Male Reproductive Behavior

Question 1

what is the underlying causes of behavior are competing intrinsic drives or motivations

Answer 1

drive theory

Question 2

what is the drive theory supported by

Answer 2

animal models in which sex drive could be reduced with castration and restored with androgens

Question 3

males have evolved to maximize what?

Answer 3

reproductive fitness

Question 4

number of possible offspring produced in a given breeding season

Answer 4

potential rate of reproduction

Question 5

do males of females have a higher PRR

Answer 5

males

Question 6

time and energy invested in the production and care of offspring; subdivided into mating effort and parental care

Answer 6

parental investment

Question 7

do males or females invest more in mating effort

Answer 7

males

Question 8

do males or females invest more in parental care

Answer 8

females

Question 9

ratio of males to females available to mate at any given time

Answer 9

operational sex ratio

Question 10

differences in what lead to males being competitive and females being choosy

Answer 10

OSR

Question 11

what regulates the production of male gametes

Answer 11

H-P-G axis

Question 12

hypothalamus-> blank-> blank

Answer 12

anterior pit
testes

Question 13

GnRH-> blank-> blank

Answer 13

LH, FSH

T,E, and DHT

Question 14

sperm production is

Answer 14

constant

Question 15

Seven Up means

Answer 15

Seminiferous tubules
epididymis
vas deferens
ejaculatory duct
nothing here
urethra
penis

Question 16

male sex behavior begins after what when testes become active

Answer 16

puberty

Question 17

removal of testes does what

Answer 17

dampens or removes male sex behavior

Question 18

inference: hormones responsible for regulating spermatogeneis could also regulate

Answer 18

male sex behavior

Question 19

rodent sex behavior can be divided into two categories

Answer 19

appetitive and consummatory phase

Question 20

motivation; libido; courtship; all behaviors males use to gain access to females

Answer 20

appetitve phase

Question 21

copulation; performance; behaviors directly involved in joining sperm and egg

Answer 21

consummatory phase

Question 22

penis becoming engorged and enlagred

Answer 22

erection

Question 23

male assuming a copulatory position

Answer 23

mounting

Question 24

penis entering the vagina during a mount

Answer 24

intromission

Question 25

expulsion of semen from the male's body

Answer 25

ejaculation

Question 26

erection, mounting, intromission, ejaculation is part of what phase

Answer 26

consummatory phase

Question 27

in the experiment: male rats castrated as adults and treated as follows what reverses effects of castration on performance in rats

Answer 27

DHT

Question 28

in the experiment: male rats castrated as adults and treated as follows what reverses effects of castration on motivation in rats

Answer 28

E

Question 29

in the experiment: male rats castrated as adults and treated as follows it appears that both what are required for full male sex behavior

Answer 29

androgens (T and DHT) and estrogens

Question 30

behavior is mediated by

Answer 30

the cns

Question 31

what are the 4 regions of the brain involved in male sex behavior

Answer 31

preoptic area olfactory bulbs vomeronsal organ amygdala

Question 32

the poa is critical for what?

Answer 32

integrating environmental, physiological and physiological information prior to and during copulation

Question 33

in virtually all species, lesions of the POA in adult males eliminates

Answer 33

sexual performance

Question 34

implants of what into the poa of castrated males restores what?

Answer 34

T copulation

Question 35

what senses chemosensory cues; nerves lead to olfactory bulbs

Answer 35

vomeronasal organ

Question 36

the amygdala receives projections from the main and acessory what?

Answer 36

olfactory bulbs

Question 37

what is critical for integrating sensory info important for sex behavior

Answer 37

amygdala

Question 38

neurotransmitter implicated in neural circuitry or arousal, reward, and motivation

Answer 38

dopamine

Question 39

dopamine increases in the what? during and after copulation

Answer 39

POA

Question 40

what modulates hormone-behavior interactions

Answer 40

social context

Question 41

what is the most important social context for male sex behavior

Answer 41

estrous females

Question 42

males do not respond to

Answer 42

non-estrous females

Question 43

males respond less to females who

Answer 43

artificially brought into estrous

Question 44

the coolidge effect (3)

Answer 44

1. male rats will mate to satierty with a female over many hours 2. once satiated, males will no longer copulate 3. unless given a novel females, when males immediately being copulation again