What part of the brain signals hunger?
The hypothalamus
What is the difference between the Lateral Hypothalamus and Ventromedial Hypothalamus?
1) Lateral - desire to eat
2) VM - sends “Im full” signals
What is glucose?
a form of sugar that circulated in blood and is the major source of energy.
What does insulin do?
Controls blood gluclose
What does Ghrelin do?
Sends “Im hungry signals to the brain”
What does orexin do?
activated by ghrelin; maintains wakefulness, arousal, and energy expenditure(calories burned a day).
What does leptin do?
it signals the brain’s hypothalamus to suppress hunger and increase calories burned when fat stores are sufficient
What does PYY do?
sends “I’m not hungry” signals
What is a set point?
Our tendency to hover around a stable weight.
ex) weight rises = hunger lowers and calories consumed raises
Carbs boost…
SEROTONIN
What is the Basal Metabolic rate?
the minimum calories required daily to sustain essential life functions
When around friends….
we become hungry even if we just ate
At the end of your summer barbeque, you are feeling very full due to the activity of your
a. cerebellum.
b. arcuate nucleus.
c. hypothalamus.
d. hippocampus.
e. adrenal glands
c. hypothalamus.
No matter how hard she tries to lose weight, Anne finds it difficult to drop below 145 pounds. The weight of 145 pounds is best described as Anne’s
a. neophobia.
b. basal metabolic rate.
c. body mass index.
d. PYY.
e. set point.
e. set point.
Leptin, a protein that causes hunger when its levels are low, is secreted by
a. fat cells.
b. the pituitary gland.
c. the stomach.
d. the small intestine.
e. the large intestine.
a. fat cells.
Dylan has a BMI of 36. She would best be described as
a. introverted.
b. below average on the Buoyant Mood Index.
c. normal in Basal Metabolism Index score.
d. extroverted.
e. obese.
e. obese.