Screenshot 2023-05-10 at 2.21.41 PM.png

Screenshot 2023-05-10 at 2.18.42 PM.png

Screenshot 2023-05-13 at 6.43.14 AM.png

Screenshot 2023-05-10 at 2.16.24 PM.png

Screenshot 2023-05-10 at 2.00.52 PM.png

Screenshot 2023-05-10 at 2.03.22 PM.png

Screenshot 2023-05-10 at 5.40.28 AM.png

Screenshot 2023-05-10 at 2.15.27 PM.png

Screenshot 2023-05-10 at 5.38.10 AM.png

Screenshot 2023-05-10 at 5.36.45 AM.png

full article

full article

full article Extracellular ATP, the ubiquitous adenine nucleotide, acts as a physiological regulator of the cardiovascular system by activating cell surface receptors. The latter are called P2 purinergic receptors (P2R), distinct from th

full article excerpt: The ubiquitous purine nucleotide adenosine 5′-triphosphate (ATP) plays a critical role in cellular metabolism and energetics. ATP is released into the extracellular space under physiologic and pathophysiologic

link to article excerpt: Sources of Extracellular ATP ATP is released as a co-transmitter from all types of nerve endings, RBCs, activated platelets, exercising skeletal muscles, ischemic and apoptotic cells, vascular smooth musc

source

link to article excerpts: Adenosine 5′-triphosphate (ATP) is found in every cell of the human body where it plays a critical role in cellular energetics and metabolism. ATP is released from cells under physiologic and pathophysiolo

source

source

Screenshot 2023-05-13 at 11.44.05 AM.png

full article

prev / next

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

· · · · · · · · · · · · · · · · · · · · ·

* -> TO INDEX PAGE 1 <- *

* -> TO INDEX PAGE 2 <- *

* -> TO INDEX PAGE 3 <- *

* -> TO INDEX PAGE 4 <- *

* -> TO INDEX PAGE 5 <- *

* visitor's guide *

Below each index page image is a single word which gives a hint to the subject on that webpage.

.

Clicking on any index page image opens a webpage, which most often contains an illustrated 1,000 word essay and an image collection. External links are provided to offer in-depth discussion of the subject.

.

*** The layout and organization of imagessays.com is a bit tangential by design, leading the visitor to an exploration of related subjects, informing in an unexpected manner, and so expanding the knowledge base of the viewer. ***

primary webpage: seeing

secondary webpage: marrow

annotated list of webpages: * annotated *

“Whenever I discovered something which was noteworthy,

I have felt it my duty to put down what I had discovered,

in order that it would become known to the educated world.”

Antonie van Leeuwenhoek

Letter of June 12, 1716

… see: microscope

“Sharing knowledge is the the greatest of all callings.

There is nothing like it in the land".”

The Instruction of Dua-Khety

… to his son, as he entered scribe school c. 2000 BC, Egypt - Middle Kingdom

… see: seeing

navigation

.

explanation of website design

* annotated index of selected webpages *

list of essays

list of external links