The midbrain comprises the tectum, tegmentum, the cerebral aqueduct, and the cerebral peduncles, as well as several nuclei and fasciculi. Caudally the midbrain adjoins the metencephalon (afterbrain) (pons and cerebellum); while rostrally it adjoins the diencephalon (thalamus, hypothalamus, etc.) Specifically, the midbrain consists of: Tectum
table (plural tables) 1  Furniture with a top surface to accommodate a variety of uses. 2  A two-dimensional presentation of data. ( 3 music) The top of a stringed instrument, particularly a member of the violin family: the side of the instrument against which the strings vibrate.
Singular means just one of the person, animal or thing which the noun refers to. Plural means more than one. Forming the plural of nounsThe rules for making the plural of nouns depend on the spelling and pronunciation. Nouns used only in the singularSome nouns are used only in the singular, even though they end in -s. Nouns used only in the pluralSome nouns only have a plural form. They cannot be used with numbers.