1 The Centers for Disease Control and Prevention (CDC) recommends 2 doses of quadrivalent meningococcal conjugate vaccine for adolescents 11 through 18 years of age.  The first dose should be given at 11 or 12 years of age, followed by a booster dose at age 16.
Figure- The synchrony between the three major system of human body. The major differences between hormones and neurotransmitters are as follows-. â¢ Neurotransmitters belong to the nervous system, whereas hormones belong to the endocrine system. â¢ Transmission of neurotransmitters is across the synaptic cleft, whereas that of hormones is by blood. â¢ Hormones are produced by endocrine glands while neurotransmitters are produced by neurons.
Prostaglandins are known to regulate the female reproductive system, and are involved in the control of ovulation, the menstrual cycle and the induction of labour. Indeed, manufactured forms of prostaglandins - prostaglandin E 2 and F 2 can be used to induce (kick-start) labour. How are prostaglandins controlled? The chemical reaction that makes the prostaglandins involves several steps; the first step is carried out by an enzyme called cyclooxygenase.