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Related to Sympathetic nerves: nervous system, autonomic nervous system
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LT, the lamina terminalis; PVN, the paraventricular nucleus of hypothalamus; SNA, sympathetic nerve activity.
Effects of exercise training on sympathetic nerve activity can reflect a generalized normalization of all known cardiovascular reflexes.
Sympathetic nerve activity does not reduce properioceptive acuity in human.
In general, two major sets of nerves control heart activity: the vagus nerve that slows heart function, and the sympathetic nerves that increase it.
For severe hyperhidrosis, surgical procedures may be performed in which sympathetic nerves are either removed or blocked or sweat glands are removed.
When you have a cold, your sympathetic nerves shut down the blood vessels in the nose, reducing congestion and making it easier to breathe.
Capillary junctions begin to open due to the sympathetic nerves contracting the endothelial cells eventually leading to increased lung water and the occurrence of edema.
Renal sympathetic nerves innervate the tubules, the vessels, and the juxtaglomerular granular cells of the kidney (1).
To reach the conclusion, Cone, Sourojit Bhowmick and colleagues injected some mice with a drug called 6-hyroxydopamine (6-OHDA) that selectively removes sympathetic nerves located in different organs, or a saline solution.
The combined measurements of norepinephrine and DHPG in particular led to a realization that deamination represented the primary determinant of norepinephrine turnover in sympathetic nerves (1).
This finding strongly suggests that the latter arose from the sympathetic nerves rather than the adrenal glands (Table 2).
Such nerve damage can lead to over stimulation of the sympathetic nerves that in turn can lead to more sensitive stimulation, especially in Darwin's case where he had long suffered from stress in social situations and scientific meetings.