definition
The septomarginal trabecula (more commonly known as the moderator band) is a muscular band of heart tissue found in the right ventricle of the heart[1]. It carries part of the right branch of the atroventricular bundle from the septum to the opposite wall of the ventricle[2].
DISCOVERY
The Italian polymath Leonardo di ser Piero da Vinci discovered the moderator band in a bovine heart around 1513. Here is a drawing of the moderator band marked as “D” on a scan[3] of his manuscript:
[ux_image_box img=”828″ image_width=”40″ link=”https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804084/” target=”_blank”]
[/ux_image_box]
Here is a photograph[4] of a moderator band in a human heart:
[ux_image_box img=”831″ image_width=”50″ link=”https://blog.valdosta.edu/ap2/heart-dissection-photos/” target=”_blank”]
[/ux_image_box]
discoverer
Here is a portrait[5] of Leonardo da Vinci:
[ux_image_box img=”834″ image_width=”50″ link=”https://www.biography.com/artist/leonardo-da-vinci” target=”_blank”]
1452-1519
[/ux_image_box]
sources
- https://en.wikipedia.org/wiki/Moderator_band_(heart)
- https://medical-dictionary.thefreedictionary.com/Septomarginal+trabecula
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804084/
- https://blog.valdosta.edu/ap2/heart-dissection-photos/
- https://www.biography.com/artist/leonardo-da-vinci