Human red blood cells destroy their cell nuclei to carry as much oxygen as possible and still stay small enough to fit through narrow blood capillaries and maximize oxygen delivery. So, they are cells that start with DNA but get rid of it through enucleation as they mature. 🤯🤯 red blood cell enucleation
You can read more about it here: frontiersin.org/articles/10.33…
Rings of actin pinch off the nucleus from the rest of the cell kinda like a rubber band rings of acting pinching of...
okay so do you wanna be a molecular biologist like me now lmao
by the way, the other blob in that picture is a white blood cell "eating" the expelled nucleus from the red blood cell... it is called a macrophage. They are kinda like the janitors of our immune systems

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More from @ravenscimaven

11 Jun
I was in an accessibility workshop and the person said the wrong way to do alt text is by not doing it at all. That really stuck with me. I challenge everyone to get in the habit of just trying to throw in at least one descriptive sentence in your picture posts. Takes one moment.
Sometimes I forget but I always try to write something.
This little nugget was what helped me get over my initial anxiety of doing things wrong. You get better over time. But just start somewhere and the more you practice the less time it takes. It becomes second nature. I’m sure there will be people in the thread with better advice!
Read 4 tweets
9 Jun
I want someone on the exact opposite part of the world to put a piece of bread on the ground with me to make an Earth sandwich
THIS is why we get PhDs 😭
who lives on the west coast of Australia?????
Read 7 tweets
9 Jun
Someone shared w me "queerspawn", a word for offspring of LGBTQ+ ppl. I have already shared that I have a trans parent. Knowing the importance of being/feeling accepted, it makes me so happy to see people proud to be who they are, unapologetically. Keep shining. Happy Pride y'all
The BEST thing that I can do for my parent is continuing to share my love and joy with them. Humans are all so much more similar than we give ourselves credit. We really owe it to each other to learn about our differences and appreciate them. Make space for them. Thrive together.
Read 4 tweets
4 May
“Only once did she mention race. There was no anger or finger-pointing.” was part of the “positive feedback” I got after a recent keynote. Yikes.

1) someone assumed I was an angry Black woman stereotype
2) Y’all want to hear our voices only if we cater to your white fragility
The fact that the university even sent that crap to me thinking it was a good reflection on their school just screamed so many red flags. I would never work there and I will never speak there again
My talks are rarely even centered on race like. Like... my talk had NOTHING to do with race AT ALL. This person really just up and wrote this about a talk that had nothing to do with race.
Read 13 tweets
9 Apr
Storytime: Over 100 years ago, a physician was treating a patient who could barely remember basic details of their own life. When the patient passed, the doctor examined the patients brain and found plaques and deformities all around the brain. 1/
The physician was Dr. Alzheimer, & the disease he was observing became known as Alzheimer’s disease. For a long time, we thought that becoming senile and losing your memory was simply a part of aging, however, in these cases there was actually physical brain damage occurring. 2/ A healthy brain next to a brain with severe Alzheimer’s
Alzheimer’s disease is a neurodegenerative disease, which is a big word that describes diseases that cause your neurons to lose their function or die. Neurons are the building blocks of our brain, our entire nervous system. 3/
Read 21 tweets
8 Apr
😃
Not bad for being a very sleep deprived graduate student!
shoutout to @yrblanc for another great photo!
Read 4 tweets

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