Equinus
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Equinus is a term used in both anatomy and pathology to describe similarities between parts of the human body and those of a horse. Examples include the cauda equina of the spinal cord and pes equinus, a foot in a state of plantar flexion contracture.
Encyclopedia entry (1928–1936)
EQUINUS, a term used in both anatomy and pathology to designate the similarity existing between parts of the human body and parts of a horse's body. Thus, in anatomy, the collection of the lower roots of the spinal cord, due to its resemblance to a horse's tail, bears the name cauda equina (see Spinal cord). In pathology, a foot in a state of flexural plantar contracture resembles a horse's hoof (pes equinus).
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“Equinus.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/equinus/