Description of the histology of bone tissue using images from our lab. Recorded at Glen Oaks Community College, Centreville, Michigan by Dr Ren Allen Hartung.
Thank you sir, I'm an Anatomy and Physiology student in highschool and this helped me prepare for our lab that we had to do. When I got to class today and we started analyzing the Bone Tissue, I was overprepared :)) And I got extra credit for my test too :)))
Inside lacunae there are osteocytes. My understanding is that osteoblasts would be seen on the surface of the bone tissue. The osteoblasts form bone matrix, and if the become embedded in that matrix they turn into osteocytes. Osteoclasts I think are found on the bone surface and they break down bone matrix.
I almost had a heart attack she you said chondrocytes differentiate into osteocytes lol, but you corrected it after all ! :) thanks for the helpful video
Thanks for these videos. Saw all of the videos on the skeletal system and they really helped me a lot on the exam and on understanding the skeletal system in the human body. Thanks Dr. Hartung!
Good morning Dr. Hartung :*) Thank you very much for your informative video. I've learned a lot. I'm currently in a Histology Program at my University and I am already half-way through it. I will definitely be following up with your videos. Again, thank you. I've learned a lot and you've clarified this info for me :*) Have a blessed day. Grace C
By the way, it is probably much more complicated than this. Under the microscope it looks like newer osteons grow into older osteons, taking over the space of the older osteon. When this is happening (if that is they way it happens) I don't know what cells are breaking down the matrix of the old osteon and building the lemellae of the new osteon.
First thanks for the deep explanation it was really helpful for my histology exam :) I had one question, about the haversian canals , are they different from Central canals or are they the same or (same thing different term) of the Central canals ? Thanks again :)
Osteons are microscopic arrangements of hardened bone matrix and living cells. They are the basic structure of compact bone. The osteocytes are individual living cells that create, live in, and maintain the osteons. The "cyte" or "cyto" part of the word osteocyte tells us that these are cells.... Cytology means the study of cells. Here's another one... The word myocyte... "myo" means muscle and "cyte" means cell... So myocyte means muscle cell... "osteo" means bone so "osteocyte" means bone cell. Hope this helps.
I encountered the same problem recently. Tried changing the blade, correcting the angle and there was no change until we decided to try cooling the samples in the freezer instead of on the cooling plate and the problem of breaking bone tissue was solved. This might probably be late, but I hope it'll help someone else in the future.
thank you very much but im just wondering if lacuna and osteoplasts is the same thing? according to my book, osteocytes are in osteoplasts and chondrocytes are in lacunae...
I am not familiar with the term osteoplast... so I looked it up and it seems that the word osteoplast is just another spelling of osteoblast (bone matrix building cells). What may be going on here is that osteoplast (osteoblast) cells turn into osteocytes after they have surrounded themselves with bone matrix. The mature osteocyte lives in that cavity/compartment (lacuna) that was built by the ostoeplast (osteoblast). I hope that helps.
Yes, lacuna and osteplasts are the same thing.Is the space in which the osteocites, the mature bone cells live in.There can be one osteocyte in a lacuna, or more, forming izogene groups.On the other hand, the osteoblasts are the young bone cells, which will eventually become osteocites.And, what begins with "osteo"is about bone tissue, and what begins with "chondro" is about cartilage tissue.
@@joshuaallen6196 -- Yes, you recreate bone all the time... the bone tissue inside of your bones is being replaced on a regular basis... bones can also become stronger (more dense) and weaker (less dense) depending on stresses created when you exercise. Another nifty thing is that parts of bones can grow based on stresses applied... the attachment sight for a muscle will change, grow, and thicken if you use that muscle more (I'm thinking of weight lifting but this counts for other types of exercise too).
@@renhartung Thank you for the reply. I understand strain and stress or normal growth periods for children can cause bone growth, but can humans recreate new bone using the same principles as platelets do? Can humans "artificially" grow bone and if so does that process involve the same type of platelets?
Question : I want to analysis trabecular bone in femur metaphysis region in hematoxylin and eosin staining images. we have software image pro in our Institute. So could you anyone please help me out in this it would be great help for me. any reference or video analysis. Thanks in advanced Krishna Bhan Singh
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Thank you sir, I'm an Anatomy and Physiology student in highschool and this helped me prepare for our lab that we had to do. When I got to class today and we started analyzing the Bone Tissue, I was overprepared :)) And I got extra credit for my test too :)))
Inside lacunae there are osteocytes. My understanding is that osteoblasts would be seen on the surface of the bone tissue. The osteoblasts form bone matrix, and if the become embedded in that matrix they turn into osteocytes. Osteoclasts I think are found on the bone surface and they break down bone matrix.
I almost had a heart attack she you said chondrocytes differentiate into osteocytes lol, but you corrected it after all ! :) thanks for the helpful video
Central canal and Haversian canal are just different terms for the same thing :)
Thank you doctor!🙏🏻❤️
Thanks for the detailed histology - much appreciated
Thanks for these videos. Saw all of the videos on the skeletal system and they really helped me a lot on the exam and on understanding the skeletal system in the human body. Thanks Dr. Hartung!
Good morning Dr. Hartung :*) Thank you very much for your informative video. I've learned a lot. I'm currently in a Histology Program at my University and I am already half-way through it. I will definitely be following up with your videos. Again, thank you. I've learned a lot and you've clarified this info for me :*)
Have a blessed day. Grace C
Thank you
this video is very helpful, thank you!
doc, all of your videos are beyond awesome..!! they are a boon for medical students... thanks a ton for uploading...!
awesome!! THANK YOU DOC!
Thank you so much for posting this! 💜
Ultra Valid 🔥🔥🔥
By the way, it is probably much more complicated than this. Under the microscope it looks like newer osteons grow into older osteons, taking over the space of the older osteon. When this is happening (if that is they way it happens) I don't know what cells are breaking down the matrix of the old osteon and building the lemellae of the new osteon.
Thank u dr.ran
Thank you Sir ♡
very well explained
thanks
hi, i want to ask u, inside the bone tissue (pink area), is it any osteoblast?or only osteoclast in the lacuna..tq
First thanks for the deep explanation it was really helpful for my histology exam :)
I had one question, about the haversian canals , are they different from Central canals or are they the same or (same thing different term) of the Central canals ?
Thanks again :)
Thankss
thanks
4 inform,i like
Great video Dr. Hartung. One question, are perforating canals the samen as Volkmanns canal?
Yes, Volkmann's canals and perforating canals are the same thing.
very helpful to me
Plz tell The difference between Osteons and Osteocytes is it same terms...?
Osteons are microscopic arrangements of hardened bone matrix and living cells. They are the basic structure of compact bone. The osteocytes are individual living cells that create, live in, and maintain the osteons. The "cyte" or "cyto" part of the word osteocyte tells us that these are cells.... Cytology means the study of cells. Here's another one... The word myocyte... "myo" means muscle and "cyte" means cell... So myocyte means muscle cell... "osteo" means bone so "osteocyte" means bone cell. Hope this helps.
did the bone tissue break during Sectioning?
If it did how did you overcome this problem?
I did not make these slides, sorry.
I encountered the same problem recently. Tried changing the blade, correcting the angle and there was no change until we decided to try cooling the samples in the freezer instead of on the cooling plate and the problem of breaking bone tissue was solved. This might probably be late, but I hope it'll help someone else in the future.
thank you very much but im just wondering if lacuna and osteoplasts is the same thing?
according to my book, osteocytes are in osteoplasts and chondrocytes are in lacunae...
I am not familiar with the term osteoplast... so I looked it up and it seems that the word osteoplast is just another spelling of osteoblast (bone matrix building cells). What may be going on here is that osteoplast (osteoblast) cells turn into osteocytes after they have surrounded themselves with bone matrix. The mature osteocyte lives in that cavity/compartment (lacuna) that was built by the ostoeplast (osteoblast).
I hope that helps.
Yes, lacuna and osteplasts are the same thing.Is the space in which the osteocites, the mature bone cells live in.There can be one osteocyte in a lacuna, or more, forming izogene groups.On the other hand, the osteoblasts are the young bone cells, which will eventually become osteocites.And, what begins with "osteo"is about bone tissue, and what begins with "chondro" is about cartilage tissue.
@@renhartung are humans capable of recreating human bone?The bone platelets are interesting. An amazing design!
@@joshuaallen6196 -- Yes, you recreate bone all the time... the bone tissue inside of your bones is being replaced on a regular basis... bones can also become stronger (more dense) and weaker (less dense) depending on stresses created when you exercise. Another nifty thing is that parts of bones can grow based on stresses applied... the attachment sight for a muscle will change, grow, and thicken if you use that muscle more (I'm thinking of weight lifting but this counts for other types of exercise too).
@@renhartung Thank you for the reply. I understand strain and stress or normal growth periods for children can cause bone growth, but can humans recreate new bone using the same principles as platelets do? Can humans "artificially" grow bone and if so does that process involve the same type of platelets?
Question : I want to analysis trabecular bone in femur metaphysis region in hematoxylin and eosin staining images. we have software image pro in our Institute. So could you anyone please help me out in this it would be great help for me. any reference or video analysis. Thanks in advanced Krishna Bhan Singh
Sorry, the slides I have are for trabecular bone are from mouse vertebrae.