Sertoli cells
Leydig cells
Crypt cells
Semniferous tubules
A. Sertoli cells
40%
80%
20%
50%
Chorion
Zona pellucida
Corona radiata
Vitelline membrane
Scrotum
Ericardium
Placenta
Amniotic sac
Pituitary
Ovary
Placenta
Uterus
Vagina
Fallopian tube
Uterus
Body cavity
Recessive character carried by y-chromosome
Dominant character carried by y-chromosome
Dominant trait carried by x-chromosome
Recessive trait carried by x-chromosome
Trisomy of 21st chromosome
Fertilization of an xx egg by a normal y-bearing sperm
Loss of half of the short arm of chromosome 5
Loss of half of the long arm of chromosome 5
At the end of proliferative phase
At the beginning of proliferative phase
Before the end of secretary phase
In the middle of secretary phase
Cystic fibrosis
Thalassaemia
Haemophilia
Cretinism
Hysterectomy
Vasectomy
Castration
Circumcision
Fertilization -> zygote -> cleavage -> morula -> blastula -> gastrula
Fertilization -> zygote -> cleavage -> blastula -> morula -> gastrula
Fertilization -> zygote -> cleavage -> morula -> blastula -> gastrula
Fertilization -> zygote -> gastrulae -> morula -> blastula -> cleavage
Prevent ovulation
Suppress sperm motility
Prevents implantation of embryo
Kills sperms
40 to 300 million per ml
10 to 20 million per ml
< 10 million per ml
200 million per ml
23
46
18
20
Sertoli cells
Leydig cells
Crypt cells
Semniferous tubules
25 % abnormal forms
60% motility after 3 hours
Mild Alkaline reaction
Sperm count of 17 million per ml.
Embryo
Fertilized ovum
Blastopore
Blastocyst
Day 1
Day 5
Day 14
Day 28
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
1.5 -3.0 mm/min
1.5 - 3.0 cm/min
1.5 -3.0 m/min
1.5 -3.0 m/hr
Ovary
Uterus
Fallopian tube ampulla
Cervix
Tubal block
Preventing spermatogenesis
Forming a barrier between the ovum and sperm
Suppressing ovulation
Prolactin
LH
FSH
Oxytocin
Gamete intra fallopian transfer
Invitro fertilization
Intra uterine insemination
Zygote intra fallopian transfer
Cervical mucus to become stretchy and clear
Less cervical mucus production
Tenderness of cervix
Slight vaginal bleeding
Capacitor
Head
Corona
Acrosome
2°c above body temperature
2° c below body temperature
4°c above body temperature
4° c below body temperature
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
Chorion
Allantois
Yolk sac
Amnion
The menstrual cycle in all women is a 28 day cycle
Ovulation always occurs at the midpoint of the menstrual cycle
A high body temperature indicates ovulation is occurring
The menstrual cycle is an endocrine cycle regulating reproductive physiological changes