M.S.H produced by the pars intermedia of pitiutary causes in lower vertebrates
darkening of skin
light colouration of skin
both (a) and (b)
none of these
Correct Answer :
C. both (a) and (b)
Related Questions
Function of cholecystokinin is to
contract gall bladder
stimulate bile secretion
stimulate digestion
decrease bile secretion
A hormone, pressure of which in blood or urine serves as pregnancy tests is
HCG
Progesterone
LH
Placental gonadotrophin
Which disease is caused by the deficiency of thyroxine in the adult ?
Diabetes insipidus
Diabetes mellitus
Myxoedema
Exopthalmic goitre
The fight or flight response in the event of danger, is chiefly effected by
glucocorticoids
mineralocorticoids
epinephrine and norepinephrine
glucocorticoids, epinephrine
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
Deficiency of parathormone in the blood causes
hypokalemia
hyperkalemia
hypocalcemia
hypercalcaemia
In the male, testosterone exerts profound effects on
development of secondary sex characters
skeletal muscle to increase in size
baldness
all of these
Due to hyposecretion from pituitary, the disease is
goitre
encephalitis
diabetes incipidus
diabetes mellitus
Selective accumulation of iodine occurs in
liver
thymus
spleen
thyroid
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
Islets of Langerhans secrete a hormone which controls diabetes mellitus :
Insulin
Rennin
Ptyalin
HQ
Male reproductive functions are controlled by
FSH
Testosterone
FSH and LH
All of these
M.S.H produced by the pars intermedia of pitiutary causes in lower vertebrates
darkening of skin
light colouration of skin
both (a) and (b)
none of these
Deficiency of iodine in diet leads to
enlargment of hands and feet
enlargement of liver
enlargement of bones
enlargement of neck region
The glands which pour their secretion directly into blood are tamed as
endocrine glands
exocrine glands
holocrine glands
apocrine glands
Which of the following will be least effected if the pituitary gland of an adult rat is removed?
Adrenal
Adrenal medulla
Thyroid
Gonads
The spermatogenesis in mammalian testis is conrolled by
follicle stimulating hormone (FSH)
luteininzing hormone (LH)
ICSH
LH and ICSH
The expulsion of milk from the breast during sucking by the child is brought about by
prolactin
oxytocin
vasopressin
estrogen and progesterone
Disease not caused by malfunctioning of thyroid is
acromegaly
cretinism
myxoedema
goitre
Acromegaly is a disease in which the bones develop irregularly, which is due to over secretion of
STH
ACTH
GTH
GH
At the time of puberty the hormone that triggers sexual characters in male is
adrenalin
testosterone
insulin
thyroxin
New ovarian follicles will not begin to ripen as long as the blood has high level of
FSH
Progesterone
Estrogen
LH
Corpus luteum is formed by
germinal cells
follicle cells
ovum
vitelline membrane
Addison's disease is caused by under secretion of
Adrenalin
Cortin
Insulin
ACTH
Thyroxine has direct effect on
blood flow \
cellular respiration
rate of excretion
rate of digestion
Estrogen is secreted by cells of
theca interna
theca externa
theca interna cells of developing Graffian follicles
corpus luteum
One of the endocrine glands is known as master gland:
Thyroid
Pituitary
Parathyroid
Adrenal
Hormones which are produced by neurons are
epinephrine and noepinephrine
melatonin and serotonin
oxytocin and vasopressin
all of these
Animals that are well known to use pheromones are
Centipedes
Hydra
Pigeons
Ants
The technique of amniocentesis can be employed for the dectection of
Klienfelter's and Down's syndrome
Haemophilia and sickle cell anaemia
Thalassemia and myelocytic leukaemia
All of these