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671914
Organ Bath 1
Descrição
Degree Human Physiology (Bladder) Mapa Mental sobre Organ Bath 1, criado por David Bone em 25-03-2014.
Sem etiquetas
bladder
human physiology
human physiology
bladder
degree
Mapa Mental por
David Bone
, atualizado more than 1 year ago
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Criado por
David Bone
mais de 10 anos atrás
15
0
0
Resumo de Recurso
Organ Bath 1
Smooth Muscle
Spontaneous contractile activity
Contracts Slowly
Not Prone to muscle fatigue
Ideal for sphincter muscles
Destrusor
Contraction mediated by muscarinic receptors
Stimulation by acetlycholine
Inhibited by antagonist atropine
Tissue
Maintained in an aerated physiological solution
Respond to chemical,electrical,mechanical stimui
continue for many hours for application of many drugs.
Clear quantitive relationship between tissue response and applied drug contraction
Mesurment recorded by force displacement transducter.
Set up
Equiptment
Power lab 26T
Micropositioner
Force Transducer
Calibrated to give more meaningful units of grams
Residual offset voltage needs to be corrected
Ring Stand
Tissue Preparation
2cm strip of bladder
Keep tissue moist with phosphate buffer
Additional 95% O2
5% CO2
Attach string to each end
Attach to mounting hook, then ring stand
Force Tranducer at 1-1.5g tension
Submerge in sailine
Allow 30minutes to equilibrate
Acetylcholine
Stock Solution of 10-2 M
Serially dilution in 10ml saline (Tyrode Ringer)
To give: 10-3.10-4 and 10-5
Drug Addition Cycle
Wait 3 Minutes to record any response
Empty bath and wash the tissue 2 times after recording
Wait additional 3 mins before adding next concentration of drug
Acetylcholine Anatgonist
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