Final answer:
The term 'portal triads' refers to a grouping of vessels and ducts within the liver, including a branch of the hepatic artery, hepatic portal vein, and bile duct. In chemistry, 'triads' in a 'trigonal bipyramidal' configuration pertain to the atom arrangement around a central atom in a molecule.
Step-by-step explanation:
The phrase 'portal triads' is biologically associated with the structural organization of the liver. Portal triads refer to the arrangement of key vessels and ducts at the corners of a liver lobule. Each portal triad typically contains three main components: a branch of the hepatic artery, a branch of the hepatic portal vein, and a bile duct.
In the context of chemistry, when discussing trigonal bipyramidal configurations or hybrid orbitals, 'triads' refer to the arrangement of atoms or groups of atoms around a central atom in a molecule. Specifically, in a trigonal bipyramidal shape, three groups form a flat triangle with 120° angles between each pair and the central atom, while two other groups are positioned at the apexes of pyramids, one above and one below the triangular plane.