Skip to main content
. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: FASEB J. 2020 Jun 23;34(8):10041–10055. doi: 10.1096/fj.202000215R

Figure 5. Example of spontaneous transient increases in circumflex coronary flow in a fetal sheep.

Figure 5.

A LabChart window displaying (top-bottom) fetal amniotic pressure, arterial pressure (corrected for amniotic pressure), venous pressure (corrected for amniotic pressure), raw coronary flow, mean coronary flow, and heart rate in a fetus of an awake, calmly resting ewe. In this example, fetal coronary flow rises, following an elevation in amniotic compartment pressure (peak-peak interval approximately 4.5 min). Flow is elevated for approximately 11 minutes. Note that perfusion pressure and work did not change, as both arterial and venous pressures followed amniotic pressure, and heart rate did not increase. Time scale for right window, 1 division = 0.5 s; on left 1 division = 60 s.