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Muscle contraction

muscle contraction

A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.


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Biology Experts, Help!

... loss. No iron etc -> anemia. 4. blocking calcium channels inhibits muscle contraction. If the patient is too sensitive to the drug or the dose is too big then his heart ...

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by MrMistery
Sat Jun 13, 2009 11:29 am
 
Forum: Human Biology
Topic: Biology Experts, Help!
Replies: 5
Views: 298

peripheral nervous system

... autonomic nervous system. I'm more confused about involuntary skeletal muscle contraction during withdrawal reflex. That I would say is also an autonomic innervation (called ...

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by kk
Tue Mar 24, 2009 11:40 am
 
Forum: Physiology
Topic: peripheral nervous system
Replies: 3
Views: 1566

peripheral nervous system

... the stimulus from outside of the organism and ALWAYS controls skeletal muscles; autonomic nervous system ALWAYS receives stimuli from inside of ... in a muscle spindle of a skeletal muscle and motor neurons triggering contraction of a skeletal muscle are parts of the somatic nervous system ...

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by kk
Fri Mar 20, 2009 12:38 pm
 
Forum: Physiology
Topic: peripheral nervous system
Replies: 3
Views: 1566

Help! Cutting the vagus nerve and force of contraction

If contractile strength is independent of muscle stretch and EDV ,but rather controlled by bloodborne chemicals (epinephrine, ... increase, reflecting inherent rate of SA note (100beats/min), but the force of contraction will remain the same? Am I on the right path??

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by Vangeek
Fri Feb 13, 2009 7:29 pm
 
Forum: Physiology
Topic: Help! Cutting the vagus nerve and force of contraction
Replies: 3
Views: 898

Activation of myosin?

Complete question was this: Every muscle contraction involved the interaction of myosin and actin filaments. This interaction can occur only after ...

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by Vangeek
Wed Feb 11, 2009 5:10 am
 
Forum: Cell Biology
Topic: Activation of myosin?
Replies: 2
Views: 522
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