scio

" to know " a collection of scientific illustrations

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Endoscope anatomy

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Flowchart of the brain and its major divisions

From: A Primer Of Drug Action 12th edition, Worth Publishers. Copyright ©  2001, 2005, 2008, 2011 by Worth Publishers.

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Phylogenetic Development of Vertebrate Brains

From: Textbook Of Veterinary Anatomy 4th Edition, Saunders Elsevier. Copyright ©  2010 by Saunders, an imprint of Elsevier Inc.

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Insect nervous system

From: Bugs Rule! An introduction to the world of insects. Whitney Cranshaw, Richard Redak. Princeton University Press. Copyright © 2013 by Princeton University Press.

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Drug reinforcing circuit

From: Basic Neurochemistry Seventh Edition, Elsevier Academic Press, Copyright © 2006, American Society for Neurochemistry. All rights reserved.

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For Halloween, you may well be making use of fake blood as part of your costume. Blood’s always red, right? WRONG.  Here’s a look at the range of different colours of blood in different organisms, and the chemicals behind them. Larger image and more info here: http://wp.me/p4aPLT-Fc

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Normal Saturations (O2) And Pressure

From: The Netter collection of medical illustrations: Cardiovascular System, Volume 8, Second Edition. Copyright © 2014 by Saunders, an imprint of Elsevier Inc.

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The vicious cycle of osteolytic metastasis

From: The Biology Of Cancer, Robert A. Weinberg. First Edition, © 2007 Garland Science, Taylor & Francis Group, LLC

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Menstruation Rag

From: Come Star Sani - La Donna Medico di Casa Casa, Anna Fischer Duckelmann. Editrice Casanova Torino (Fourties)

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Neurotic excoriations: back Excoriations of the upper, mid-back and gluteal areas and linear areas of postinflammatory hyperpigmentation, crusting, and scarring in a 66-year-old diabetic female. Lesions have been present for at least 10 years but the ulcerated crusted lesion resolved with cloth tape occlusion. Once the protection was removed, the patient resumed excoriating the sites.

From: Fritzpatrick's Color Atlas and Synopsis of Clinical Dermathology 6th Edition, 2009 McGraw Hill. Copyright © 2009, 2005, 2001, 1997, 1993, 1983 by The McGraw-Hill Companies. All rights reserved.

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The two cells hypothesis

A. The preovulatory follicle produces estradiol through a paracrin interaction between the theca and granulosa cells. Theca cells provide the granulosa cells with androstenedione in order to produce estradiol. Granulosa cells express the right enzymes that convert androstenedione to estradiol (P450 aromatase, 17β hydroxysteroid dehydrogenase1). 

B. In corpus luteum, granulosa cells obtain vessels, LH receptors and enzymes for progesterone synthesis. Theca cells are the source of androstenedione that is necessary for the production of estradiol in granulosa cells. Gonadotropins, steroidogenic factor 1 (SF-1) and steroidogenic acute regulatory protein (StAR) have fundamental functions in ovarian steroidogenesis. (ATP, adenosine triphosphate; cAMP, cyclic adenosine monophosphate; FSH-R, follicle stimulating hormone receptor; LH-R, luteinizing hormone receptor; P450 arom, P450 aromatase; 17β-HSD-I, 17-β hydroxysteroid dehydrogenase-I). (with permission of Larsen et al., eds. The physiology and pathology of the female reproductive axis. En: Williams Textbook of Endocrinology. Saunders; 2003; 604.)

From: Greenspan Endocrinologia Basica y Clinica Novena Edición, 2012 McGraw Hill; Translated from the ninth English edition of: Greenspan´s Basic & Clinical Endocrinology Copyright © 2011 by The McGraw-Hill Companies, Inc.

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Events of the cardiac cycle for left ventricular function, showing changes in left atrial pressure, left ventricular pressure, aortic pressure, ventricular volume, the electrocardiogram, and the phonocardiogram.

From: Guyton and Hall Textbook of Medical Physiology 12th edition. Elsevier 2011.

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“Ossification in Muscles of Trunk in a case of generalised Ossifying Myositis.”

From: Miles, Alexander. “Manual of Surgery Volume First: / General Surgery. Sixth Edition” 1921, Oxford Medical Publications.

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The Bartleby.com edition of Gray’s Anatomy of the Human Body features 1,247 vibrant engravings—many in color—from the classic 1918 publication.