Dictionary » C » Contract



1. To shorten; to become reduced in size; in the case of muscle, either to shorten or to undergo an increase in tension.

2. To acquire by contagion or infection.

3. An explicit bilateral commitment by psychotherapist and patient to a defined course of action to attain the goal of the psychotherapy.

Origin: L. Con-traho, pp. -tractus, to draw together

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How does blood is circulated in amphibians?

In amphibians like frog,during blood circulation 2 atria contract and pump blood into single ventricle(heart is 3 chamberd).In the ventricle mixed blood is formed.How does mixed blood is circulated to various body parts via aorta?

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by kumar985
Fri Jul 20, 2012 4:29 pm
Forum: Physiology
Topic: How does blood is circulated in amphibians?
Replies: 4
Views: 5656

Growth on metal pot?!

... with out testing in a lab or discovering it is. I may have exaggerated a bit too far, I mean no harm to JorgeLobo and I would never construct such contract, for humans are more equal than other organisms. I now apologize to JorgeLobo. I am sorry for my rudeness, and hope all is forgiven.

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by WillyTNo
Tue Jun 05, 2012 11:36 pm
Forum: Microbiology
Topic: Growth on metal pot?!
Replies: 24
Views: 7692


this is just poor kitchne hygiene. If you call letting your pots sit over night in soap and water poor kitchen hygiene, then you are showing me that soap could also be a variable to configuring its growth when I go to the lab. Yet it's valid that poor kitchen hygiene was at play due to my concern t...

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by WillyTNo
Tue Jun 05, 2012 7:03 pm
Forum: Microbiology
Topic: Growth on metal pot?!
Replies: 24
Views: 7692

Nervous system

... than normal in the synapse? What effect does this have? 4.In a classic experiment, the strength of a neural stimulus and the resulting muscle contraction are compared. A single motor neuron that synapses with a muscle fibre is suspended. The other end of the muscle fibre is attached to a mass. ...

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by Catherine89
Sun Feb 05, 2012 7:22 pm
Forum: Human Biology
Topic: Nervous system
Replies: 0
Views: 3137

Re: Theories - Origin of Life

... pathways leading to different tissues in this process of differentiation? The offspring of one cell will eventually gain the ability to expand and contract as part of a muscle, while another will take on a rigid form with a specialized ability to transmit electrical signals etc etc. In the human ...

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by scottie
Sun Jun 19, 2011 10:55 am
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755242
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