CURRENT CONTENTS:
Autophagia
Ejection Fraction (left ventricular)
Gamma Rays
Haversian canals
Homeostasis
Horseshoe kidney (congenital malformation)
Authors' Note: In disease states, including those producing congestive heart failure, the ejection fraction of the left ventricle, a measure indicating the strength of contraction, provides important information concerning prognosis (potential outcome) and the need for treatment.
The ejection fraction can be measured by echocardiography, magnetic resonance imaging, or several different nuclear (radio-isotope) techniques. These techniques measure the volume of the ventricle at the end of diastolic (relaxation) and systolic (contraction) phases of the cardiac cycle. Despite the name, the change during systole is generally given in medical jargon as the percent relative change, rather than as a true fraction; e.g. 60% is good, 30% is bad.
Authors' Note:
Authors' Note: For physiologists and physicians, the understanding of homeostatic mechanisms such as feedback loops, and how they get overwhelmed in disease, is critical. An example discussed here previously is regulation of thyroid hormone levels. Knowledge in this area has also expanded into the field of IT.
Authors' Note: Horseshoe kidney is a relatively common congenital malformation, occurring in 1/500 individuals. Also known as renal fusion, it results from the merging of two fetal kidneys in the pelvis during the stage of embryonic organ development and consequently failing to undertake their normal upward migration. Fortunately, health consequences are usually mild, if any; occasionally, one of the ureters becomes obstructed. The abnormal structure is often discovered incidentally during procedures, e.g. CT scanning or ultrasound, targeted at pelvic discomfort or unrelated symptoms (and of course, no normal kidneys are seen in their usual position).
GENERAL DIRECTIONS FOR WEB-EXPLORERS:
To resume the sequence of daily titillations on our related blog "Daily Illustrated Nonsense", click HERE. Once you arrive, you can select your time frame of interest from the calendar-based listings at the bottom of the page, and check the daily offerings for any month from the start of 2020 until December 2024.
As of December 2024, there are 1800 unique entries available on the daily blog, displaying individual poems (often illustrated) and wordplay, but also with some photo-collages and parody song-lyrics. Most of their key elements are also presented here on "Edifying Nonsense" in topic-based collections, such as this one. The "Daily" format also has the advantage of including some song-lyrics, videos and other material that are not shown here on this topic-based blog.