Category A - Subheadings

/physiology Used with organs, tissues, and cells of unicellular and multicellular organisms for normal function.

Electrophysiology of the endocardium
ENDOCARDIUM /*physiol
ELECTROPHYSIOLOGY

/physiopathology Used for function of organs or tissues in disease states.

Electrophysiologic abnormalities of the endocardium in endocarditis
ENDOCARDIUM /*physiopathol
ENDOCARDITIS /*physiopathol
ELECTROPHYSIOLOGY

/growth & development Used for the postnatal growth or development of organs or anatomical parts.

Growth rate of the leg bones in infants
LEG BONES/*growth
HUMANS (check tag)
INFANT (check tag)

/embryology Used with organs and regions for embryologic and fetal development.

Prenatal development of the human humerus
HUMERUS /*embryol
HUMANS (check tag)

/secretion Used for the discharge across the cell membrane, into the intracellular space or ducts, of endogenous substances resulting from the activity of intact cells of glands, tissues, or organs.

Secretion of thyrotropin by the anterior pituitary gland
PITUITARY GLAND, ANTERIOR /* secret
THYROTROPIN / *secret