Physiology 201 Exam 3 with precise detailed answers

Physiology 201 Exam 3 with precise |! |! |! |! |! |!




detailed answers |!




What do skeletal, cardiac, and smooth muscle generate? - Correct answer
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✔tension



What do muscles do to bones and how can you predict its action? - Correct
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answer ✔they pull on bones and you can predict the action based on location
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term for the place where the muscle starts on a bone and stays stationary... -
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Correct answer ✔origin
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term for the place where muscle ends on a bone and moves toward the
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origin... - Correct answer ✔insertion
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What do flexion and extension typically occur along? - Correct answer
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✔sagittal plane |!




What do abduction and adduction typically occur along? - Correct answer ✔a
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frontal plane
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term for when the insertion is anchored and the origin moves towards the
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insertion... what is an example? - Correct answer ✔reverse muscle action
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pull-ups

,term for the muscle primarily responsible for the movement... - Correct
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answer ✔agonist
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term for the muscle which opposes the action of the agonist... - Correct
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answer ✔antagonist
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term for the muscle that assists the agonist in making the same action more
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efficient... - Correct answer ✔synergist
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term for special synergists which help to prevent movement at muscle
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origin... - Correct answer ✔fixator
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What makes muscles prime movers? - Correct answer ✔they give more
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leverage or assistance |! |!




term for the weight of the object plus the arm... - Correct answer ✔load
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term for the fixed point around which the bone moves (joint)... - Correct
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answer ✔fulcrum
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term for the bone when referring to leverage... - Correct answer ✔lever
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How do muscles act to facilitate movement at the fulcrum (joint)? - Correct
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answer ✔by exerting force on the lever (bone)
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, Type of lever where fulcrum is always in the middle... - Correct answer
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✔First Class Levers
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What is an example of a first class lever inside and outside the body? -
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Correct answer ✔scissors
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joint between atlas and occipital condyles
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Type of lever where the load is always in the middle... - Correct answer
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✔Second Class Levers |! |!




What are internal and external examples of second class levers? - Correct
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answer ✔standing on toes (muscle on the back of the calf balances load in
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middle)

wheelbarrow



Type of lever where the effort is always in the middle... - Correct answer
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✔Third Class Levers |! |!




What are internal and external examples of third class levers? - Correct
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answer ✔hip, knee, shoulder, elbow
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tweezers



What are groups of muscles covered by? - Correct answer ✔deep fascia
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