Which one is not the function of human placenta
Helps co2 and excretory products pass from foetus to mother's body
Helps o2 and nutrients from mother's body enter the foetus
Secretes hormones
It protects foetus from mechanical shocks
Correct Answer :
D. It protects foetus from mechanical shocks
Related Questions
Sertoli cells are found in
Seminiferous tubules
Ovaries
Prostate gland
Semen
The functional unit of testis of man is ...
Uriniferous tubules
Malpighian tubules
Seminiferous tubules
Acini or lobules
Hormones that control the growth and maturation of graffian follicle is
FSH - LH
FSH - ICSH
ACTH - LH
GH - ADH
The three primary germ layers, ectoderm, endoderm and mesoderm are differentiated during
Blastulation
Neurulation
Gastrulation
Organogenesis
The middle piece of the sperm contains
Protein
Nucleus
Mitochondria
Centriole
Human eggs are
Mesolecithel
Microlecithel
Macrolecithel
Alecithel
Number of chromosomes in secondary oocyte stage in humans is ...
23
46
18
20
An abnormal human male phenotype involving an extra x-chromosome (xxy) is found in....
Edwards syndrome
Klinefelters syndrome
Intersex
Downs syndrome.
The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the:
Capacitor
Head
Corona
Acrosome
The most important region of the decidua for the nourishment of the conceptus is the deciduas
Frondosum
Capsularis
Parietalis
Basalis
Normal sperm count is
40 to 300 million per ml
10 to 20 million per ml
< 10 million per ml
200 million per ml
In human embryo, the digestive system develops from the
Epithelium
Mesoderm
Endoderm
Ectoderm
The embryonic stage that resembles a mulberry fruit is
Nerula
Gastrula
Morula
Blastula
In menstrual cycle the secretory phase is also known as
luteal phase and lasts for 6 days
Luteal phase and lasts for 13 days
Follicular phase and lasts for 13 days
Follicular phase and lasts for 6 days
Embryonic connective tissue is formed from ..
ectoderm
endoderm
Mesenchyme
Mesogloea
The pelvic inflammatory disease is common with which type of contraception?
Oral contraceptive pills
Diaphragms
Condoms
Intra uterine devices
Most of major organs of human embryo are formed by the
16th week of pregnancy
15th week of pregnancy
14th week of pregnancy
12th week of pregnancy
Human embryo is enclosed by a sac called
Scrotum
Ericardium
Placenta
Amniotic sac
A child's blood group is 'o'. The parent's blood groups cannot be
A AND B
A AND A
AB AND O
B AND O
Level of estrogen and progesterone are minimum at the time of
Follicular phase
Ovulation
Secretory phase
Onset of menstrual phase
Mongolian idiocy due to trisomy in 21st chromosome is known as
Downs syndrome
Turners syndrome
Klinefelters syndrome
Triple x syndrome
Failure of the brain to grow in the foetus may result in:
Plagiocephaly
Craniostenosis
Anencephaly
Microcephaly
Highly sophisticated procedure of injecting sperm directly into the ovum is
GIFT
ZIFT
ICSI
IUI
HCG, HPL and relaxin are produced in women ...
At puberty
During pregnancy
Before puberty
At menopause
Sickle cell anaemia induce to
Change of amino acid in a- chain of haemoglobin
Change of amino acid in b- chain of haemoglobin
Change of amino acid in both a and b chains of haemoglobin
Change of amino acid either a or b chains of haemoglobin
Corpus luteum secretes
Lh
Estrogen
Progesterone
Fsh
Gestation period of 280 days is calculated from time of ...
Last menstruation
Fertilization
First day of last menstruation
Ovulation
Embryo at 16-celled stage is called ...
Morula
Blastula
Blastomere
Gastrula
Secretion of testosterone is stimulated by
FSH
TSH
ICSH
ACTH
Fertilization is fusion of ..
Diploid spermatozoan with diploid ovum to form diploid zygote
Haploid spermatozoan with diploid ovum to form diploid zygote
Diploid spermatozoan with haploid ovum to form diploid zygote
Haploid spermatozoan with haploid ovum to form diploid zygote