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adenosine triphosphate; physiology Early experiments on blood circulation glycolysis knee-jerk reflex Autonomic nervous system steroid hormones Neurohormones are released from neurosecretory nerve cells. These nerve cells are considered true endocrine cells because they produce and secrete hormones that enter the circulation to reach their target cells. Molecular view of the cell membrane
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adenosine triphosphate; physiology
Early experiments on blood circulation
glycolysis
knee-jerk reflex
Autonomic nervous system
steroid hormones
Neurohormones are released from neurosecretory nerve cells. These nerve cells are considered true endocrine cells because they produce and secrete hormones that enter the circulation to reach their target cells.
Molecular view of the cell membrane
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Key People

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Joseph, Freiherr von Mering
German physician
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Oskar Minkowski
German physiologist
Helmholtz.
Hermann von Helmholtz
German scientist and philosopher
Claude Bernard, detail of a lithograph by A. Laemlein, 1858
Claude Bernard
French scientist
Ivan Pavlov
Ivan Pavlov
Russian physiologist
Galen of Pergamum
Galen
Greek physician
Lazzaro Spallanzani, detail of an oil painting by an unknown artist; in the collection of the University of Pavia, Italy.
Lazzaro Spallanzani
Italian physiologist
Helmont, Jan Baptista van
Jan Baptista van Helmont
Belgian scientist
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Johannes Müller
German physiologist
Jagadish Chandra Bose
Jagadish Chandra Bose
Indian plant physiologist and physicist
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Nicolas C. Paulescu
Romanian physiologist
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David Julius
American physiologist
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Julius von Sachs
German botanist
Ferid Murad
Ferid Murad
American pharmacologist
Sir Charles Sherrington.
Sir Charles Scott Sherrington
British physiologist
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Louis Ignarro
American pharmacologist
Albrecht von Haller, detail of an engraving by Ambroise Tardieu after a portrait by Sigmund Freudenberger
Albrecht von Haller
Swiss biologist
Sir John Eccles.
Sir John Carew Eccles
Australian physiologist
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Robert F. Furchgott
American pharmacologist
Starling
Ernest Henry Starling
British physiologist

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Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.
Characteristics of the Human Body
greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)
Biology Bonanza