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 Multiple Choice QuestionsMultiple Choice Questions

1.

Thyroid deficiency in infant leads to :

  • hypothyroidism

  • myxoedema

  • cretinism

  • thyrotoxicosis


C.

cretinism

Cretinism is caused by the deficiency of thyroid hormone in infants. Myxoedema is caused by the deficiency in adults. Graves disease or exophthalmic goitre is caused by the hypersecretion of thyroid hormone.


2.

Which of the following does not match ?

  • Pancreas - Glisson's capsule

  • Antigen - Antibody

  • Thyroid - Goitre

  • Enzyme - Substrate


A.

Pancreas - Glisson's capsule

Glisson capsule is found in liver not in pancreas. The functional unit of liver is lobule. Glisson's capsule is thin layer of connective tissue separating the lobules.


3.

The source of somatostatin is same as that of

  • thyroxine and calcitonin

  • insulin and glucagon

  • somatotropin and prolactin

  • vasopresin and oxytocin


D.

vasopresin and oxytocin

The source of somatostatin is same as that of vasopressin and oxytocin. Somatostatin is produced from hypothalamus (somatostatin neuron) and oxytocin and vasopressin are also produced in the nuclei of hypothalamus, though later they are stored and released from posterior pituitary.


4.

Mammalian prolactin is secreted by :

  • adenohypophysis

  • neurohypophysis

  • adrenal cortex

  • adrenal medulla


A.

adenohypophysis

Mammalian prolactin is secreted by adenohypophysis. ACTH or Adrenocorticotrophic hormone is secreted by adenohypophysis or anterior pituitary. 

Oxytocin is secreted by posterior pituitary or neurohypophysis.


5.

Sudoriferous glands occur in :

  • lung

  • kidney

  • skin

  • alimentary canal


C.

skin

Sudorific gland or sudoriferous glands are found in skin of mammals. These secrete sweat to cool the body.


6.

Hypersecretion of growth hormone in the period of growth lead to :

  • acromegaly

  • cushing syndrome

  • midgets

  • cretinism


A.

acromegaly

Acromegaly is caused by the hypersecretion of growth hormones or somatotrophic hormones during adult phase. This type of patient has a gorilla like appearance with huge hands and legs.

Cushing syndrome is caused by overproduction of ACTH or adrenocorticotrophic hormone.

Deficiency of growth hormone causes dwarfism. People suffering from this disease are very small (midget).

Cretinism refers to hyperthyroidism in an infant or child. It is an iodine deficiency syndrome.


7.

Moulting hormone is secreted by

  • corpora cardiacum

  • prothoracic gland

  • corpora allata

  • neurosecretory hormone


B.

prothoracic gland

Moulting hormone (ecdysone) is secreted by prothoracic gland. These glands are paired, bilateral sheet of cells in the thorax. In Periplaneta, this endocrine gland is X-shaped. This gland is stimulated by prothoracicotropic hormone. Ecdysone, by causing transformation from larval to pupal stage, initiates post embryonic growth in insects.


8.

Which of the following is both exocrine and endocrine gland

  • Liver

  • Pancreas

  • Thyroid

  • Adrenal


B.

Pancreas

Pancreas are partially exocrine and partially endocrine gland.


9.

Assertion: Diabetes insipidus is marked by excessive urination and too much thirst of water.

Reason: Anti-diuretic hormone (ADH) is secreted by the posterior lobe of pituitary gland,

  • If both Assertion and Reason are true and Reason is the correct explanation of Assertion

  • If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

  • If Assertion is true but Reason is false

  • If both Assertion and Reason are false.


B.

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

Diabetes insipidus is an uncommon disorder that causes an imbalance of water in the body. This imbalance leads to intense thirst even after drinking fluids (polydipsia), and excretion of large amounts of urine (polyuria).

Diabetes insipidus occurs when your body can't regulate how it handles fluids. Normally, your kidneys remove excess body fluids from your bloodstream. This fluid waste is temporarily stored in your bladder as urine, before you urinate.


10.

Blood calcium level can be increased by the administration of

  • glucagon

  • thyroxine

  • parathormone

  • caleitonin


C.

parathormone

Parathyroid hormones are released when the level of ca is less in blood it increases level of ca in the blood while calcitocine hormones reciprocates the effect.