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21 Cards in this Set

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Secondary Sex Organ
An Organ other than the ovaries and testes that is essential to reproduction, such as the external genitalia, internal genital ducts, and accessory glanes.
Reproductive System
An organ system specialized for the production of offspring.
Gamete
An egg or sperm cell.
Secondary Sex Characteristic
Any feature that is inessential to reproduction but otherwise distinguishes male from female and promotes attraction between sexes. (i.e. distribution of subcutaneous fat, vocal pitch, female breasts, male facial hair)
Sperm
The fluid ejaculated by the male; semen. Contains spermatazoa and glandular secretions.
Gametogenesis
Production of eggs or sperm.
X Chromosome
The larger of the two sex chromosomes; males have one x chromosome and females have two in each somatic cell.
Homologous
Having the same embryonic or evolutionary origin but not necessarily the same function, such as the scrotum and labia majora.
Ovary
The female gonad; produces eggs, estrogen, and progesterone.
Dorsal
Toward the back (spinal) side of the body.
Human Chorionic Gonadotropin
A hormone of pregnancy secreted by the chorion that stimulates continued growth of the corpus luteum and secretion of its hormones. HCG in urine is the basis for pregnancy testing.
Prostate gland
A male reproductive gland taht encircles the urethra immediately inferior to the bladder and contributes to the semen.
Spermatogenesis
The production of sperm cells through a series of mitotic and meiotic cell divisions. male gametogenesis.
Testis
The male gonad; produces spermatozoa and testosterone.
Y Chromosome
Smaller of the two sex chromosomes, found only in males and having little if any genetic function except development of the testis.
Zygote
A single-celled fertilized egg.
Sex Chromosomes
The X and Y chromosomes, which determine the sex of an individual.
Semen
The fluid ejaculated by a male, including spermatazoa and the secretions of the prostate and seminal vesicles.
Spermatozoon
A sperm cell.
Meiosos
A form of cell division in wich a diploid cell divides twice and produces four haploid daughter cells; occurs only in gametogenesis.
Cross section
A cut perpendicular to the long axis of the body or an organ.