A small, irregularly shaped bone found where two or more other bones meet in the skull; also known as the Wormian Bone.
Sustentacular Cell
A specialized Cell located in the outer layer of the seminiferous tubules that provides nutrition to sperm and secretes hormones; also known as Sertoli Cells.
Surfactant Cell
A special cell in the lungs that secrete Surfactant; The Septal Cell or Type II Cell.
Surfactant
Oily secretion from septal cells in the lungs that reduces surface tension.
Surface Tension
The weak attraction between molecules, ie the attraction between water molecules that make them for a drop.
Surface Anatomy
Study of general forms and superficial markings on the surface of the body.
Suprarenal Gland
Another term for Adrenal Gland.
Supporting Connective Tissue
Tissue that provides a strong, solid framework ie cartilage, bone etc.