Exam 9: Homeostasis, Motivation, and Reward

 Lesions in which of the following structures may interfere with satiety?

 People with anorexia nervosa that would be categorized as "severe" usually maintain a BMI of less than

 Neuropeptide Y (NPY) and agouti-related protein (AgRP)

 Why does hyponatremia occur, and what are its consequences?

 Amanda went on a crash diet in order to look terrific for a friend's wedding. She consumed only 800 calories per day compared to the 3,000 calories per day she normally consumed. After the wedding, she found that she rapidly passed up her original weight by ten pounds, even though she was eating 2,500 calories per day instead of her original 3,000. What's going on here?

 Following open heart surgery or cardiac arrest, it has become common for physicians to

 Stuart was in a serious automobile accident and, in addition to breaking several bones, he suffered a deep cut that was bleeding badly. As he waited for help to arrive, it is likely that Stuart was beginning to experience

 Professor Kreger studies homeostatic mechanisms in rats. He has found that when he stimulates the zona incerta, rats will

 A particular value defended by a regulatory system, such as body weight or core temperature, is known as

 The abnormalities associated with hyponatremia occur when

 Homeostasis is an organism's ability to adjust its physiological processes to maintain a steady internal balance or equilibrium.

 You have been hiking, and as night falls and the temperature drops, the first part of your temperature regulation system to be activated is probably your ________, which will trigger your _________ to make you shiver.

 Professor Wedell tells her class that baroreceptors are important because they measure

 When scientists first discovered that externally administering leptin to obese mice produced dramatic weight loss, they were excited about leptin's potential as a weight loss aid for people. Subsequently, obese humans were found to be producing high levels of leptin, to which they had become resistant. Describe the likely outcomes of leptin resistance to the appetite and feeding patterns of obese humans.

 High levels of leptin stimulate the release of

 Aldosterone signals the kidneys to

 Jenae is going through menopause and has been experiencing hot flashes because her _______ levels have _______.

 Routtenberg and Lindy (1965) allowed rats access to two levers for one hour per day to either obtain ICSS or food. They found that

 A neuropeptide that may signal satiety is

 Gena's doctor uses _____, which is a height/weight ratio to determine if her weight is healthy or if she is getting overweight.