Psychology 312 Quizzes for chapter 8-9-10
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