lecture12-10

lecture12-10 - the stress response is interesting because...

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lecture 11 -the adrenal gland and stress •the stress response is interesting because it requires coordinated action between the endocrine system and the autonomic nervous system. Stress can include:starvation,physical trauma, intense exercise, infection, emotional stress, prolonged cold, and other things. •two classes of hormones produced by the adrenal gland are important for response and adaptation to stress 1. epinephrine and norepinephrine rapid response to stress 2. cortisol (corticosterone) long-term adaptation to stress (a steroid ) ( product of the autonomic nervous system ) (dehydroepiandrosterone androstenedione)
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frst, the adrenal medulla and epinephrine/norepinephrine • the adrenal medulla is part oF the autonomic nervous system. •autonomic responses involve as series oF nerves - the frst with the cell body in the CNS. These preganglionic nerves then synapse at ganglia (cell clusters) to post ganglionic nerves. •Most sympathetic ganglia (sympathetic trunks) are close to the spinal cord: •In the parasympathetic branch the ganglia are in, or near, the target organs.
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frst, the adrenal medulla and epinephrine/norepinephrine • note parasympathetic nerves only leave the CNS in the brainstem and sacral region oF the spinal cord, while sympathetic nerves exit at the thoracic and lumbar spinal chord regions. • the parasympathetic branch is involved in regulating organ Function during the resting state . .. more on this later in the quarter. •the sympathetic branch is involved in response to stress. The sympathetic response involves both direct innervation oF specifc organs like the heart and lungs, and a hormonal response by the secretion oF epinephrine
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lecture12-10 - the stress response is interesting because...

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