Hormone Control
Puberty begins when this hormone starts increasing from the hypothalamus
GnRH
Testes produce these two major products
Sperm and Testosterone
Ovulation usually occurs around this day of a 28-day cycle
Day 14
Human gametes contain how many chromosomes?
23
A woman has a strong LH surge today. What event is near?
Ovulation
These two anterior pituitary hormones stimulate gonads
FSH and LH
Sperm are produced here
Seminiferous tubules
What type of oocyte is found within a mature follicle?
Meiosis creates this number of daughter cells
4
A man has overheating of testes often. Which process may decline?
Spermatogenesis and sperm quality
This hormone surge triggers ovulation
LH
This cell stage undergoes meiosis I first
Primary spermatocyte
Once the follicle ruptures, it becomes this.
Corpus Luteum
Why are meiosis daughter cells geneticall different
crossing over
If sperm lacked mitochondria in midpiece, what function decreases most?
Motility (swimming)
This hormone mainly maintains the uterine lining during luteal phase
Progesterone
A varicocele can reduce fertility mainly by disrupting this process
Thermoregulation / keeping testes cool
What is the onset of a female's menstruation called?
Menarche
When sister chromatids fail to separate properly. Trisomy and monosomy
If corpus luteum fails early, what uterine problem may occur?
Poor maintenance of uterine lining / implantation difficulty
Fertilized embryo secretes this hormone to keep corpus luteum active
hCG
This sperm structure contains enzymes to penetrate the oocyte
Acrosome
Name the stages the follicle goes through
Primordial, Primary, Secondary, Antral, Mature, Corpus Luteum, Corpus Albicans
Down syndrome occurs when...
Trisomy of 21st chromosome pair
A man has normal testosterone levels but is infertile because his sperm cannot penetrate the oocyte. Which sperm structure is most likely malfunctioning?
Acrosome