Discover and read the best of Twitter Threads about #histology

Most recents (3)

Bench to bed series: Lung COPD part 3/3
#scRNAseq paper: Human distal airways contain a multipotent secretory cell that can regenerate alveoli
1. RASCs (new cell-type) + #stemcell properties in distal airways 2. faulty RASC-to-AT2 transformation in COPD
#Bioinformatics #meded Image
Read 4 tweets
New Paper: 1st dinosaur from #IsleofEigg! We describe a limb bone, & attribute it to a Middle #Jurassic stegosaur! Thread👇 [1/7] #StEiggosaurus #Fossils #Scotland #dinosaurs #FossilFriday
I discovered the bone on @NatGeo funded #fieldwork in 2017. #IsleofEigg is known for #Jurassic marine reptiles & fish #fossils (found by Hugh Miller & others). It was collected by a team frm @GeosciencesEd & Staffin Dinosaur Museum. #StEiggosaurus [2/7]
The bone was badly eroded, but @MrIchthyosaurus carefully prepared it for the team to study. We combined our expertise in #Mesozoic reptile #anatomy and bone microstructure (#histology), to narrow down the identification. #StEiggosaurus #fossils [3/7]
Read 6 tweets
1/5 HPotD: Histology of the Testis, resin section, H&E.

The Seminiferous tubules are surrounded by several layers of myoid (contractile) cells, outside of the basement membrane, forming its wall. Sitting on the basement membrane are the Nurse cells (N) and spermatogonia (Sp).
2/5 HPotD (cont.): The spermatogonia, the stem cells of spermatogenesis, divide, differentiate and push past the blood-testis barrier (tight junctions between Nurse cells) to move from the basal compartment to the adluminal compartment. They then enter into Meiosis I to become
3/5 Primary spermatocytes (PS). These are the large cells with the large, round, leopard-print nuclei. These cells complete meiosis I to produce two secondary spermatocytes which enter into meiosis II to produce four spermatids. The spermatids then undergo a morphological change
Read 5 tweets

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