Umbilicus urbis Romae, the designated center of the city of Rome from which and to which all distances in Rome and the Roman Empire were measured
umbilicus | Budding ''Umbilicus rupestris'' in Instow | Umbilicus urbis Romae | umbilicus (mollusc) | Detail of ''Umbilicus rupestris'' near Stirling |
This genus nearly resembles Actaeon, but without any fold on the columella; the umbilicus, moreover, is wide and deep, and the surface of the shell is cancellated.
To avoid lipohypertrophy, persons with diabetes mellitus who inject insulin daily for an extended period of time are advised to rotate their injections among several areas (usually upper, outer arms, outer thighs, abdomen below and around the umbilicus, and the upper parts of the buttocks.
The transducer bands are placed around the rib cage under the armpits and around the abdomen at the level of the umbilicus (belly button).
Syringonautilus (K438) which has been found in the Alps, on Spitsbergen, in India and Japan has a rapidly expanding evolute shell with a perforate umbilicus and suboval whorl section.
The shape of these veins and their arrangement around the umbilicus is said to resemble the snake-like hair of the mythological Greek Monster, Medusa.
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Caput Medusa is a clinical sign that is recognized by the physician by the characteristic appearance of distended veins emanating from the umbilicus of the patient.