Heart vs. Lung — What's the Difference?
Difference Between Heart and Lung
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Compare with Definitions
Heart
The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
Lung
The lungs are the primary organs of the respiratory system in humans and other animals including most tetrapods, a few fish, and some snails. In mammals and most other vertebrates, two lungs are located near the backbone on either side of the heart.
Heart
A hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there may be up to four chambers (as in humans), with two atria and two ventricles.
Lung
Either of two spongy, saclike respiratory organs in air-breathing vertebrates, occupying the chest cavity together with the heart and functioning to provide oxygen to the blood while removing carbon dioxide.
Heart
The central or innermost part of something
Right in the heart of the city
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Lung
A similar organ in some invertebrates, including spiders and terrestrial snails.
Heart
A conventional representation of a heart with two equal curves meeting at a point at the bottom and a cusp at the top.
Lung
(anatomy) A biological organ of vertebrates that controls breathing and oxygenates the blood.
Heart
The condition of agricultural land as regards fertility
A well-maintained farm in good heart
Lung
(in the plural) Capacity for exercise or exertion; breath.
He no longer has the lungs to play long rallies like he used to.
Heart
Like very much; love
I totally heart this song
Lung
That which supplies oxygen or fresh air, such as trees, parklands, forest, etc., to a place.
Heart
The chambered muscular organ in vertebrates that pumps blood received from the veins into the arteries, thereby maintaining the flow of blood through the entire circulatory system.
Lung
An organ for aërial respiration; - commonly in the plural.
My lungs began to crowlike chanticleer.
Heart
A similarly functioning structure in invertebrates.
Lung
Either of two saclike respiratory organs in the chest of vertebrates; serves to remove carbon dioxide and provide oxygen to the blood
Heart
The area that is the approximate location of the heart in the body; the breast.
Heart
The vital center and source of one's being, emotions, and sensibilities.
Heart
The repository of one's deepest and sincerest feelings and beliefs
An appeal from the heart.
A subject dear to her heart.
Heart
The seat of the intellect or imagination
The worst atrocities the human heart could devise.
Heart
Emotional constitution, basic disposition, or character
A man after my own heart.
Heart
One's prevailing mood or current inclination
We were light of heart.
Heart
Capacity for sympathy or generosity; compassion
A leader who seems to have no heart.
Heart
Love; affection
The child won my heart.
Heart
Courage; resolution; fortitude
The soldiers lost heart and retreated.
Heart
The firmness of will or the callousness required to carry out an unpleasant task or responsibility
Hadn't the heart to send them away without food.
Heart
A person esteemed or admired as lovable, loyal, or courageous
A dear heart.
Heart
The central or innermost physical part of a place or region
The heart of the financial district.
Heart
The core of a plant, fruit, or vegetable, such as a heart of palm.
Heart
The most important or essential part
Get to the heart of the matter.
Heart
A conventional two-lobed representation of the heart, usually colored red or pink.
Heart
A red, heart-shaped figure on certain playing cards.
Heart
A playing card with this figure.
Heart
Hearts (used with a sing. or pl. verb) The suit of cards represented by this figure.
Heart
A card game in which the object is either to avoid hearts when taking tricks or to take all the hearts.
Heart
(Slang) To have great liking or affection for
I heart chocolate chip cookies!.
Heart
(Archaic) To encourage; hearten.
Heart
(anatomy) A muscular organ that pumps blood through the body, traditionally thought to be the seat of emotion.
Heart
(uncountable) One's feelings and emotions, especially considered as part of one's character.
She has a cold heart.
Heart
The seat of the affections or sensibilities, collectively or separately, as love, hate, joy, grief, courage, etc.; rarely, the seat of the understanding or will; usually in a good sense; personality.
A good, tender, loving, bad, hard, or selfish heart
Heart
Emotional strength that allows one to continue in difficult situations; courage; spirit; a will to compete.
The team lost, but they showed a lot of heart.
Heart
Vigorous and efficient activity; power of fertile production; condition of the soil, whether good or bad.
Heart
(archaic) A term of affectionate or kindly and familiar address.
Listen, dear heart, we must go now.
Heart
Memory.
I know almost every Beatles song by heart.
Heart
(figurative) A wight or being.
Heart
A conventional shape or symbol used to represent the heart, love, or emotion: ♥ or sometimes <3.
Heart
A playing card of the suit hearts featuring one or more heart-shaped symbols.
Heart
(cartomancy) The twenty-fourth Lenormand card.
Heart
(figurative) The centre, essence, or core.
The wood at the heart of a tree is the oldest.
Buddhists believe that suffering is right at the heart of all life.
Heart
To be fond of. Often bracketed or abbreviated with a heart symbol.
Heart
To give heart to; to hearten; to encourage.
Heart
To fill an interior with rubble, as a wall or a breakwater.
Heart
To form a dense cluster of leaves, a heart, especially of lettuce or cabbage.
Heart
A hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
Why does my blood thus muster to my heart!
Heart
The seat of the affections or sensibilities, collectively or separately, as love, hate, joy, grief, courage, and the like; rarely, the seat of the understanding or will; - usually in a good sense, when no epithet is expressed; the better or lovelier part of our nature; the spring of all our actions and purposes; the seat of moral life and character; the moral affections and character itself; the individual disposition and character; as, a good, tender, loving, bad, hard, or selfish heart.
Hearts are dust, hearts' loves remain.
Heart
The nearest the middle or center; the part most hidden and within; the inmost or most essential part of any body or system; the source of life and motion in any organization; the chief or vital portion; the center of activity, or of energetic or efficient action; as, the heart of a country, of a tree, etc.
Exploits done in the heart of France.
Peace subsisting at the heartOf endless agitation.
Heart
Courage; courageous purpose; spirit.
Eve, recovering heart, replied.
The expelled nations take heart, and when they fly from one country invade another.
Heart
Vigorous and efficient activity; power of fertile production; condition of the soil, whether good or bad.
That the spent earth may gather heart again.
Heart
That which resembles a heart in shape; especially, a roundish or oval figure or object having an obtuse point at one end, and at the other a corresponding indentation, - used as a symbol or representative of the heart.
Heart
One of the suits of playing cards, distinguished by the figure or figures of a heart; as, hearts are trumps.
Heart
Vital part; secret meaning; real intention.
And then show you the heart of my message.
Heart
A term of affectionate or kindly and familiar address.
Heart
To give heart to; to hearten; to encourage; to inspirit.
My cause is hearted; thine hath no less reason.
Heart
To form a compact center or heart; as, a hearting cabbage.
Heart
The locus of feelings and intuitions;
In your heart you know it is true
Her story would melt your bosom
Heart
The hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions pump blood through the body;
He stood still, his heart thumping wildly
Heart
The courage to carry on;
He kept fighting on pure spunk
You haven't got the heart for baseball
Heart
An area that is approximately central within some larger region;
It is in the center of town
They ran forward into the heart of the struggle
They were in the eye of the storm
Heart
The choicest or most essential or most vital part of some idea or experience;
The gist of the prosecutor's argument
The heart and soul of the Republican Party
The nub of the story
Heart
An inclination or tendency of a certain kind;
He had a change of heart
Heart
A plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines;
He drew a heart and called it a valentine
Heart
A firm rather dry variety meat (usually beef or veal);
A five-pound beef heart will serve six
Heart
A positive feeling of liking;
He had trouble expressing the affection he felt
The child won everyone's heart
Heart
A playing card in the major suit of hearts;
He led the queen of hearts
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