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Wednesday, January 10th, 2018 10:03 AM
A Windy Wednesday
19 days in a row with good sleep. Last night wasn't so hot. Much tossing and turning. I remember it being 3am, and must've drifted off for a couple hours. Some actual shuteye in there but not much!
Well, a big part of it is this weather. Unrelentingly dark and cloudy all week. Plus yesterday was a stay-at-home day, when perhaps it should've been a more active one, with some kinda trip out of the house.
I have a gig this month, on the 19th, and it looks like it's gonna be nice and warm. Of course, between now and then this may change. But for now, a little bit of security.
Yesterday was a good blogging day. A new one up on
Mr Know-it-all. And more lamebrained ideas for more posts.
Also a good reading day. There were a couple items in there I got more clarification on, missing pieces of the puzzle.
Arteries bring the blood back from the heart to the rest of the body. As they go, they become smaller- to 'arterioles' and finally to capillaries. Capillaries are the smallest blood vessels, and make many connections in the body.
So capillaries gradually get bigger, growing into venules and finally veins. All veins, with the exception of the Pulmonary Vein, return the carbon-dioxide laden blood to the heart, where it's switched in the lungs for oxygen-rich blood- which travels throughout the body, leaves the heart through Arteries. Back where we started.
I had thought that arteries were always arteries and veins were always veins. Silly me.
Also, some things about the kidneys. The basic structural unit is the Nephron, from the Greek nephros, meaning kidney. A nephron is not a cell, as I'd thought. It's made up of something called a glomerulus, which is a tuft of 6-8 capillaries, which is attached to a capsule called Bowman's Capsule.
The nephron has four functions: _____(can't remember), reabsorption, secretion and excretion. Basically, it makes urine, which drains into the Renal Pyramids and through what's called Minor Calyces, then Major Calyces, then to the renal pelvis, which becomes a ureter- a tube leading to the bladder.
More to learn.
Well anyway, that's my news for today. Thanks for reading, whoever-reads-this. More later.