461. Excessive stimulation of vagus nerve in humans may lead to

A Hoarse voice
B Peptic ulcers
C Efficient digestion of proteins
D Irregular contractions of diaphragm
Answer :   Peptic ulcers
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462. Insulin differs from growth hormone in that it

A stimulates lipoprotein lipase in vicinity of fat cells
B increases the transport of amino acids across the cell membranes of muscles
C increases mRNA/ribosome acitivity
D stimulates hormone sensitive lipase in fat cells
Answer :   stimulates hormone sensitive lipase in fat cells
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463. The junction between the axon of one of one neuron and the dendrite of the next is called

A A joint
B A synapse
C Constant bridge
D Junction point
Answer :   A synapse
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464. How many lobes are present in cerebellum

A 1
B 3
C 5
D 7
Answer :   3
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465. The most important component of the oral contraceptive pill is

A growth hormone
B thyroxine
C luteinizing hormone
D progesterone
Answer :   progesterone
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466. Which of the following does not secrete any hormone

A Testes
B Spleen
C Stomach
D Intestin
Answer :   Spleen
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467. Cavity in spinal cord is called

A Enterocoel
B Blastocoel
C Schizocoel
D Neurocoel
Answer :   Neurocoel
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468. The structure and amino acid sequence of the hormone insulin was discovered by

A Benting
B Sanger
C Pauling
D Cullen
Answer :   Sanger
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469. In human , autonomic nervous system is composed of

A Sympathetic and parasympathetic nerves
B Cranial and spinal nerves
C Brain and spinal nerves
D Medullated and non-medullated nerves
Answer :   Sympathetic and parasympathetic nerves
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470. The hormone that controls the level of calcium and phosphorus in the blood is secreted by

A Thyroid
B Parathyroid
C Pituitary
D Thymus
Answer :   Parathyroid
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