# Pacemaker cells { "id": "S94005118", "title": "Pacemaker cells", "url": "/topics/S94005118", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "b9b9dc32182da0bc", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "10144569285138597412", "address_version": "morton4x16-v1", "coordinates": [ 0, 22, 27037, 63488 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Here are entered works on cells that exhibit physiological pacemaker activity in excitable tissues, such as the heart and gastrointestinal smooth muscle. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh94005118 No owner-reviewed local answer yet.