Hey guys, I have a mild problem with spotting vascular redistribution to upper lobes in heart failure. I started working at radiology at cardiology institute and since we have a lot of patients with heart failure, I have a hard time deciding if there is vascular redistribution or not. I've had many patients, in whom two different older radiologists said two different things, one said there is a redistribution to upper lobes, one did not. Do you have any trick how to do it invariably and objectively? Thanks a lot!
Would it be possible for an organism to develop a second head with nerve clusters and such given the right conditions, and if so, what would be the ideal conditions?
Certain aspects of cephalization make sense (of course you'd want the sense organs on the front of a mobile animal, and likewise it makes sense for the mouth to be at the front / anus at the rear), but is there any evolutionary advantage to lumping the brain in with the sense organs / mouth / etc? If anything, it seems that the brain should be placed in the rear, the last portion to encounter a novel environment as the animal moves, and therefore more protected than the front.
Hello! I have a new question today.
In a new discussion I had, I had linked this article titled, "The Human Nervous System: Evidence of Intelligent Design", in support of evidence for a designer without using the Bible.
In the article, one of the points made, is the idea that the organs of a creature need a brain to function. However the brain needs nerve cells to communicate with parts of the body, including the vertebrae. So if the brain needed nerve cells and if the nerve cells needed a reason to evolve, then there seems to be a contradiction in what order these things came about. Your brain would need nerve cells, but you nerve cells need the brain. A big "chicken or egg" scenario.
I was sent this wiki article, explaining a process called Cephalization.
The debater highlighted this portion:
> Neurons developed as specialized electrical signaling cells in multicellular animals, adapting the mechanism of action potentials present in motile single-celled and colonial eukaryotes. Simple nerve nets seen in animals like cnidaria evolved first, followed by nerve cords in bilateral animals - ventral nerve cords in invertebrates and dorsal nerve cords surrounded by a notochord in chordates. Bilateralization led to the evolution of brains, a process called cephalization.
This is slightly over my head, because I have never heard of this process, let alone the ability to decipher new knowledge and spit out a reply. I am wondering a couple of things:
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Does cephalization discredit the first article I posted, where the author spoke about the "chicken and egg" scenario? (It's in the first three paragraphs.)
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Could someone explain to me what cephalization does and what evidence we have for it? (I cannot seem to find concrete answers on the net.)
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Is there better evidence, than the one I used, for a designer without using the Bible?
Disclaimer: I could be missing something very obvious, and I am no scientist.
Thanks to those who reply.
Just came off a busy night shift in ED and struggled with this. I’m mostly fine with inserting IVs in the AC or lower forearm but when I have to insert either in the hand or the wrist, I always get flash but cannot advance the catheter. It blows almost every time. I know it’s a technique issue because I see the more experienced nurses get them. Any tips? Is it about angle?
Thank you.
Basically the title. Doing another reread and noticed that cranium rats had their names changed to cephalic rats and was wondering if I missed any other changes.
I just got back from my 36 week appointment and my little guy is breech. My doctor is recommending we do an external cephalon version to try and manually turn him to avoid a c-section. Have any of you experienced this procedure? Was it successful? I was told that it is very uncomfortable and there is a risk that they may need to do an emergency c-section if things don’t go as planned. I’m trying to weigh out the pros and cons but honestly have no idea what to do! Any advice would be greatly appreciated!
I’m feeling a tad bit defeated here. I’ve been told “there’s time don’t worry” for the past few weeks, but now it’s not looking like this frank breech boy is going to flip. I was told by my doctor today that I’m not a candidate for External Cephalic Version because my amniotic fluid levels have been on the lower end the last few weeks (around the 15th percentile). Plus I don’t know how relevant it is, but I’m about 1.5 centimeters dilated.
I’ve been trying to be sure I’m hanging out on my hands and knees for a few minutes before bed and leaning forward to try and make space for him to flip.
My doctor mentioned today I could see a chiropractor to do the Webster technique, but she wasn’t sure how helpful it’d be. Has anyone tried it this far along and had it help?
Is there anything anyone did that helped their baby flip? I know no matter what this baby is going to have to come out and it has to be whatever was is safest, but I really want to avoid having a C section if I can. I know there’s no shame in it, it’s just not what I’ve been mentally preparing for over the last 9 months.
Well, two questions:
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could you feel when baby's head passed by the ischial spines?
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could you feel baby's arms and legs leave your vagina as they birthed? If not, what did it feel like to birth the body?
I've talked to a couple of friends about this, and nobody else has experienced it before/didn't remember! Is it possible I just imagined these sensations?? Please tell me, am I an oddball?
Kennel assistant here. I’ve been drawing blood for a month or so now and have actually been getting it almost every time. I have tried it 3 times with the dog standing and I literally have never been able to hit it.
Any tips for hitting the vein when the dog is standing?
What say you?
Who has had an External Cephalic Version (ECV)? I am 37.5 weeks and just found out baby is breeched and have a version scheduled Monday. Was yours a success? How painful?
So I was just wandering, if I were to cut my cephalic vein complete in half would I die? If I were to die what would happen if I just cut a bit off it like half of 3/4 of it? And what if I put a hole through it with needle?
??
Just came off a busy night shift in ED and struggled with this. I’m mostly fine with inserting IVs in the AC or lower forearm but when I have to insert either in the hand or the wrist, I always get flash but cannot advance the catheter. It blows almost every time. I know it’s a technique issue because I see the more experienced nurses get them. Any tips? Is it about angle?
Thank you.
