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Tut 1, regulation of gastrointestinal tract function (nervous regulation), physiology

 Lecture video 



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Mcq 

1- RMP equals

a/ -15

b/ 0

c/ -70

d/ -55


2- The axon of the neuron of enteric plexus

a/ Afferent

b/ Efferent

c/ Center

d/ Effector organ


3-Replarization in spike potentials is due to

a/ Entry of Ca++

b/ Cl- efflux

c/ K+ efflux

d/ Na+ efflux 


4- cell body of the neuron of enteric plexus

a/ Afferent

b/ Efferent

c/ Center

d/ Effector organ


5- Excitability is increased by all of the following except

a/ Stretch of the muscle 

b/ Catecholamines

c/ Parasympathetic stimulation

d/ stimulation with ach


6- which of the following decrease excitability

a/ Parasympathetic stimulation

b/ CCK

c/ Stretch of the muscle

d/ secretin H


7- the dendrites of the neuron of enteric plexus


a/ Afferent

b/ Efferent

c/ Center

d/ Effector organ


8- sympathetic stimulation is/have generally

a/ Stimulatory

b/ Inhibitory

c/ No effect on GIT

 True or false

9- -slow wave potential is a true action potential

True

False



10- parasympathetic stimulation causes relaxation of sphincters of GIT 


True

False


11- spike potentials cause muscle contraction

True

False


12-GIP increases excitability


True

False

Mcq Answers 

1-d 

 2-b 

3-c 

4-c

 5-b 

6-d 

 7-a

  8-b

True or false answers 

9- false

 10-true

11-true

12-false
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