Lung: alternatives and connections

The whitish mass of soft matter (the center of the nervous system, and the seat of consciousness and volition) which is inclosed in th…

The fluid which circulates in the principal vascular system of animals, carrying nourishment to all parts of the body, and bringing aw…

The hard, calcified tissue of the skeleton of vertebrate animals, consisting very largely of calcic carbonate, calcic phosphate, and g…

A hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.

The place or part where two things or parts are joined or united; the union of two or more smooth or even surfaces admitting of a clos…

A glandular organ which excretes urea and other waste products from the animal body; a urinary gland.

One who, or that which, lives.

An organ which, by its contraction, produces motion.

One of the whitish and elastic bundles of fibers, with the accompanying tissues, which transmit nervous impulses between nerve centers…

An instrument or medium by which some important action is performed, or an important end accomplished; as, legislatures, courts, armie…

The external membranous integument of an animal.

A sharp appendage to any of a plant; a thorn.

An enlargement, or series of enlargements, in the anterior part of the alimentary canal, in which food is digested; any cavity in whic…