Decreased motility of sperm <40 % is known as
Azoospermia
Oligospermia
Asthenozoospermia
Necrozoospermia
Correct Answer :
C. Asthenozoospermia
Related Questions
Pregnancy test is confirmed by the presence of
Prolactin in urine
Relaxin in urine
H c g in urine
Fsh and lh in urine
Human placenta is
Endothelial
Haemochorial
Epitheliochorial
Syndesmochorial
Fimbriae of fallopian tube ...
Release ovum from graffian follicle
Cause endometrial changes for implantation
Help develop corpus luteum
Help collection of ovum after ovulation
The middle piece of the sperm contains
Protein
Nucleus
Mitochondria
Centriole
Failure of the brain to grow in the foetus may result in:
Plagiocephaly
Craniostenosis
Anencephaly
Microcephaly
What is the name of the inner lining of the uterus?
Myometrium
Endometrium
Epithelium
Endothelium
Part of sperm that passes into ovum is
Tail
Acrosome
Head
Head, neck and middle piece
Human eggs are
Mesolecithel
Microlecithel
Macrolecithel
Alecithel
Cell division that occurs in zygote is called
meiosis
Mitosis
Cleavage
Differentiation
Highly sophisticated procedure of injecting sperm directly into the ovum is
GIFT
ZIFT
ICSI
IUI
Human embryo is referred to as fetus from beginning of
1st month of pregnancy
2nd month of pregnancy
3rd month of pregnancy
4th month of pregnancy
Amniotic fluid protects the foetus from ...
Shock
Abortion
Degeneration
Disease
What are the chances of a normal fertile couple having a baby in one year?
40%
80%
20%
50%
Villi of human placenta develop from ..
Chorion
Allantois
Yolk sac
Amnion
Embryo at 16-celled stage is called ...
Morula
Blastula
Blastomere
Gastrula
Combined Oral contraceptives prevent pregnancy by
Tubal block
Preventing spermatogenesis
Forming a barrier between the ovum and sperm
Suppressing ovulation
Thick layer which surrounds the ovum is ...
Zona pellucida
Membrana granulosa
Corona radiata
Theca interna
The hormone responsible for enlargement of mammary glands at puberty is
Progesterone
Oestrogen
Testosterone
Oxytocin
Total numbers of ovum released in the life time of a woman is approximately
40
400
4000
20000
What happens during fertilization when many sperms reach close to ovum ....
Cells of corona radiata trap all the sperm except one
Only two sperms nearest to ovum penetrate zona pellucida
Secretion of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida
All sperms except the one nearest to ovum lose their tails
Which cells provide nutrition to the sperms?
Sertoli cells
Leydig cells
Crypt cells
Semniferous tubules
The surgical method of contraception in males
Hysterectomy
Vasectomy
Castration
Circumcision
In a 28 day menstrual cycle, ovulation occurs on ...
Day 1
Day 5
Day 14
Day 28
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
Third phase of embryo development is ...
Cleavage
Fertilization
Gametogenesis
Gastrulation
Mammary glands are modification of ...
Sebaceous glands
Sweat glands
Meibomian glands
None of the above
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
Epididymis is ...
A long coiled tube between vasa efferentia and vas deferens
Network of sinuses between seminiferous tubules and efferentia
Connection between vas deferens and seminal vesicle
Intermediate structure between the testis and vasa efferentia
Which one of the following is produced early in the life of a human female?
Relaxin
Oxytocin
Prolactin
Progesterone
Number of chromosomes in secondary oocyte stage in humans is ...
23
46
18
20