In the male, testosterone exerts profound effects on
development of secondary sex characters
skeletal muscle to increase in size
baldness
all of these
Correct Answer :
A. development of secondary sex characters
Related Questions
The spermatogenesis in mammalian testis is conrolled by
follicle stimulating hormone (FSH)
luteininzing hormone (LH)
ICSH
LH and ICSH
The glands which pour their secretion directly into blood are tamed as
endocrine glands
exocrine glands
holocrine glands
apocrine glands
Which hormone promotes persistence of larval characters ?
Juvenile hormone
Thyroxin
Insulin
Ecdysone
Thyroxine has direct effect on
blood flow \
cellular respiration
rate of excretion
rate of digestion
Androgens are secreted from
Leydig cells and placenta
Testis and adrenal cortex
Adenohypophysis and testis
Leydig cels and adrenal cortex
New ovarian follicles will not begin to ripen as long as the blood has high level of
FSH
Progesterone
Estrogen
LH
In the ovary, the progesterone and estrogen are secreted by
corpus callosum
corpus albicans
corpus luteum and Graffian follicles
cells of Graffian follicles
Disease not caused by malfunctioning of thyroid is
acromegaly
cretinism
myxoedema
goitre
ACTH is secreted by
adrenal cortex
thyroid
adrenal medulla
pituitary
A posterior pituitary hormone released during parturition is
Oxytocin
Vasopressin
ICSH
ACTH
Corpus luteum is formed by
germinal cells
follicle cells
ovum
vitelline membrane
One of the endocrine glands is known as master gland:
Thyroid
Pituitary
Parathyroid
Adrenal
Selective accumulation of iodine occurs in
liver
thymus
spleen
thyroid
Hyper secretion of adrenal cortex causes
Addison's disease
Down's syndrome
Cushing's syndrome
Acromegaly
Which disease is caused by the deficiency of thyroxine in the adult ?
Diabetes insipidus
Diabetes mellitus
Myxoedema
Exopthalmic goitre
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
At the time of puberty the hormone that triggers sexual characters in male is
adrenalin
testosterone
insulin
thyroxin
Which of the following is homologous with the oviduct of frog ?
Uterus
Vagina
Fallopian tube
All of these
The activity of Leydig cells is governed by a pituitary hormone abbreviated as
HCG
ACTH
FSH
ICSH
Which endocrine gland stores its secretion in an extracellular space before discharging it into the blood ?
Thyroid
Pancreas
Adrenal
Testis
A hormone, pressure of which in blood or urine serves as pregnancy tests is
HCG
Progesterone
LH
Placental gonadotrophin
Regulation of volume of urine is caused by
ADH
Aldosterone
Both (a) and (b)
ADH, ldosterone and testosterone
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
Function of cholecystokinin is to
contract gall bladder
stimulate bile secretion
stimulate digestion
decrease bile secretion
Estrogen is secreted by cells of
theca interna
theca externa
theca interna cells of developing Graffian follicles
corpus luteum
Hormones which are produced by neurons are
epinephrine and noepinephrine
melatonin and serotonin
oxytocin and vasopressin
all of these
Deficiency of iodine in diet leads to
enlargment of hands and feet
enlargement of liver
enlargement of bones
enlargement of neck region
Deficiency of parathormone in the blood causes
hypokalemia
hyperkalemia
hypocalcemia
hypercalcaemia
Male reproductive functions are controlled by
FSH
Testosterone
FSH and LH
All of these