One physician notes that clinical observation shows that breastfeeding contractions do not produce dilation of the cervix. Accordingly, in the Moscona survey of 57 mothers breastfeeding during pregnancy, only four women (seven percent) recalled contractions related to breastfeeding at all.
The pituitary gland itself consists of a larger anterior lobe that makes the following hormones: adrenocorticotropic hormone (ACTH), thyroid-stimulating hormone (TSH), luteinizing hormone (LH), follicle-stimulating hormone (FSH), growth hormone (GH) and Prolactin.
The anterior pituitary gland produces the following hormones and releases them into the bloodstream: 1  Adrenocorticotropic hormone, which stimulates the adrenal glands to secrete steroid hormones, principally cortisol.  Growth hormone, which regulates growth, metabolism and body composition.