MUSCULAR SYSTEM Flashcards
WHAT ARE THE PRIMARY FUNCTIONS OF SKELETAL MUSCLES
-PROVIDE SKELETAL MOVEMENT
-CONTROL ENTRANCES AND EXITS OF DIGESTIVE TRACT
-PRODUCE HEAT
-SUPPORT SKELETAL POSTION
WHAT ARE THE PRIMARY FUNCTIONS OF AXIAL MUSCLES
SUPPORT AND POSITION AXIAL SKELETON
WHAT ARE THE PRIMARY FUNCTIONS OF APPENDICULAR MUSCLES
SUPPORT,MOVE AND BRACE LIMBS
WHAT ARE THE PRIMARY FUNCTIONS OF TENDONS AND APONEUROSES
HARNESS FORCES OF CONTRACTION TO PERFORM SPECIFIC TASKS
WHAT MAKES UP THE BULK OF OUR BODY AND HOW MUCH DOES IT WEIGH
MUSCLES ( 1/3 OF OUR WEIGHT )
BLOOD VESSELS AD NERVES RUN TO EVERY ______ , HELPING CONTROL AND REGULATE EACH MUSCLE’S FUNCTION
MUSCLE
THE MUSCULAR SYSTEM MOVES THE :
- BONES OF THE SKELETAL SYSTEM
- FOOD THROUGH DIGESTIVE SYSTEM
- BLOOD THROUGH THE CIRCULATORY SYSTEM
- FLUIDS THROUGH THE EXCRETORY SYSTEM
WHAT ARE THE THREE MAIN TYPES OF MUSCLE TISSUE
- SKELETAL
- SMOOTH
- CARDIAC
SKELETAL MUSCLES ATTACH AND MOVE BONES BY _______ AND ________ IN RESPONSE TO VOLUNTARY MESSEGES FROM THE NERVOUS SYSTEM
CONTRACTING AND RELAXING
SKELETAL MUSCLE TISSUE IS COMPOSED OF LONG CELLS CALLED __________ THAT HAVE A STRIATED APPEARANCE
MUSCLE FIBERS
MUSCLE FIBERS ARE ORGANIZED BY ________ AND INNERVATED BY ___________
-BLOOD VESSELS
-MOTOR NEURONS
SKELETAL MUSCLES CONSISTS OF DENSELY PACKED GROUPS OF HUGELY ELONGATED CELLS KNOWN AS ______
MYOFIBERS
WHAT IS THE SIZE OF MYOFIBERS
2-3 CENTIMETERS LONG AND 0.05 MILLIMETERS IN DIAMETER
THESE CONTAIN THICK AND THIN MYOFILAMENTS MADE UP MAINLY OF PROTEINS ACTIN AND MYOSIN
MYOFIBRILS
SKELETAL MUSCLES ATTACH TO BONES BY ______ AND ENABLE _________
-TENDONS
-MOVEMENT
