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
Sex hormone-binding globulin (SHBG) is thought to mainly function as a transporter and reservoir for the estradiol and testosterone sex hormones. However it has also been demonstrated that SHBG can bind to a cell surface receptor (SHBG-R). The SHBG-R has not been completely characterized. A subset of steroids are able to bind to the SHBG/SHBG-R complex resulting in an activation of adenylyl cyclase and synthesis of the cAMP second messenger.  Hence the SHBG/SHBG-R complex appears to act as a transmembrane steroid receptor that is capable of transmitting signals to the interior of cells.