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NISA [10]
3 years ago
14

Why is it important for a muscle to be attached to a fixed origin at one end and a moving insertion at the other? Discuss how th

is promotes movement, using one of the muscles you observed as an example.
Physics
1 answer:
vlabodo [156]3 years ago
6 0
Muscles function only by contracting. This makes it necessary for one end of the muscle to be fixed and the other mobile.
Take the bicep for example.
Its origin is at the shoulder and its two heads connect to the bones of the forearm, the radius and ulna.
Now, had the muscle not been fixed at one end, and contracted, it would pull both our shoulder and forearm together resulting in an ineffective movement. The desired motion is to lift the forearm (proximal and distal movement) which can only be achieved if the bicep is fixed at the shoulder and allowed to move at the forearm.
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WARRIOR [948]

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8 0
2 years ago
Which of the following statements apply to electric charges?
Gre4nikov [31]

Answer:

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Explanation:

There are only two types of electric charges. Both having own magnitude but different charge.

1. Positive charge

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When a positively charged rod is brought close to a positively charged object, the rod and the object will repel.

6 0
3 years ago
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Vitek1552 [10]

The formula that links voltage (V), resistance (R) and current intensity (I) is

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8 0
3 years ago
What is Secular Music's instrument's?​
nasty-shy [4]

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Drums, harps, recorders, and bagpipes.

Explanation:

8 0
3 years ago
For a particular type of motion, the velocity is zero but the speed is a nonzero quantity. Which statement can you make about th
masha68 [24]

Answer:

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