Psychology 312 Quizzes for chapter 8-9-10

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Animals produce endogenous circadian rhythms that last ____.​

about a day

at what point in the menstrual cycle, if any, are women who are not on birth control pills most likely to initiate sexual activity?

about midway between two menstrual periods (around the time of ovulation)

research with cats indicates that message from the pons to the spinal cord during sleep prevent us from

acting out our dreams

when would you be most likely to experience osmotic thirst?

after eating salty foods

variations in insulin level alter hunger by changing the _______

availability of glucose to the cells

one function served by alpha-feto protein in the developing rat fetus is to______

bind to estradiol to prevent it from entering cells

A cycle of food-deprivation following by overeating characterizes:

bulimia

Dreams only occur during REM sleep.

false

humans and all other mammals are poikilothermic

false

whether or not a person becomes obese is entirely dependent on their genetic makeup

false

Wolffian ducts are found in

female and male fetuses early in development

what develops from the mullerian ducts

female reproductive structures

parts of the hypothalamus can generate a cyclic pattern of hormone release in______

females only

the suprachiasmatic nucleus is found in the

hypothalamus

the difference between males and females in the sexually dimorphic nucleus is that it is_______

larger in males than in females

what substance is produced by fat cells

leptin

which is true of androgen and estrogen

male and females both have androgen and estrogen, but in different amounts

what is the first point in the digestive system where enzymes begin to break down food?

mouth

Sometimes people find themselves unable to move their postural muscles immediately after awakening Why?

part of the brain is still asleep

Melatonin is released by the

pineal gland

An organizing effect differs from an activating effect of a hormone in that an organizing effect ____.​

produce more long lasting effects

the hormone that prepares the uterus for pregnancy is______

progesterone

tasting and chewing are motivating factors in

satiety

What is narcolepsy?

sudden periods of sleepiness during the day

sleep spindles and K complexes are most characteristic of which sleep stage

Stage 2

What is NOT a function of sleep?

to increase body temperature

Homeostasis refers to temperature regulation and other biological processes that keep body variables within a fixed range

true

hormones are capable of inducing long lasting changes throughout the body

true

light is primary stimulus that resets the circadian rhythm for land animals (including humans)

true

most mammals at about the age of weaning lose the intestinal enzyme lactase

true


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