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:

    “No one knows,
    the heart of a child,
    how it grows
    until it is too late.”
    —Hilda Doolittle (1886–1961)

    “Farewell, my Youth! for now we needs must part,
    For here the paths divide;
    Here hand from hand must sever, heart from heart,—
    Divergence deep and wide.”
    —Rosamund Marriott Watson (1863–1911)

    “I’m folding up my little dreams
    Within my heart tonight,
    And praying I may soon forget
    The torture of their sight.”
    —Georgia Douglas Johnson (1886–1966)