Muscles

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rosebud
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Muscles

Post by rosebud » Wed Apr 12, 2006 9:17 am

Q. Outline the sequence of events that occurs between the stretching of muscle spindles and the increased contraction of the brachialis muscle.

(8 marks)

:D

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canalon
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Post by canalon » Wed Apr 12, 2006 3:23 pm

Do your homework!

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rosebud
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Post by rosebud » Wed Apr 12, 2006 6:12 pm

I'm not asking for an answer. I just want some ideas that I could include. I already have a rough idea of what to put.

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canalon
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Post by canalon » Wed Apr 12, 2006 9:25 pm

Not that it is exactly clear from your question, he!

What ideas do you have? There will probably be plenty of people to complete any missing step.
Patrick

Science has proof without any certainty. Creationists have certainty without
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Post by rosebud » Thu Apr 13, 2006 9:15 am

: Muscle spindles are specialised fibres and they act as receptors to the amount of stretch in a muscle.
: As they become stretched , spindles send impulses via sensory neurones to the spinal cord.
: These synapse with motor neurones that lead back to the muscles (effectors)
: At the muscles these impulses cause the brachialis muscle to contract and other muscles to relax.

: Muscle spindle reflex- one muscle contracts and the other relaxes
: The relaxed muscle is stretched and the muscle spindle is stimulated.

: Muscle spindle reflex- stretched muscle contracts and the other relaxes
: Relaxed muscle is stretched and its muscle spindle stimulated

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