Chapter 17 Flashcards
gender identity
a person’s perception of his or her maleness or femaleness
genotype
the genetic makeup of an animal or person
genetic sex
the sex of an animal or person based solely on genotype
sex-determining region of the Y chromosome (SRY)
a gene on the Y chromosome that codes for testis-determining factor; essential for normal male development
androgens
male sex steroidal hormones, the most important of which is testosterone
estrogens
female steroidal hormones, the most important of which are estradiol and progesterone
luteinizing hormone (LH)
a hormone secreted by the anterior pituitary; its diverse roles include the stimulation of testosterone production in males and that facilitation of follicle development and ovulation in females
follicle-stimulating hormone (FSH)
a hormone secreted by the anterior pituitary; its diverse roles include the growth of follicles in the ovaries and the maturation of sperm in the testes
gonadotropins
hormones secreted by the anterior pituitary that regulate the release of androgens and estrogens from the testes and ovaries
gonadotropin-releasing hormone (GnRH)
a hypophysiotropic hormone secreted by the hypothalamus; regulates the release of luteinizing hormone and follicle-stimulating hormone from the anterior pituitary
menstrual cycle
the female reproductive cycle in primates
estrous cycle
the female reproductive cycle in most nonprimate mammals in which there are periodic episodes of estrus or “heat”
polygyny
mating bx in which one male mates with more than one female
polyandry
mating bx in which on female mates with more than one male
monogamy
mating bx in which 2 individuals form a tightly bound relationship that includes exclusive or nearly exclusive mating with each other
