Refractory period (sex) autonomic feedback mechanism, rather than through central chemicals like oxytocin, serotonin, and prolactin. Autonomic feedback is already known to regulate other physiologic systems, such as breathing, blood pressure, and gut motility. This theory suggests that after male ejaculation, decreased wall tension in structures such as the seminal vesicles leads to a change in the fine autonomic signals sent from these organs, effectively creating a negative feedback loop. Such a mechanism is similar to decreased gastric and bowel motility once gastric contents have passed through. Once the feedback loop has been created, the refractory period remains until the loop is broken
Birthing chair fours, kneeling and sitting, and are used as supports not necessarily as chairs or stools. Research suggests that being upright during labour can have many positive benefits for mother and baby. Using a modern-day birthing chair/stool/support can aid a woman in having an upright birth. Line 1 from 1.1 to 1.10 photographs show mother alone on birth-chair (with bowl beneath seat opening to catch amniotic fluid) and with support from partner respectively and photograph 5.5 shows a wooden birthing chair with foot supports. Birthing chair A birthing chair, also known as a birth chair, is a device that is shaped