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Is salivation a result of parasympathetic stimulation?
no
Does the heart receive both parasympathetic and sympathetic stimulation?
yes
What is parasympathetic stimulation?
Parasympathetic stimulation refers to the activation of the parasympathetic nervous system, which is one part of the autonomic nervous system responsible for rest and digest functions. It slows the heart rate, increases digestion, and promotes relaxation in the body.
What happens if the heart receives more sympathetic stimulation than parasympathetic stimulation?
increase its rate and force of contraction
The effects of sympathetic and parasympathetic stimulation of the salivary glands are called?
complementary
Does the parasympathetic nerve acts as a braking system for the heart?
the heart is supplied by both sympathetic and parasympathetic nerve fibers . normally in resting state the heart is under the parasympathetic stimulation ; that's mean if you ramove the parasympathetic stimulation the heart rate will increase up to 100 beat by minute ( under normal conditions in healthy man the heart rate is 72 on average ) , during exercise the heart rate increase and that occurs by the sympathetic stimulation and decreasing the parasympathetic stimulation , and that exactly resemble what occurs when you increase the car velocity : so the we can say that the parasympathetic nerve acts as a braking system of the heart .written by : asma aburas ; medical student .
Does sympathetic or parasympathetic stimulation produce thicker saliva with more mucus?
Sympathetic. Parasympathetic secretes thin saliva rich in amylase.
Does parasympathetic stimulation inhibit digestion?
No, parasympathetic stimulation actually enhances digestion. It promotes the release of digestive enzymes and increases blood flow to the digestive organs, which helps with the absorption and processing of nutrients from food.
How does PNS stimulation affect the lungs?
parasympathetic system (PSNS) will a)vasoconstrict the lumen of airway by contracting smooth muscle cells along the conducting passage via M3 Receptor, b)increase mucus secretion via M3 Overall it'll interfere with normal breathing pattern and obstruct normal breathing.
What is the result of parasympathetic stimulation of the SA node?
Parasympathetic stimulation of the SA node decreases heart rate by releasing acetylcholine, which hyperpolarizes the cells in the node and slows down the rate of depolarization. This stimulation is mediated by the vagus nerve, leading to decreased firing of action potentials and a slower heart rate.
Blood pressure when parasympathetic stimulation to the heart increases or blood pressure when sympathetic stimulation to the heart increases?
When sympathetic stimulation to the heart increases, it typically leads to an increase in heart rate and contractility, resulting in elevated blood pressure. In contrast, parasympathetic stimulation, primarily through the vagus nerve, decreases heart rate and can lead to lower blood pressure. Therefore, sympathetic activation raises blood pressure, while parasympathetic activation generally reduces it.
What is the response to parasympathetic stimulation of the bladder wall muscle?
Parasympathetic stimulation of the bladder wall muscle primarily causes contraction of the detrusor muscle, which facilitates bladder emptying. This contraction increases intravesical pressure, promoting the expulsion of urine. Additionally, parasympathetic stimulation inhibits the internal urethral sphincter, allowing urine to flow from the bladder into the urethra. Overall, this response is crucial for the process of micturition (urination).
