Homework Help: HELP Plz - Introduction to Human Anatomy and Physi

Posted by angel on Sunday, January 31, 2010 at 12:52am.

Situation: You need to step up on a step to reach an object on a high shelf.

Instructions: (Part one) Trace the nerve impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up one step. Include the steps involved in transmitting the impulse from one neuron to another and then to the muscle fiber. Include in this the steps involved in the actual muscle fiber contraction – Sliding filament theory. (Part two) Specify which muscles are pulling on which bones and what types of joints are involved in stepping up on the step. Next, specify which muscles are pulling on which bones and what types of joints are involved to reach up above your head to the shelf.

HELP Plz - Introduction to Human Anatomy and Physi - SraJMcGin, Sunday, January 31, 2010 at 9:27am
There may be something here:

http://www.google.com/search?q=trace+nerve+impulse+on+stepping+up+a+step&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Sra
HELP Plz - Introduction to Human Anatomy and Physi - Excellent Tutor, Wednesday, May 5, 2010 at 8:26pm
Brain send the message via nerve impulses involving neurons which use the neuro-transmitter Acetylcholine
Acetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction

A+ Answer. 100% Correct. Download the complete answer from following web link
w w w. tinyurl . c o m/stepuponstep

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