Class BODY-SUBSTANCE

Extracellular material, or mixtures of cells and extracellular material, produced, excreted, or accreted by the body. Included here are substances such as saliva, dental enamel, sweat, and gastric acid.
Subclass-Of: Substance
Axioms:
(Slot-Value-Type Body-Substance Derivative-Of Tissue)

(Slot-Value-Type Body-Substance Surrounds Embryonic-Structure)

(=> (Body-Substance ?Self)
    (And (Exists (?A)
                 (And (Product-Of ?Self ?A) (Organism-Function ?A)))
         (Forall (?B)
                 (=> (Constituent-Material ?Self ?B)
                     (Or (Cell ?B) (Intercellular-Matrix ?B))))
         (Exists (?C)
                 (And (Piece-Of ?Self ?C)
                      (Or (Body-Substance ?C)
                          (Organism ?C)
                          (Anatomical-Structure ?C))))
         (Forall (?D)
                 (=> (Constituent-Material-Of ?Self ?D)
                     (Or (Anatomical-Structure ?D) (Organism ?D))))))