NeuroBiology Ch17

33 terms by BuddahRae

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SRY

codes for TDF; causes the development of the testes, and the hormones from th testes are largely responsible for making the male fetus develop

SRY

causes human to develop as a male; located on the Y chromosome

mullerian duct

develops into the female internal reproductive system

mullerian duct

prevented from developing when testosterone is produced

wolffian duct

develops into the male internal reproductive system with the presence of testosterone

wolffian duct

degenerates without the upsurge of testosterone

true

during the first 6 weeks of pregnancy, the gonads are in an indifference stage that can develop into either ovaries or testes. (True/False)

androgens

male hormones

estrogens

female hormones

aromatase

enzyme that converts testosterone to estradiol

steroids

fatty and can easily pass through cell membranes and bind to receptors within the cytoplasm, giving them direct access to the nucleus and gene expression

testes

primarily responsible for the release of androgens

10

female concentrations of testosterone are roughly __% of those found in males

gonadotropins

LH and FSH

LH

stimulates the testes to produce testosterone

FSH

involved with the maturation of sperm cells within the testes

LH

stimulates ovulation in females

FSH

stimulates follicle development in ovaries

sexual dimorphism

Differences in physical characteristics between males and females of the same species.

preoptic area of the anterior hypothalamus

clustered around the third ventricle, the most distinct sexual dimorphic region in the mammalian brain; appears to have a role in reproductive behaviors.

estrous cycle

lesions to the preoptic area of the anterior hypothalamus in female rats causes a disruption in the ___.

SDN

five to eight times larger in males than in females (rats)

larger

INAH-1, INAH-2, INAH-3 are ____ in males than in females (humans)

INAH-3

clearest dimorphic structure in humans; first reported to be twice as large in men as women by Laura Allen, Roger Gorski, and their colleagues

women

which sex is better at verbal tasks?

women

which sex is better at naming objects of the same color?

women

which sex is better at listing words beginning with the same letter?

women

which sex is better at verbal memory?

men

which sex is better at map reading?

men

which sex is better at maze learning?

men

which sex is better at mathematical reasoning?

men

which sex is better at mental rotation of objects?

androgens

provide a unitary signal for masculinization in the brain

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