Basic Biochemical Concepts (Msq Drill 201)

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1. In which lever do you have the fulcrum located in between the muscle contraction and the resistance?
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Basic Biochemical Concepts (Msq Drill 201) - Quiz

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2. In a third class lever, is the effort and load on one side of the fulcrum or they are on either side of the fulcrum?
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3. Are joints typically fulcrums?
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4.
Does this lever favor speed or force?
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5. So, if the fulcrum is moved closer to the load or resistance in a 1st class lever then force has advantage over speed?
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6.

Increasing the distance of the long vector by increasing the weight of the ball and thus moving the center of gravity will result in:
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7. This is a 1st, 2nd or 3rd class lever?
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8. A screwdriver being used to pry open the lid of a paint can. Do you move the fulcrum below cler to the effort or closer to the load?

A)




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9. Which of the following accurately describes a 2nd class lever?
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10.
What is this lever?
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11.
This is a first class lever in which the fulcrum has been moved closer to the muscle contraction. This results in:

Explanation

Catapult: Quick release, long lever arm

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12.
If the ball in the hand is replaced with a bigger ball that is twice the weight of the original ball, does the center of gravity shift towards or away from the original force M?

Explanation

Because the center of gravity shifts away from the original force M, the new distance must be added to the original vector.

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13.
Name the lever:
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14. Trying to pry open a lid of a paint can with a screwdriver illustrates a 1st class lever in which force is favored or speed is favored?
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15. 2nd class levers ALWAYS favor:
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16. 3rd class levers mostly favor force or speed?
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17. Trying to pry open a paint can with a screw driver is an example of a 1st class lever in which the fulcrum has been moved closer or farther away from the muscle contraction?
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18. An example of a class 1 lever is that of the _________ muscles offsetting the weight of the front of the head and the fulcrum being the head on the cervical vertebrae.
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19. If you move the fulcrum close to the muscle in a 1st class lever, does force have advantage over speed or does speed have advantage over force?
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20.  What is the most common type of lever in the human body?
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21. Is more force allocated to stabilizing the elbow or to flexing the elbow when the brachialis contracts at a lower degree of flexion
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22.


Is this a 2nd or 3rd class lever?
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23. 2nd class levers are very common in the human body. True or false?
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24.

This is a 2nd class lever. When comparing this to the human body, the effort is equivalent to:
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25. Which of the three forces that make up the muscular force is responsible for stabilizing the joint?
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26. The most efficient joint angle to use the brachialis is at
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27. The force of the brachialis is shared between which two elements?

Explanation

i.e the tangential force and the stabilization force

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28.

In the human being which of the following can be regarded as the load?
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29. At 30 degrees of flexion what are the three subcomponents of muscle forces
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In which lever do you have the fulcrum located in between the muscle...
In a third class lever, is the effort and load on one side of the...
Are joints typically fulcrums?
Does this lever favor speed or force?
So, if the fulcrum is moved closer to the load or resistance in a 1st...
Increasing the distance of the long vector by increasing the weight of...
This is a 1st, 2nd or 3rd class lever?
A screwdriver being used to pry open the lid of a paint can. Do you...
Which of the following accurately describes a 2nd class lever?
What is this lever?
This is a first class lever in which the fulcrum has been moved closer...
If the ball in the hand is replaced with a bigger ball that is twice...
Name the lever:
Trying to pry open a lid of a paint can with a screwdriver illustrates...
2nd class levers ALWAYS favor:
3rd class levers mostly favor force or speed?
Trying to pry open a paint can with a screw driver is an example of a...
An example of a class 1 lever is that of the _________ muscles...
If you move the fulcrum close to the muscle in a 1st class lever, does...
 What is the most common type of lever in the human body?
Is more force allocated to stabilizing the elbow or to flexing the...
Is this a 2nd or 3rd class lever?
2nd class levers are very common in the human body. True or false?
This is a 2nd class lever. When comparing this to the human body, the...
Which of the three forces that make up the muscular force is...
The most efficient joint angle to use the brachialis is at
The force of the brachialis is shared between which two elements?
In the human being which of the following can be regarded as the load?
At 30 degrees of flexion what are the three subcomponents of muscle...
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