PED 103 Chapter 10

breannurban's version from 2015-09-30 02:02


Question Answer
StressorAny physical or psychological event or condition that produces physical and emotional reactions.
Stress responseThe physical and emotional reactions to a stressor.
StressThe general physical and emotional state that accompanies the stress response.
Autonomic nervous systemThe branch of the nervous system that controls basic body processes; consists of the sympathetic and parasympathetic divisions.
Parasympathetic divisionA division of the autonomic nervous system that moderates the excitatory effect of the sympathetic division, slowing metabolism and restoring energy supplies.
Sympathetic divisionA division of the autonomic nervous system that reacts to danger or other challenges by almost instantly accelerating body processes.
NorepinephrineSympathetic nerves use this neurotransmitter on specific tissues to increase their function in the face of increased activity; when released by the brain, it causes arousal.
Endocrine systemThe system of glands, tissues, and cells that secretes hormones into the bloodstream to influence metabolism and other body processes. The sympathetic nervous system triggers this system.
HormoneA chemical messenger produced in the body and transported in the bloodstream to targeted cells or organs for specific regulation of their activities.
EpinephrineA hormone secreted by the medulla (inner core) of the adrenal gland that affects the functioning of organs involved in responding to a stressor; also called adrenaline.
CortisolA steroid hormone secreted by the cortex (outer layer) of the adrenal gland; also called hydro cortisone.
EndorphinsBrain secretions that have pain-inhibiting effects.
HomeostasisA state of stability and consistency in a person's physiological functioning.
Fight or flight reactionA defensive reaction that prepares a person for conflict or escape by triggering hormonal, cardiovascular, metabolic, and other changes. Heart and respiration rates accelerate to speed oxygen through the body. Hearing and vision become more acute. The liver releases extra sugar into the bloodstream to boost energy. Perspiration increases to cool the skin. The brain releases endorphins in case you are injured.
Somatic nervous systemThe branch of the peripheral nervous system that governs motor functions and sensory information; largely under conscious control.
PersonalityThe sum of behavioral, cognitive, and emotional tendencies.This clearly affects how people perceive and react to stressors.
Type A personalityUltra competitive, controlling, impatient, aggressive, and hostile. These people have a higher perceived stress level and more problems coping with stress. They react explosively to stressors.
Type B personalityRelaxed and contemplative. These people are less frustrated by daily events and more tolerant of other's behaviors.
Type C personalitySuppress anger, difficulty expressing emotions, feelings of hopelessness and despair, and and exaggerated response to minor stressors.
EustressStress resulting from a pleasant stressor.
DistressStress resulting from an unpleasant stressor.
General Adaptation Syndrome (GAS)A pattern of stress responses consisting of three stages: alarm, resistance, and exhaustion. The physical responses is the same for both eustress and distress.
Alarm stageThis stage includes a complex sequence of events brought on by the fight or flight response. The body is more susceptible to disease or injury.
Resistance stageWith continued stress, the body develops a new level of homeostasis in which it is more resistant to disease and injury than normal.
Exhaustion stageA life-threatening type of physiological exhaustion.
Allostatic loadThe long-term negative impact of the stress response on the body.

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