ATI RN
Exam 4 Psychology
1. Which part of your brain is active when you get cues about being hungry, thirsty, or sleepy?
- A. Hippocampus
- B. Thalamus
- C. Hypothalamus
- D. Amygdala
Correct answer: C
Rationale: The correct answer is the Hypothalamus (Choice C). The hypothalamus plays a crucial role in regulating basic bodily functions such as hunger, thirst, and sleep. It receives cues related to these needs and helps to maintain homeostasis in the body. The Hippocampus (Choice A) is primarily involved in memory formation and spatial navigation, not in regulating physiological needs. The Thalamus (Choice B) acts as a relay station for sensory information but is not the main center for hunger, thirst, or sleep regulation. The Amygdala (Choice D) is more associated with emotions, particularly fear and pleasure, rather than physiological needs like hunger, thirst, or sleep.
2. While out for a walk, you come across a ferocious dog. You feel your heart beating faster and your palms begin to sweat. Which part of the peripheral nervous system is activated in this situation?
- A. Autonomic
- B. Sympathetic
- C. Parasympathetic
- D. Somatic
Correct answer: B
Rationale: The correct answer is B: Sympathetic. When encountering a stressful situation like a ferocious dog, the sympathetic nervous system is activated, leading to the 'fight or flight' response. This response triggers physiological changes like increased heart rate, sweating, and heightened alertness to prepare the body to deal with the perceived threat. The autonomic nervous system (Choice A) encompasses both the sympathetic and parasympathetic divisions, so it's a broader category. The parasympathetic nervous system (Choice C) is responsible for the body's 'rest and digest' functions, which are opposite to the physiological changes seen in a stress response. The somatic nervous system (Choice D) controls voluntary movements and sensory information, not the physiological responses seen in a stress reaction.
3. What role do genetic predispositions play in the development of mental disorders?
- A. Genetic predispositions solely determine the development of mental disorders.
- B. Genetic predispositions play a role but are not solely responsible for the development of mental disorders.
- C. Genetic predispositions have no influence on mental disorders.
- D. Genetic predispositions guarantee the development of mental disorders.
Correct answer: B
Rationale: Genetic predispositions are indeed a factor in the development of mental disorders, but they are not the sole determining factor. While genetics can predispose individuals to certain conditions, environmental factors, lifestyle choices, and life experiences also play a significant role. Choice A is incorrect because mental disorders are influenced by a combination of genetic and environmental factors. Choice C is incorrect as genetic predispositions do have an impact on mental health. Choice D is incorrect as genetic predispositions do not guarantee the development of mental disorders, as other factors also contribute to their onset.
4. Latresha is not hungry, is extremely tired, and doesn't feel like doing much of anything. She often feels that life is just hopeless. These symptoms have been going on for 2 months now. She probably is suffering from which mood disorder?
- A. Generalized anxiety disorder
- B. Bipolar disorder
- C. Major depressive disorder
- D. Obsessive-compulsive disorder
Correct answer: C
Rationale: The correct answer is C, Major Depressive Disorder. Latresha's symptoms of prolonged sadness, fatigue, and lack of interest in activities lasting for 2 months indicate a major depressive episode. Generalized anxiety disorder (A) is characterized by excessive worry and anxiety, not necessarily prolonged sadness. Bipolar disorder (B) involves episodes of both mania and depression, not solely prolonged sadness. Obsessive-compulsive disorder (D) is characterized by obsessions and compulsions, not the symptoms described in the scenario.
5. Defense mechanisms ________.
- A. make a person feel more anxious and have more problems, as they begin to act defensively.
- B. are strategies the id uses to try to achieve its desires.
- C. are conscious, intentional attempts to cope effectively with an anxiety-producing event.
- D. help a person feel less anxious, but because they usually work by distorting reality, they are not always adaptive.
Correct answer: D
Rationale: The correct answer is D because defense mechanisms aim to reduce anxiety but can lead to distortion of reality, making them not always beneficial. Choice A is incorrect as defense mechanisms are meant to reduce anxiety, not increase it. Choice B is incorrect because defense mechanisms are not strategies of the id specifically. Choice C is incorrect as defense mechanisms are often unconscious and not always intentional.
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