1.) Term: homeostasis Definition: The tendency of the body to seek and maintain a condition of balance or equilibrium within its internal environment, even when faced with external changes. Application: Our body is able to keep an internal temperature of 98.6 degrees Fahrenheit regardless of the external factors. 2.) Term: Maslow’s Hierarchy of Needs Definition: a motivational theory in psychology that argues that while people aim to meet basic needs, they seek to meet successively higher in the form of a pyramid. Application: According to Maslow, this is why we live. We live to fulfill our hierarchy of needs. 3.) Term: lateral vs. ventromedial hypothalamus Definition: lateral­ causes you to feel hungry, ventromedial­ makes you feel full. Application: If someone lesioned your lateral hypothalamus you would most likely lose a lot of weight because you would never be hungry again. If someone lesioned your ventromedial hypothalamus you would most likely gain a lot of weight because you would always feel hungry. 4.) Term: anorexia nervosa Definition: an eating disorder characterized by refusal to stay at even the minimum body weight considered normal for the person's age and height Application: Anorexic people tend not to eat much because they see see themselves as overweight, when often times they are extremely thin. 5.) Term: bulimia nervosa Definition: An eating disorder characterized by episodes of secretive excessive eating
(binge­eating) followed by inappropriate methods of weight control, such as self­induced vomiting (purging), abuse of laxatives and diuretics, or excessive exercise. Application: People with bulimia may eat a lot out of stress, but they are also self­conscious about their weight even though they still eat a lot. 6.) Term: sexual response cycle

Definition: the sequence of physical and emotional changes that occur as a person becomes sexually aroused and participates in sexually stimulating activities, including intercourse and masturbation. Application: This is the reason people have sex. People have sex for the