Yahoo Web Search

Search results

1. Dictionary

   Heart

   /härt/

   

   noun

   • 1. 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. Similar informal:ticker
   • ▪ the region of the chest above the heart: "holding hand on heart for the Pledge of Allegiance"
   • ▪ the heart regarded as the center of a person's thoughts and emotions, especially love, compassion, or loyalty: "hardening his heart, he ignored her entreaties" Similar emotionsfeelingssentimentssoulmindbosombreastloveaffectionpassionsympathypityconcerncompassion
   • ▪ one's mood or feeling: "they had a change of heart" Similar compassionsympathyhumanityfeeling(s)fellow feelingconcern for othersbrotherly lovetender feelingstendernessempathyunderstandingkindnesskindlinessgoodwillbenevolencehumanitarianism
   • ▪ courage or enthusiasm: "they may lose heart as the work mounts up" Similar enthusiasmkeennesseagernessspiritdeterminationresolutionresolvepurposecouragebackbonespinenervestomachwillwill powerfortitudebraverystout-heartednessinformal:gutsspunkgritbottlevulgar slang:balls
   • 2. the central or innermost part of something: "right in the heart of the city" Similar centercentral partmiddlehubcorenucleuskerneleyebosomnavelOpposite edge
   • ▪ the vital part or essence: "the heart of the matter" Similar essencequintessencecruxcorenubrootgistmeatmarrowpithsubstancesum and substanceessential partintrinsic naturekernelnucleusinformal:nitty-grittyOpposite peripherals
   • ▪ the close compact center of a head of a cabbage or lettuce.
   • 3. a conventional representation of a heart with two equal curves meeting at a point at the bottom and a cusp at the top.
   • ▪ one of the four suits in a conventional deck of playing cards, denoted by a red heart.
   • ▪ a playing card of the suit of hearts.
   • ▪ a card game similar to whist, in which players attempt to avoid taking tricks containing a card of the suit of hearts.
   • 4. the condition of agricultural land as regards fertility: "a well-maintained farm in good heart"

   verb

   • 1. like very much; love: informal "I totally heart this song"

   Word Origin Old Englishheorte, of Germanic origin; related to Dutch hart and German Herz, from an Indo-European root shared by Latin cor, cord- and Greek kēr, kardia.

   Scrabble Points: 8

   • H

     4

   • E

     1

   • A

     1

   • R

     1

   • T

     1

   Powered by Oxford Languages

   More Definitions, Word Origin & ScrabbleShow less

2. byjus.com › biology › human-heartHuman Heart - Anatomy, Functions and Facts about Heart - BYJU'S

   byjus.com › biology › human-heart

   • Cached

   The human heart is about the size of a human fist and is divided into four chambers, namely two ventricles and two atria. The ventricles are the chambers that pump blood and the atrium are the chambers that receive blood.

   • Video Duration: 77 min

   • Pulmonary circulation is a type of blood circulation responsible for carrying deoxygenated blood away from the heart, and to the lungs, where it is...
   • In systemic circulation, the heart pumps the oxygenated blood through the arteries to every organ and tissue in the body, and then back again to th...
   • The heart is a muscle, and it needs a constant supply of oxygenated blood to survive and work effectively. This is where coronary circulation fulfi...
   • The human heart is divided into four chambers, namely two ventricles and two atria. The ventricles are the chambers that pump blood and atrium are...
   • Left atrium Right atrium Left ventricle Right ventricle
   • The pericardium is a fibrous membrane that envelops the heart. It also serves a protective function by producing a serous fluid, which lubricates t...
   • The heart wall is made up of 3 layers, namely: Epicardium – This is the outermost layer of the heart. It is composed of a thin layer of membrane th...
   • The  blood vessels comprise: Veins – It supplies deoxygenated blood to the heart via inferior and superior vena cava, eventually draining into the...
   • Valves are flaps of tissues that are present in cardiac chambers between the veins. They prevent the backflow of blood. Examples include the atriov...

3. www.dictionary.com › browse › heart!~HEART Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › heart!~

   • Cached

   the hollow muscular organ in vertebrates whose contractions propel the blood through the circulatory system. In mammals it consists of a right and left atrium and a right and left ventricle cardiac. the corresponding organ or part in invertebrates. this organ considered as the seat of life and emotions, esp love.

4. www.kenhub.com › en › libraryHeart anatomy: Structure, valves, coronary vessels | Kenhub

   www.kenhub.com › en › library

   • Cached

   • Occupation: Medical Content

   • Video Duration: 10 min

   • Heart anatomy. The heart has five surfaces: base (posterior), diaphragmatic (inferior), sternocostal (anterior), and left and right pulmonary surfaces. It also has several margins: right, left, superior, and inferior
   • Heart valves. Heart valves separate atria from ventricles, and ventricles from great vessels. The valves incorporate two or three leaflets (cusps) around the atrioventricular orifices and the roots of great vessels.
   • Blood flow through the heart. The blood flow through the heart is quite logical. It happens with the heart cycle, which consists of the periodical contraction and relaxation of the atrial and ventricular myocardium (heart muscle tissue).
   • Coronary circulation. The heart must also be supplied with oxygenated blood. This is done by the two coronary arteries: left and right. Heart muscles work constantly (thank goodness!)

5. www.ncbi.nlm.nih.gov › pmc › articlesWhat Is the Heart? Anatomy, Function, Pathophysiology, and ...

   www.ncbi.nlm.nih.gov › pmc › articles

   Jun 4, 2018 · This knowledge answers the query about the heart by explaining the only valid definition of heart structure involves describing a mechanical architecture whose motion can account for all dynamic cardiac movements.

   • Author: Gerald D Buckberg, Navin C Nanda, Christopher Nguyen, Mladen J Kocica
   • DOI: 10.3390/jcdd5020033

   • Publish Year: 2018
   • Publication: J Cardiovasc Dev Dis. 2018 Jun; 5(2): 33.

6. www.healthline.com › human-body-maps › heartHeart Pictures, Diagram & Anatomy | Body Maps - Healthline

   www.healthline.com › human-body-maps › heart

   • Cached

   Mar 10, 2015 · The heart is a mostly hollow, muscular organ composed of cardiac muscles and connective tissue that acts as a pump to distribute blood throughout the body’s tissues.

7. www.hri.org.au › learn › your-bodyThe human heart • Heart Research Institute

   www.hri.org.au › learn › your-body

   • Cached

   Find out more about the human heart – the main organ of your circulatory system – and its essential role in the body.

8. dictionary.cambridge.org › learner-english › heartHEART | definition in the Cambridge Learner’s Dictionary

   dictionary.cambridge.org › learner-english › heart

   • Cached

   HEART meaning: 1. the organ inside your chest that sends blood around your body: 2. the centre of something: 3…. Learn more.