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What will happen if paratharmone is over secreted from parathyroid gland?
a) Calcium is released from the bones
b) bones gets soften and fragile
c) calcium level in blood increases    
d) all of these

d

Explanation high blood calcium is called hypercalcemia which depress nervous system and causes weakness in muscles.



Which hormone do you expect to be the cause of kidney stone due to hypercalcemia?
a) thyroxin                  
b) calcitonin
c) TSH                        
d) paratharmone

d

Explanation high level of paratharmone elevated calcium level in blood which leads to the renal stone



Which of the following is antagonistic to calcitonin hormone?
a) thyroxin                  
b) paratharmone
c) adrenalin                
d) glucagon

b

Explanation antagonist means opposite in action, i.e calcitonin decreases blood calcium level while paratharmone increases it



Which of the following is antagonistic to paratharmone?
a) thyroxin                  
b) calcitonin
c) adrenalin                
d) glucagon

b

Explanation antagonist means opposite in action, i.e calcitonin decreases blood calcium level while paratharmone increases it



Undersecretion of paratharmone (hypocalcaemia) causes…….
a) increase in the excitability of neurons
b) it can lead to Tetany
c) it makes bone fragile and weak     
d) both a and b

d

Explanation in Tetany muscles remain in contracted state which is fatal if not treated



Under secretion of paratharmone causes
a) hypercalcemia        
b) hypocalcaemia
c) hperoxilaria            
d) hypo oxilaria

b

Explanation low level of blood calcium (hypocalcaemia)



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