32 Questions
What is the total number of chromosomes in a sperm cell and an oocyte combined?
46
What is the purpose of the dartos and cremaster muscles in the scrotum?
To regulate the temperature of the testes
What is the function of Sertoli cells in the seminiferous tubules?
To regulate the blood-testes barrier
What is the number of lobules in each testis?
300-400
What is the purpose of the tunica albuginea in the testes?
To cover the testes and separate them into lobules
What is the number of cell types in the seminiferous tubules?
6
What happens to the corpus luteum if there is no pregnancy within 10-12 days?
It degrades
What is the primary function of the breasts in the reproductive system?
To provide milk or colostrum through lactation
How does hormonal birth control prevent pregnancy?
By producing a constant amount of estrogen and progesterone
What is the term for the development process of sperm cells?
Spermatogenesis
What is the purpose of the epididymis in the male reproductive system?
To mature sperm cells
What is the primary determinant of sex in humans?
The presence of the Y chromosome
What is the typical age range for puberty in females?
9-11 years
What is the function of the mitochondria in the sperm cell?
To produce ATP
What is the percentage of semen that is made up of sperm?
5%
What is the effect of poor nutrition on puberty?
It accelerates puberty in both males and females, but more pronounced in females
What is the purpose of the prostate gland in the male reproductive system?
To add fluid to semen
What is the term for the surgical removal of the foreskin?
Circumcision
What is the hormone responsible for the development of male sexual reproductive organs?
Testosterone
What is the term for the failure of one or both testes to descend into the scrotum prior to birth?
Cryptorchidism
How long does it take for sperm cells to mature in the epididymis?
12 days
What is the main function of the glans penis?
To contain a high concentration of nerve endings
What is the primary function of the natural microorganisms present in the vagina?
To protect from pathogens
What is the approximate size of the ovaries?
The size of an almond
What is the term for the process of oocyte production?
Oogenesis
How many oocytes decline in number from birth to puberty?
From 2 million to 400,000
What is the term for the release of an oocyte?
Ovulation
What is the purpose of the large amount of cytoplasm in the ovum?
To provide nutrients between fertilization and implantation
What is the term for the death of multiple follicles during folliculogenesis?
Atresia
What is the primary function of the uterine tubes?
To transport the oocyte to the uterus
What is the term for the phase of the menstrual cycle characterized by the shedding of the uterine lining?
Menses phase
What is the primary function of progesterone during the secretory phase?
To prepare the uterus for implantation
Learn about the human reproductive system, including gametes, chromosomes, and the role of the testes and scrotum in sperm production.
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