Insulin oscillation oscillations. The insulin oscillations are generated by pulsatile release of the hormone from the pancreas. Insulin originates from beta cells located in the islets of Langerhans. Since each islet contains up to 2000 beta cells and there are one million islets in the pancreas it is apparent that pulsatile secretion requires sophisticated synchronization both within and among the islets of Langerhans. Pulsatile insulin secretion from individual beta cells is driven by oscillation of the calcium concentration in the cells. In beta cells lacking contact, the periodicity of these oscillations is rather variable (2-10 min). However, within an islet of Langerhans
Where You Lead for "Where You Lead", reflecting the fact that soon after the release of "Tapestry" King came to the realization that "Where You Lead" was somewhat politically incorrect and as a result stopped performing it live, only reinstating the song in her concert setlists following its 2000 lyrical revision (see Section 3 below). Additional musicians Barbra Streisand recorded "Where You Lead" in a 21 April 1971 session which would yield seven tracks featured on the August 1971 album release "Barbra Joan Streisand", which album would include a total of three covers of "Tapestry" tracks: "Where You Lead", "Beautiful", and "You've Got