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New cases in Pous 2064, HIV = 175, AIDS = 26, Death = 2. HIV rate is very high in Housewives than sex workers in Nepal ! ! ! HIV status in Nepal till 2005: Total Adult=70000, Adult Prevalence (15-49)=0.55%, Number of Women (15-49) LWHA=15,310 (22%), HIV Prevalence rate in IDUs=32.7%, HIV prevalence rate in sex worker=3.8%, HIV prevalence rate in client of SW=2.1%. The latest U.N. report shows that 65 million people have been infected with HIV since it was first identified 25 years ago. Twenty five million people have died of AIDS.

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Reload this Page Physiology And Viva Questions
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Physiology And Viva Questions - 15-02-2007, 12:16 AM
What are the characteristics of a nerve fibre ?

Excitability
conductivity
threshold stimulus
all or none law
accommodation


What are receptors?
Transducers that convert the various forms of energy in environment to action potential.


What are the types of receptors ?
Tonic and phasic


What are the properies of receptors?
specificity
adaptation


What is rheobase and utilization time?
Weakest current which can excite a tissue if allowed to flow through it for and an adequate time .
The time for which the current must be applied is called utilization time .


What are the properties of a synapse ?
Exicitatory post synaptic potential
Inhibitory post synaptic potential



What are the types of synapses ?
Axosomatic
Axodendritic
Dendrodendritic
Axoaxonal
Neuromuscular junction


Differentiate between Aortic and Carotid sinus and the body?
Aortic and carotid sinus : baroreceptor
Aortic and carotid body: mechanoreceptor


What are the important zones of a neuron?
Receptor zone
Axon hillock.....where action potential is generated
Axon
Nerve ending or axon telodendria or terminal buttons



What are the properties of heart?
ELECTRICAL
excitability
auto-rhythmicity
conductivity

MECHANICAL
contractility
all or none law
refractory period



Best of luck.
-Suman

better heart 4 better nepal
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