frequency of stimulation Correct Ans-the higher the frequency, the greater the force
isotonic contraction Correct Ans-muscle shortens because muscle tension exceeds load
isometric contraction Correct Ans-Muscle contracts but there is no movement, muscle
stays the same length
origin Correct Ans-attachment to stationary bone
Insertion Correct Ans-attachment to movable bone
lever system Correct Ans-Consists of a lever (bone), effort (muscle action), resistance
(weight of object to be moved), and fulcrum (joint).
,BIOS 252 MIDTERM EXAM WITH COMPLETE SOLUTIONS
1st class lever Correct Ans-fulcrum between effort and load
ex: head resting on spine
2nd class lever Correct Ans-the load is between the fulcrum and the effort
ex: standing on tip toes
3rd class lever Correct Ans-The effort is between the fulcrum and the load
ex: bending elbow
Agonist Correct Ans-prime mover
antagonist Correct Ans-opponent of prime mover
Synergist Correct Ans-Muscle that assists a prime mover
, BIOS 252 MIDTERM EXAM WITH COMPLETE SOLUTIONS
What are the 4 properties of muscle tissue? Correct Ans-excitability, contractility,
extensibility, elasticity
What are the types of muscular tissue? Correct Ans-skeletal, cardiac, smooth
What is the function of skeletal muscle? Correct Ans-movement of bones, posture
What is the function of cardiac muscle? Correct Ans-pump blood throughout the body
What is the function of smooth muscle? Correct Ans-contraction
What are connective tissue components? Correct Ans-epimysium, perimysium,
endomysium
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