Capillaries surrounding nephron, maintain gradient.

(anatomy) The straight (descending) portion of the proximal tubule of the kidney, coming after the initial convoluted portion (the pars convoluta).

Curved molding, concave lower part.

Clematis recta, the erect climaxis or ground virgins, is a species of Clematis unusual in that it is a free-standing shrub rather than a climbing plant.

Direct speech.

In cryptography, the tabula recta (from Latin tabula rēcta) is a square table of alphabets, each row of which is made by shifting the previous one to the left.