28 Questions
What is the scrotum?
A sac or pouch which holds the testes
What is the main function of the scrotum?
To maintain the proper temperature of the testes
What is contained within the scrotum?
The testes
What is the purpose of the scrotum's temperature regulation?
To aid in the production of sperm
What is NOT a function of the scrotum?
To produce hormones
What is the result of the fusion of ova and sperm?
A diploid zygote
How many sets of chromosomes do gametes usually have?
One set
What is the process by which the zygote develops into a large number of cells?
Mitotic divisions
What is the term for the process of gamete formation?
Gamete formation
What is the term for the fusion of ova and sperm?
Fertilization
What is the stage of life when the reproductive system becomes active?
Puberty
What is the term for the development of the embryo and fetus?
Development of the embryo and fetus
What is the term for the process of producing haploid gametes?
Meiotic divisions
What is the primary function of the ovary?
Producing female sex hormones
Where does oogenesis take place?
In the ovary
What is the site of female sex hormone production?
The ovary
What is the term for the formation of egg cells?
Oogenesis
What is produced in the ovary?
Female sex hormones
What is the section of the urethra that passes through the prostate gland?
Prostatic urethra
What is the function of the urethra in males?
To transport both urine and semen
What is the urethra divided into?
Three sections: prostatic, membranous, and spongy
What is the name of the urethra section that passes through the urogenital diaphragm?
Membranous urethra
What is the last section of the urethra?
Spongy urethra
Which hormone stimulates the release of an egg from the ovary?
FSH
What happens to the follicles in the ovary each month?
One follicle matures and the others degenerate
What is the term for the changes that occur in the ovary during the menstrual cycle?
Ovarian cycle
Which hormones are involved in the regulation of the menstrual cycle?
Estrogen and Progesterone
How many eggs are released from the ovary each month?
One
Study Notes
Sexual Reproduction
- Sexual reproduction involves meiotic divisions of germ cells producing haploid gametes (23 chromosomes) that fuse to form a diploid zygote (46 chromosomes).
- The zygote undergoes mitotic divisions to produce a large number of cells that differentiate to form various tissues of the new individual.
Stages of Mammalian Reproduction
- Gamete formation
- Fertilization
- Development of the embryo and fetus
The Reproductive System
- Becomes active after puberty
- Scrotum: a sac that holds the testes and maintains their proper temperature
The Urethra
- Divided into three sections: prostatic urethra, membranous urethra, and spongy urethra
Ovary and Oogenesis
- Ovary is the site of oogenesis and female sex hormone production
- FSH (follicle-stimulating hormone) stimulates oocyte maturation and release of an ovum
- One ovary releases an ovum each month, which is influenced by estrogen and progesterone hormones
- Ovarian cycle concerns the changes in the ovary during the menstrual cycle
Learn about the processes of sexual reproduction, including meiotic divisions and the production of haploid gametes. Understand the role of chromosomes in this process.
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