Heart

Heart

The heart is a hollow muscle that pumps blood throughout the blood vessels by repeated, rhythmic contractions. It is found in all animals with a circulatory system (including all vertebrates).

Read more about Heart.

Famous quotes containing the word heart:

    My heart pumps yet the poison draught of you.
    William Empson (1906–1984)

    And at his heart there may have gnawed
    Sick memories of a dead faith foiled and flawed
    Edwin Arlington Robinson (1869–1935)

    At school boys become gluttons and slovens, and, instead of cultivating domestic affections, very early rush into the libertinism which destroys the constitution before it is formed; hardening the heart as it weakens the understanding.
    Mary Wollstonecraft (1759–1797)