Nausea is an uneasiness of the stomach that often precedes vomiting. Nausea and vomiting are not diseases, but they are symptoms of many conditions. There are numerous cases of nausea and vomiting. Some causes may not require medical treatment, for example, motion sickness, and other causes may require medical treatment by a doctor, for example, heart attack, lung infections, bronchitis, and pneumonia.
Some causes of nausea and vomiting may be life threatening, for example, heart attack, abdominal obstruction, and cancers.
Treatment of nausea and vomiting depends upon the cause.
According to the micturation reflex as given in the NCERT, strectch receptors help in sending the signals to the brain. The brain then depending on the amount of urine stored in the urinary bladder will give the signal of either opening or closing of the sphicter muscles ….But according to Q15 if the receptors are removed completely ….no signal will be sent to the brain wich in turn will have no response to the sphincter muscles and thus the spincter muscles wud remain as it is (closed)…..the urin ewill continue to collect in the urinary bladder