Synonyms, Related Subjects, Ideas for Medical Photos Human Nervous Systemhuman and skull, Human Digestive System, Human Fleas, Human Intestine, Human Jaw Bone, Human Life Cycle, Human Pancreas, Human Rna, human skeleton, |
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Human Nervous System Medical Photos from Photo Researchers |
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Human Nervous System Medical Photos from Phototake USA |
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Human Nervous System Medical Photos from National Geographic Images |
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 INTRODUCTION: Since 1983 inexplicably large numbers of dead and dying common l oons (Gavia immer) have been found along Floridas Gulf Coast. Under threat fr om acid rain, lake pollution, and human encroachment, their numbers are declini ng elsewhere as well. Lake acidification has resulted in fewer fish, the birds principal f ood. More insidiously, it increases the rate at which mercury in ponds is toxi fied, the poisonous methylmercury enters the food chain and is eventually inges ted by the loon. It attacks the birds nervous system, hindering its ability to feed and reproduce. ----- LEGEND: A swimming male loon in breeding plumage emits a trem olo (call). Known for their haunting nocturnal cries, which include yodels as well as tremo los, loons will often engage in antiphonal calling, creating an unforgettable c horus. |
 INTRODUCTION: Since 1983 inexplicably large numbers of dead and dying common l oons (Gavia immer) have been found along Floridas Gulf Coast. Under threat fr om acid rain, lake pollution, and human encroachment, their numbers are declini ng elsewhere as well. Lake acidification has resulted in fewer fish, the birds principal f ood. More insidiously, it increases the rate at which mercury in ponds is toxi fied, the poisonous methylmercury enters the food chain and is eventually inges ted by the loon. It attacks the birds nervous system, hindering its ability to feed and reproduce. ----- LEGEND: Close view of a mated pair of common loons swimming i n tandem in a lake or pond. The birds are in breeding plumage. |
 INTRODUCTION: Since 1983 inexplicably large numbers of dead and dying common l oons (Gavia immer) have been found along Floridas Gulf Coast. Under threat fr om acid rain, lake pollution, and human encroachment, their numbers are declini ng elsewhere as well. Lake acidification has resulted in fewer fish, the birds principal f ood. More insidiously, it increases the rate at which mercury in ponds is toxi fied, the poisonous methylmercury enters the food chain and is eventually inges ted by the loon. It attacks the birds nervous system, hindering its ability to feed and reproduce. ----- LEGEND: A tiny chick is fed by its parent as they bob on a la ke or pond -- perhaps as a reward for venturing into the water on its own. The adult wears breeding plumage in this extraordinarily charming picture. |
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Human Nervous System Medical Photos from IPNstock |
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 Digital Archive Japan / DAJ, Andreas Vesalius, 16th century Flemish anatomist. Vesalius (1514-1564) great work on anatomy De Humani Corporis Fabrica (On the Structure of the Human Body) (1543) was a landmark, with accurate depictions of parts of the body, including the nervous system. Vesalius based his work on dissection and personal observation, disproving the belief that because, in Genesis, God created Eve from Adams rib, men had one less rib than women. He contradicted Aristotles teaching that the heart is the seat of the emotions, replacing it with the brain and the nervous system. After Jan Stevan Calcar (c1499-1546). |
 Digital Archive Japan / DAJ, Andreas Vesalius, 16th century Flemish anatomist, c1789-c1798. Vesalius (1514-1564) great work on anatomy De Humani Corporis Fabrica (On the Structure of the Human Body) (1543) was a landmark, with accurate depictions of parts of the body, including the nervous system. Vesalius based his work on dissection and personal observation, disproving the belief that because, in Genesis, God created Eve from Adams rib, men had one less rib than women. He contradicted Aristotles teaching that the heart is the seat of the emotions, replacing it with the brain and the nervous system. From Essays in Physiognomy by JK Lavater. (London, 1789-1798). |
 Digital Archive Japan / DAJ, Descartes idea of how eye passes impulse to brain and so directs a voluntary movement, 1692. French philosopher and scientist Rene Descartes (1596-1650) believed all nerves to be hollow From Descartes Opera Philosophica, 1692. |
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