KINE 1020 Lecture Notes - Lecture 12: Body Composition, Subcutaneous Tissue, Densitometry
8 Sep 2016
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The stress response: hypothalamic pituitary adrenal (hpa) axis, sympathetic nervous system (sns) Nervous system: autonomic nervous system (ans) Endocrine system: hypothalamo-pituitary-adrenal (hpa) system and associated hormones (acth, cortisol, catcholamines) Nervous system response to stress the locus coeruleus. Increases arousal and vigilance and modulates the action of the autonomic nervous system. Regulates blood flow, heart rate, blood pressure, and respiration. Shuts down the gastrointestinal (gi) and sexual systems until the crisis is over. Ns response to stress the limbic system. Moodiness, irritability, depression increased negative thinking decreased motivation appetite and sleep problems decreased or increased sexual responsiveness social isolation. Adrenal gland has cortex: [glucocorticoids, mineralcorticoids, sex steroids] medulla: Negative feedback control of homeostasis other symptoms of stress response. Elevated cort levels increase diabetes risk: effects that can be reversed with exercise. Feeling irritable, anxious or apathetic: working or studying longer or harder than usual. You have some control over your reaction to stress.
