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4

In the blood calcium and phosphate levels are controlled by

A. thyroid

B. parathyroid

C. adrenal

D. both (a) and (b)

Correct Answer :

D. both (a) and (b)


Related Questions

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4

A hormone, pressure of which in blood or urine serves as pregnancy tests is

A. HCG

B. Progesterone

C. LH

D. Placental gonadotrophin

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4

Which of the following hormones maintains the integrity of the uterine wall during pregnancy ?

A. Estrogen

B. Progesterone

C. Oxytocin

D. Intermedin

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4

The expulsion of milk from the breast during sucking by the child is brought about by

A. prolactin

B. oxytocin

C. vasopressin

D. estrogen and progesterone

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4

Which hormone promotes persistence of larval characters ?

A. Juvenile hormone

B. Thyroxin

C. Insulin

D. Ecdysone

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4

Deficiency of parathormone in the blood causes

A. hypokalemia

B. hyperkalemia

C. hypocalcemia

D. hypercalcaemia

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4

Throughout pregnancy the hormones which remain low in plasma are

A. FSH

B. FSH and LH

C. LH

D. Estrogen and progesterone

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4

Most contraceptive pills contain

A. estrogen + FSH

B. progesterone + LH

C. progesterone + FSH

D. oestrogen and progesterone

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4

Regulation of volume of urine is caused by

A. ADH

B. Aldosterone

C. Both (a) and (b)

D. ADH, ldosterone and testosterone

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4

The activity of Leydig cells is governed by a pituitary hormone abbreviated as

A. HCG

B. ACTH

C. FSH

D. ICSH

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4

M.S.H produced by the pars intermedia of pitiutary causes in lower vertebrates

A. darkening of skin

B. light colouration of skin

C. both (a) and (b)

D. none of these

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4

Which of the following will be least effected if the pituitary gland of an adult rat is removed?

A. Adrenal

B. Adrenal medulla

C. Thyroid

D. Gonads

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4

At the time of puberty the hormone that triggers sexual characters in male is

A. adrenalin

B. testosterone

C. insulin

D. thyroxin

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4

At the time of birth, oxytocin acts on uterus by

A. stimulating the smooth muscles of uterus to produce forceful contractions

B. detaching foetal tissues from the uterus

C. increasing the movement of foetus

D. producing rhythmic movements in the smooth muscles of uterus

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4

A posterior pituitary hormone released during parturition is

A. Oxytocin

B. Vasopressin

C. ICSH

D. ACTH

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4

Animals that are well known to use pheromones are

A. Centipedes

B. Hydra

C. Pigeons

D. Ants

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4

Hormones which are produced by neurons are

A. epinephrine and noepinephrine

B. melatonin and serotonin

C. oxytocin and vasopressin

D. all of these

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4

Function of cholecystokinin is to

A. contract gall bladder

B. stimulate bile secretion

C. stimulate digestion

D. decrease bile secretion

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4

A decrease in level of oestrogen and progesterone causes

A. loss of endometrium

B. growth and dilation of metridium

C. release of ova from ovaries

D. constriction of uterine blood vessels leading to sloughing of uterine epithelium

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4

The fight or flight response in the event of danger, is chiefly effected by

A. glucocorticoids

B. mineralocorticoids

C. epinephrine and norepinephrine

D. glucocorticoids, epinephrine

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4

In the ovary, the progesterone and estrogen are secreted by

A. corpus callosum

B. corpus albicans

C. corpus luteum and Graffian follicles

D. cells of Graffian follicles

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4

Hyperglycemia is an indication of mal-functining of

A. thyroid

B. liver

C. islets of Langerhans

D. adrenals

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4

ACTH is secreted by

A. adrenal cortex

B. thyroid

C. adrenal medulla

D. pituitary

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4

New ovarian follicles will not begin to ripen as long as the blood has high level of

A. FSH

B. Progesterone

C. Estrogen

D. LH

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4

Hyper secretion of adrenal cortex causes

A. Addison's disease

B. Down's syndrome

C. Cushing's syndrome

D. Acromegaly

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4

Androgens are secreted from

A. Leydig cells and placenta

B. Testis and adrenal cortex

C. Adenohypophysis and testis

D. Leydig cels and adrenal cortex

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4

Deficiency of iodine in diet leads to

A. enlargment of hands and feet

B. enlargement of liver

C. enlargement of bones

D. enlargement of neck region

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4

In the male, testosterone exerts profound effects on

A. development of secondary sex characters

B. skeletal muscle to increase in size

C. baldness

D. all of these

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4

Which endocrine gland stores its secretion in an extracellular space before discharging it into the blood ?

A. Thyroid

B. Pancreas

C. Adrenal

D. Testis

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4

The technique of amniocentesis can be employed for the dectection of

A. Klienfelter's and Down's syndrome

B. Haemophilia and sickle cell anaemia

C. Thalassemia and myelocytic leukaemia

D. All of these

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4

Gonadotropic hormones are produced in

A. posterior part of thyroid

B. adrenal cortex

C. adenohypophysis of pitiutary

D. interstitial cells of testis