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Contraction

Contraction

(Science: physiology) a shortening or reduction in size, in connection with muscles contraction implies shortening and/or development of tension.

Origin: L. Contractus = drawn together


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Muscle Tension

Isotonic contractions involve the muscle in a situation where equal amount of tension is being developed in the muscle throughout the exercise. The muscle develops equal tension while the muscle length changes. Such examples are ...

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by Planky
Tue Aug 23, 2011 12:26 pm
 
Forum: Physiology
Topic: Muscle Tension
Replies: 4
Views: 1629

Re: The Heart

Except for decreasing the heart rate and the force of contraction, PNS also reduces the conduction velocity of cardiac muscle fibers. Parasympathetic stimulation can also result in increased activity by glands that control bronchial secretions.

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by Dino77
Wed Aug 17, 2011 6:55 am
 
Forum: Human Biology
Topic: The Heart
Replies: 6
Views: 1002

Re: Muscle Tension

... but I don't know anything, it's not my sprcialization actually Could you please help me: Which of the following is an example of an isotonic contraction? ? 1.Pressing one hand against a wall 2.A specialized machine that works the muscle through the full range of motion 3.Bicep Curl 4.none ...

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by Nataly56
Thu Jul 14, 2011 10:49 am
 
Forum: Physiology
Topic: Muscle Tension
Replies: 4
Views: 1629

Re: Tonicity Explanation

A state of normal firmness or functional readiness of body tissues or organs; a condition of sustained partial contraction of resting or relaxed muscles. Tthe osmotic pressure or tension of a solution, as in the cells would swell or shrink depending on the tonicity of the environment. ...

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by bellyjelly
Tue Jul 12, 2011 7:17 am
 
Forum: Cell Biology
Topic: Tonicity Explanation
Replies: 10
Views: 7899

Re: characteristics of bone and blood tissue?

I am working on assignment #2. Looking for ideas on how much detail to cover for the question re: comparing regulation of contraction of skeletal w/ cardiac & smooth muscle tissue.

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by hm01
Tue Apr 19, 2011 10:27 pm
 
Forum: Human Biology
Topic: characteristics of bone and blood tissue?
Replies: 38
Views: 10811
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