Test 3 - Sexual Behaviors

Question 1

Medial preoptic area

Answer 1

• anterior hypothalamus
• essential for male courtship behaviors, mating
• neuron #, projection pattern differs between sexes

Question 2

Medial amygadala

Answer 2

programmed cell death in females & larger in males

Question 3

AVPV

Answer 3

regulates ovulatory cycle - larger in females

Question 4

Olfaction and sex

Answer 4

olfaction is connected to hypothalamus in rodents
mating territory defense and recognize sex of potential partner

Question 5

What kind of ligand binds to an intracellular receptor

Answer 5

lipid or steroid

Question 6

4. What is an intracellular receptor, how does it work, and what is the overall end result of activating one of these?

Answer 6

wait inside for ligand - form a receptor-hormone complex which goes into nucleus and binds to promoter to increase gene expression

Question 7

SRY

Answer 7

located on y chromosome - gives maleness and allows for testosterone production in certain cells & leads to testes development

Question 8

Where does estrogen come from in male cells?

Answer 8

aromatase converts testosterone to estradiol in cells that express aromatase (some male behaviors are based on estrogen)

Question 9

VMH effects in females

Answer 9

lordosis

Question 10

VMH effects in males

Answer 10

sexual and aggressive behavior

Question 11

How is testosterone and estrogen production regulated? Describe this feedback loop in detail.

Answer 11

GnRH of anterior pituitary ->LH/FSH -> ovary/testis -> tex hormones -> AVPV/ARC -> GnRH