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Fertilization Crossword

Horizontales
The principal event necessary for a male to engage fully in coitus is acquisition and maintenance of this
Haploid female gamete
This stage consists of the days leading up to ovulation
Oocyte surrounded by a layer of cumulus or granulosa cells
Shedding of the zona pellucida
Peripherally the balance between these and vasodilatory factors control tone of the corpora cavernosa and determines the functional state of the penis (2-words)
Does not increase as much in turgor during erection as the corpora cavernosa (2-words)
Haploid male gamete
Are involved in regulating decidual factors
About 40-50 micrometers long; the head is 5 micrometers (2-words)
This is where the sperm develop (2-words)
Along with the corpora of the clitoris, these undergo vascular engorgement during female sexual stimulation
Verticales
Is more prolonged in females than males (2-words)
Fertilization occurs within this section of the uterine tubes
The first barrier preventing access of the sperm to the oocyte plasma membrane (2-words)
Most likely to result in pregnancy when it occurs within the 3-day interval ending on the day of ovulation
Lasts an average of 4 minutes in humans
a series of processes that culminate with union of a haploid male and haploid female gamete
The rim of follicular cells which surround the oocyte at ovulation (2-words)
The membranes of both pronuclei break down and the male and female chromosomes become organizes (3-words)
Stimulates pinopode formation, increased uterine secretions, increased blood flow, and edema
Sperm-oocyte fusion
Between days 9-16 of the menstrual cycle (2-words)
As the penis becomes erect, these increase in blood volume and are drawn up towards the perineum
Surrounds the oocyte and is about 10-20 micrometers thick (2-words)
Tiny hair-like microvilli which protrude from the endometrial cells
This spends about 4-6 days travelling to the uterine cavity
Both maternal and paternal chromosomes are required for normal formation of this