PHOPHATE,GLYCOGEN |
WHAT IS THE MOST ABUNDANT ENERGY SOURCE IN MUSCLE FIBERS? | GLYCOGEN |
IF O2 IS NOT PRESENT WHAT IS GLUCOSE CONVERTED TO AND WHY? | LACTIC ACID, BECAUSE IT CANNOT BE COMPLETELY BROKEN DOWN. |
WHAT DOES HEMOGLOBIN DO? | DELIVERS O2 (RBC'S IN BLOOD) |
WHAT DOES MYOGLOBIN DO? | (WITHIN MUSCLE FIBERS)STORES O2 |
WHAT MINERAL MUST BE PRESENT FOR HEMOGLOBIN AND MYOGLOBIN? | IRON |
OXYGEN STORED UP IN WHAT IS QUICKLY USED UP DURING STRENOUS EXERCISE? | MYOGLOBIN |
GLUCOSE CONVERTS TO LACTIC ACID FOR ENERGY WHICH CAUSES WHAT? | MUSCLE FATIGUE |
INA STATE OF FATIGUE MUSCLES CANNOT WHAT? | CONTRACT EFFICIENTLY AND CONTRACTON MAY BECOME PAINFUL |
WHAT REMAINS HIGH TO RECOVER? | RESPIRATORY/HEART RATE |
WHAT HELPS TO REMOVE EXCESS HEAT? | SWEATING |
MOTOR NERVE ENDINGS(NUERONS) ARE FOUND WHERE? | ON EACH FIBER |
WHAT IS A NUEROMUSCULAR JUNCTION? | WHERE MOTOR NUERON COMES IN CONTACT WITH MUSCLE FIRBER;AREA WHERE THE MOTOR NEURON TERMINATES ON THE MUSCLE FIBER |
AXON TERMINAL (MOTOR END PLATE) ENLARGED TIP OF A MOTOR NEURON CONTAINS WHAT? | ACETYCHOLINE |
WHAT IS SARCOLEMMA? | MEMBRANE OF THE MUSCLE FIBER; IT CONTAINS RECEPTOR SITES FOR ACETYLCHOLINE AND CHOLINESTERASE |
WHAT IS SYNAPSE? | SMALL SPACE BETWEEN THE AXON TERMINAL AND THE MUSCLE FIBER |
WHAT IS ACTIN AND MYOSIN? | PROTEINS IN MUSCLE FIBERS RESPONSIBLE FOR CONTRACTION AND RELAXATION MYOSIN IS THE CENTER OF THE SARCOMERE |
WHAT IS THE FUNCTIONS OF TROPIN AND TROPOMYOSIN? | PREVENT THE SLIDING OG ACTIN AND MYOSIN WHEN THE MUSCLE FIBER IS RELAXED |
WHAT IS SACROPLASMIC RETICULUM? | RESERVOIR FOR CALCIUM WHICH IS ESSENTIAL FOR THE CONTRACTION PROCESS |
WHAT IS T TUBULES? | INWARD FOLDS OF SARCOLEMMA THAT CARRY ACTION POTENTIAL TO THE INTERIOR FOF THE MUSCLE CELL |
CNS SIGNALS (?) MOTOR NEURONS? | STIMULATES |
STIMULUS IS SPREAD TO THE WHAT JUNCTION? | NEUROMUSCLAR |
WHAT DO TERMINAL AXONS PRODUCE? | cns |