extracellular calcium

decreased extracellular calcium leads to 

a.decreased excitability 

b.decreased membrane stability'

c.increased need for depolarization

d.none of the above

answer:a

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nervous system mock test

1. Nervous system » Online quiz software

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nerve and muscle cell physiology

1. Nerve and muscle physiology » Online test maker

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Absorption of vitamin D in intestine is helped by

a) Calcium 

b) Pottassium 

c) Magnesin 

d) Iron 

[Ans (a)]

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Salivary secretion

Salivary secretion does all except

a) Lubrication 

b) Taste sensation  

c)Digestion of carbohydrates 

d) Digestion of proteins 

[Ans (d)]

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Action potential

Action potential is

a) Decremental phenomenon 

b) Doesn’t obey all or none phenomenon 

c) K+ goes from ECF to ICF 

d) Threshold stimulus is required 

[Ans (d)]

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Function of cochlea

 Function of cochlea is

a)Auditory function 

b) Nerve deafness 

c) Basilar membrane is tuned 

d) Equilibruin is disturbed  

(ans :a)

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Normal testicular development requires

Normal testicular development requires


a) Xy  


b) XX 


c) Y chromosome 


d) X chromosome  


[Ans (a)]   

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PR interaval

PR interaval is

a) 0.12- 0.16 seconds 

b) 0.3 – 0.4 sec. 

c) 0.6 – 0.8 sec. 

d) 0.12 – 4 sec. 

[Ans (a)]

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Absorption of H2O in PCT is characteristic

Absorption of H₂O in PCT is characteristic by all except

a) Vasopressin dependent 

b) 60% of water is absorbed 

c) Depends on solutes 

d) Vasopressin independent  

[Ans (a)]

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Frequency of Alpha waves

 Frequency of Alpha waves is

a) 4-6 

b) > 13 

c) 8-13 

d) 2-4 

[Ans (c)]

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Avoiding response

Avoiding response is due to

a) Ispilateral frontal lobe lesions 

b) Contra lateral frontal lobe lesions 

c) Ipsilateral parietal lobe lesions 

d) Contralateral parietal lobe lesions 

[Ans (b)]

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Inability to understand, speak

Inability to understand, speak or read is

a) Dyslexia 

b) Aphasia 

c) Disconnection syndrome 

d) Ataxia 

[Ans (a)] 

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Anabolic hormones

Anabolic hormones are all except

a) Cortisol 

b) Testosterone 

c) Growth Hormone 

d) Insulin 

[Ans (a)]

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Cerebellar Ataxia is characterized

 Cerebellar Ataxia is characterized by all except

a) Resting tremor 

b) Dysdiadochokinesis 

c) Ataxia 

d) Hypotonia 

[Ans (a)]

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Posterior pituitary hormones are

a) ADH and Oxytocin 

b) TRH and FSH 

c) Vasopressin and CRH 

d) Oxyticin and ACTH 

[Ans (a)]

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Parasympathetic stimulation of tissues

Parasympathetic stimulation of tissues in walls of bronchioles causes

a) Bronchoconstriction 

b) Bronchodilation 

c) Increased blood flow 

d) Dilatation of alveoli.

 [Ans (a)]

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kidney

Maximum absorption of water takes place in:

A. Proximal convoluted tubule

B. Distal convoluted tubule

C. Collecting duct

D. Loop of Henle

Ans. A

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hyperparathyroidism

Secondary hyperparathyroidism due to vitamin D deficiency shows:

A. Hypocalcemia

B. Hypercalcemia

C. Hypophosphatemia

D. Hyperphosphatemia

Ans. C

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blood pressure

Which is true about measurement of BP with sphygmomanometer versus

intraarterial pressure measurements:

A. Less than intravascular pressure

B. More than intravascular pressure

C. Equal to intravascular pressure

D. Depends upon blood flow

Ans. B

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