General Neurology
Suprascapular neuropathy
Nov. 08, 2023
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Rocky Mountain wood tick comparison, female and male
Comparison of a female (left) and a male (right) Rocky Mountain wood tick, Dermacentor andersoni (dorsal views). Note the smaller size of the female’s scutum compared to the male’s larger scutum. From the Latin word for “shield,” the scutum, ie, dorsal shield, covers only a small part of the female’s dorsal surface, thereby enabling her abdomen to expand and become engorged during feeding. The male’s scutum covers his entire dorsal surface and is mottled with brown markings overall, whereas the female’s small scutum sports a cream-colored gray surface. Photographs by James Gathany (2008). (Courtesy of the Public Health Image Library, Centers for Disease Control and Prevention. Public domain.)