Mindblown: a blog about philosophy.

The smooth muscle investing the common bile duct just before its junction with the pancreatic duct; a part of the sphincter of Oddi.  

A sphincter that closes the anus, composed of two parts: the external one being of striated muscle, the internal one, of smooth muscle.  

In bacteriology, the cell and partial cell wall remaining after the organism’s cell-wall synthesis has been prevented. Spheroplasts may be formed when synthesis of the cell wall is prevented by the action of certain chemicals, e.g., penicillin, while cells are growing.  

A device to ascertain the curvature of a surface.  

A minute stone in the kidney of the newborn.  

A lens with a spherical surface and a cylindrical surface.  

A ball or globelike structure.