Ataxia with malfunction of the cerebellum.
- Spinous process
A slender projection from the back of a vertebra to which muscles and ligaments are attached.
- Spiral CAT scan
See Helical CT, Computed Tomography.
- Spiral fracture
A fracture, sometimes called a torsion fracture, in which a bone has been twisted apart.
A microscopic bacterial organism in the Spirochaeta family that has a worm-like, spiral-shaped form and wiggles vigorously when viewed under a microscope. Treponema pallidum, the cause of syphilis, is a particularly well-known spirochete.
A test of the air capacity of the lung. The test utilizes a machine called a spirometer to measure the volume of air inspired and expired by the lungs.