Selective accumulation of iodine occurs in
liver
thymus
spleen
thyroid
Correct Answer :
D. thyroid
Related Questions
At the time of puberty the hormone that triggers sexual characters in male is
adrenalin
testosterone
insulin
thyroxin
Estrogen is secreted by cells of
theca interna
theca externa
theca interna cells of developing Graffian follicles
corpus luteum
The fight or flight response in the event of danger, is chiefly effected by
glucocorticoids
mineralocorticoids
epinephrine and norepinephrine
glucocorticoids, epinephrine
Disease not caused by malfunctioning of thyroid is
acromegaly
cretinism
myxoedema
goitre
In the blood calcium and phosphate levels are controlled by
thyroid
parathyroid
adrenal
both (a) and (b)
The activity of Leydig cells is governed by a pituitary hormone abbreviated as
HCG
ACTH
FSH
ICSH
Pituitary gland is under the control of
pineal
hypothalamus
adrenals
none of these
Animals that are well known to use pheromones are
Centipedes
Hydra
Pigeons
Ants
Androgens are secreted from
Leydig cells and placenta
Testis and adrenal cortex
Adenohypophysis and testis
Leydig cels and adrenal cortex
A decrease in level of oestrogen and progesterone causes
loss of endometrium
growth and dilation of metridium
release of ova from ovaries
constriction of uterine blood vessels leading to sloughing of uterine epithelium
Acromegaly is a disease in which the bones develop irregularly, which is due to over secretion of
STH
ACTH
GTH
GH
Which of the following is homologous with the oviduct of frog ?
Uterus
Vagina
Fallopian tube
All of these
Which hormone promotes persistence of larval characters ?
Juvenile hormone
Thyroxin
Insulin
Ecdysone
Which endocrine gland stores its secretion in an extracellular space before discharging it into the blood ?
Thyroid
Pancreas
Adrenal
Testis
Gonadotropic hormones are produced in
posterior part of thyroid
adrenal cortex
adenohypophysis of pitiutary
interstitial cells of testis
At the time of birth, oxytocin acts on uterus by
stimulating the smooth muscles of uterus to produce forceful contractions
detaching foetal tissues from the uterus
increasing the movement of foetus
producing rhythmic movements in the smooth muscles of uterus
Deficiency of iodine in diet leads to
enlargment of hands and feet
enlargement of liver
enlargement of bones
enlargement of neck region
Due to hyposecretion from pituitary, the disease is
goitre
encephalitis
diabetes incipidus
diabetes mellitus
Addison's disease is caused by under secretion of
Adrenalin
Cortin
Insulin
ACTH
Symptoms such as softening of bones which are easily bent or fractured are mainly due to
hypothyroidism
hyperthyroidism
hypoparathyroidism
hyperparathyroidism
In the ovary, the progesterone and estrogen are secreted by
corpus callosum
corpus albicans
corpus luteum and Graffian follicles
cells of Graffian follicles
Hyper secretion of adrenal cortex causes
Addison's disease
Down's syndrome
Cushing's syndrome
Acromegaly
In the male, testosterone exerts profound effects on
development of secondary sex characters
skeletal muscle to increase in size
baldness
all of these
A hormone, pressure of which in blood or urine serves as pregnancy tests is
HCG
Progesterone
LH
Placental gonadotrophin
Islets of Langerhans secrete a hormone which controls diabetes mellitus :
Insulin
Rennin
Ptyalin
HQ
Function of cholecystokinin is to
contract gall bladder
stimulate bile secretion
stimulate digestion
decrease bile secretion
The expulsion of milk from the breast during sucking by the child is brought about by
prolactin
oxytocin
vasopressin
estrogen and progesterone
Diabetes mellitus is due to deficiency of
insulin
glucagon
trypsin
ADH
Hyperglycemia is an indication of mal-functining of
thyroid
liver
islets of Langerhans
adrenals
Hormones which are produced by neurons are
epinephrine and noepinephrine
melatonin and serotonin
oxytocin and vasopressin
all of these