Heart

The heart is a hollow, muscular organ in vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods.
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Heart
The heart and lungs (from an older edition of Gray's Anatomy)
The heart (Latin cor) is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions.
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3. Heart
Natriuretic Peptides
In response to a rise in blood pressure, the heart releases two peptides: ...
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We have examined the effect of dietary polyunsaturated fatty acids (PUFAs) upon mitochondrial Ca2+ content and dehydrogenase activation in the rat heart.
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heart -- Muscular pump which circulates the blood.
hemoglobin -- protein complex found in the blood of most chordates and the roots of certain legumes.
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heartwood Inner rings of xylem that have become clogged with metabolic by-products and no longer transport water; visible as the inner darker areas in the cross section of a tree trunk.
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Heart abnormalities, such as irregular heart rhythms or congestive heart failure
Impotence
Early menopause ...
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Heart rate and speed are both referred to as variables. Heart rate depends on speed, so it is called a dependent variable. Speed does not depend on heart rate; it is an independent variable.
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heartwood The wood found in the center of a tree trunk; often a darker color due to the accumulation of resins, oils, gums, and other metabolic by-products, which prevent water movement through this tissue.
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heart
The muscular pump of the blood circulatory system.
Covered in Lab 16 Vertebrate Dissection II ...
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a heart chamber receiving blood from the circulation and pumping it into a ventricle
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
What Topic Is Your BIOLOGY Paper On?
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The Lionheart Tour 1979
Empire, Liverpool, UK (3 April)
Hippodrome, Birmingham, UK (4 April)
Hippodrome, Birmingham, UK (5 April)
New Theatre Oxford, UK (6 April)
Gaumont Southampton, UK (7 April)
Hippodrome, Bristol, UK (9 April) ...
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[Gk. kardio, heart + L. vasculum, a small vessel]
A closed circulatory system with a heart and branching network of arteries, capilleries, and veins.
carnivore ...
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Whether you have a 50% possibility of heart disease, and a 20% possibility of diabetes, and so forth. So for each individual, we'll be able to write a probabilistic health history.
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Homologous (or general) recombination is at the heart of genetics.
It is the basis for the construction of genetic maps.
Understanding of the mechanisms of homologous recombination has thus been widely sought after.
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Drugs that block the action of certain hormones on the heart. Beta blockers reduce the heart rate and the force of muscle contraction, thereby reducing the oxygen demand of heart muscles.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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left atrium: the chamber of the human heart that receives oxygen-rich blood via the pulmonary vein.
left ventricle: the chamber of the human heart in which oxygen-rich blood enters through the bicuspid valve that leads into the aorta.
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heart disease, diabetes, and some cancers). Although such disorders are inherited, they depend on the simultaneous pressence of several alleles; thus the hereditary patterns are usually more complex than those of single-gene disorders.
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[Gr. epi - on, upon; Gr. myo - muscle; Gr. kardia - heart] The outer, thicker layer of the heart rudiment which arises from splanchnic mesoderm and fuses with the endocardium to form the heart wall.
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CardiovascularSystem another name for the circulatory system consisting of heart arteries and veins
(cardio = heart; vascul = a little vessel)
Carnivore animal which eats other animals
(carni = flesh; vore = to eat devour) ...
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A rare autosomal recessive disorder that leads to dwarfism, extra fingers, and malformations of the heart, among other abnormalities.
explained:
Listen to a detailed explanation.
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heart disease, diabetes, and some cancers). Although such disorders are inherited, they depend on the simultaneous presence of several alleles; thus the hereditary patterns are usually more complex than those of single- gene disorders.
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And at the heart of it all lies nothing more than Charles Darwin's simple, powerful insight: that the random chance of variation, coupled with the law of selection, is a problem-solving technique of immense power and nearly unlimited application.
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Noonan syndrome -- a condition characterized by short stature and ovarian or testicular dysfunction, mental deficiency, and lesions of the heart.
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