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Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

thing go
a separate and self-contained entity

part, piece go
a portion of a natural object

body part go
any part of an organism such as an organ or extremity

organ go
a fully differentiated structural and functional unit in an animal that is specialized for some particular function

contractile organ, contractor go
a bodily organ that contracts

muscle, musculus go
one of the contractile organs of the body

sphincter, anatomical sphincter, sphincter muscle
a ring of muscle that contracts to close an opening

noun.body

8 Subcategories

physiological sphincter go
a sphincter that is not recognizable at autopsy because its resting arrangement cannot be distinguished from adjacent tissue
anal sphincter, sphincter ani, musculus sphincter ani go
the sphincter muscle of the anus
urethral sphincter, musculus sphincter urethrae go
a striated sphincter muscle that constricts the urethra
bladder sphincter, musculus sphincter vesicae go
the sphincter muscle of the urinary bladder
musculus sphincter ductus choledochi go
the smooth muscle sphincter of the common bile duct
musculus sphincter ductus pancreatici go
the smooth muscle sphincter of the main pancreatic duct
pupillary sphincter, musculus sphincter pupillae go
a ring of smooth muscle surrounding the iris
pyloric sphincter, pyloric valve, musculus sphincter pylori go
the sphincter muscle of the pylorus that separates the stomach from the duodenum