you're a joy to listen to. no "ah's" or "ums". thank you so much.

@kevinwang6490

7 жыл бұрын

1:37 umm

@eleya5825

4 жыл бұрын

5:20

@sarag.2090

3 жыл бұрын

@@kevinwang6490 the point is, compared to most teachers, this is almost immaculate.

@alexandermarcus9076

3 жыл бұрын

Few years ago I was having Cancer as an illness 😭 not untill I meant a spell caster named DR FREDRICK who helped me to be free from Cancer. If you want to be free from cancer Text DR FREDRICK on whatsapp as soon as possible (+1,617,465,5935) and testify later..

@bigmanaaron1639

3 жыл бұрын

Didn't ask

Watching this has made me understand what cancer actually is. Thankyou for this video

Great presentation! Love how you add the animation to your discussion! Very easy to understand! Keep up the great work!

Videos always rock Mr. Anderson!

Youre so awesome! I love how well you explain things. I will definitely pass my classes thanks to you! :)

Thank you for that most lucid explanaition

Thanks for the video, you do this for all the right reasons so i want you to know it is appretiated

great video. finally understood this matter. flawless flow in speaking

I've just subscribed and I already love your explanation

Very informative for a regular person like me! Thank you for doing this video!

You do much too good a job with these videos! Length is just right, the content is very focused, the excellent examples.

Brilliant! The video was easy to understand. Thank you kindly for the video. I found it very helpful.

Aamzing videos, so easy to understand! Thanks so much! keep posting 😊❤️

Wish you went more into anchorage and density dependent inhibition because that's how it's characterized in AP Biology. But great video they're all so helpful!

Nice introduction, thanks!

Very well done and helpful.

I like how he says very simple and then give a 6 minute explanation on what cancer is

Thank you so much….! This is the video which I need now…

I love your teaching!!!

Extremely informative video

Thanks for describing cancer so easily for what my professor took 2 hours online and still failed. Thanks for such a great and smooth informational video.

@bigmanaaron1639

3 жыл бұрын

STFU

@brainbox8361

3 жыл бұрын

@@bigmanaaron1639 thanks. Im gaining attention. 😂

Perfect detailed explanation

Wow! That was a great explaination

You are such a good bio teacher.

Very well explained!!!!!!

i am still in primary five i am watching those all day ,thanks for this :D

Very helpful. Thank you.

It was very helpful thank you.

My A.P. Bio teacher loves you! Thanks for the review

@hooralkindi3716

3 жыл бұрын

me too, cause actually he do explain well

Great video!

Explained it nicely

Very helpful info

Why can't the macrophages and killercells in the immune system kill this tumor? Please like so Bozeman can see this.

@kerrymasterson5375

9 жыл бұрын

***** Thats right, one more point is the sugar markers. The sugar markers within the extracellular matrix vary in cancers calls. The immune system in some people is capable of seeing these markers. There are ways to expose cancer cells.

@brcarter1111

5 жыл бұрын

The answer is very complex. Think of it like a pest species such as mosquitos or bacteria. If you spray for mosquitos, you will kill millions of them each time you do. In that large, heterogeneous population, there will be mosquitos that have genetic mutations that render your spray useless. Over time, the susceptible population will be wiped out and replaced by those who are immune. If you try to reuse the same spray you had used previously, it will do nothing. As you mentioned, many of our immune cells will readily identify and kill cancer cells. This represents perhaps the greatest selective challenge cancer cells face. Tumors, like the mosquitos, are a large, heterogenous population. As time goes on, cancer cells, which often have corrupted DNA repair mechanisms and an incredible rate of proliferation, begin to favor the survival of cancer cells that have mutations that prevent recognition and killing by immune cells. This process is called immunoediting. One of the primary mechanisms cancer cells are recognized is by presentation of antigens on MHC I complexes found on the surface of cells. Although mutations play a significant role, what really seems to be privileging cancer cells doesn't seem to be mutations at all; instead it is the reactivation of genes that they shouldn't be using. What governs this process is unknown. Our immune system is a powerful tool to keep us same from harm, but often it makes mistakes. Collateral damage caused by the immune system can kill us. There are many tissues, particularly in the central nervous system and the human embryo, that are vital to our species and must therefore be protected from the immune system. Many of these cells present molecules on their surface that inactivate or even kill immune cells that try to target them. Cancer is evolution incarnate; not only are tumors and cancer cells constantly acquiring mutations upon which natural selection acts, but seemingly gain a key to the protein-encoding genes perfected over the last 650 million years of vertebrate evolution.

@KRAkil-cs4eh

5 жыл бұрын

Because those cells belongs to our body our immune system does not attack our own cells even though it becomes a cancer cell because of the genetic constitution

@brcarter1111

5 жыл бұрын

@@KRAkil-cs4eh not necessarily true. We have a series of markers on cells that kind of provide a "window" into the cell that show what kinds of proteins it's making. If there are viral or mutated proteins being translated, these are viewed as non self

@healthierlife1610

5 жыл бұрын

They kill some of the cancer cells but they cann't kill all of them.

you are the best tkank you so much ❤️

Great inf thank you

wery wery helpfull...thwnks

Yes this was very helpful, still 6 years later :)

Very helpful

Yes it was helpful. I was recently informed of a large tumor that must be removed, and I will learn if it is cancerous in a few days. Therefore, this short informative video was a great refresher tool to remind me of the cause of tumors. Thank you!

@Mustafa-rv8cl

4 жыл бұрын

Hey so was it? Hope you’re well.

@ebonyleslie7122

2 жыл бұрын

Also hoping that you're alright!

@JustAThought155

2 жыл бұрын

@@Mustafa-rv8cl, Thank you. The tumor was successfully removed and determined as non-cancerous. Sorry for the delayed response. I just received a notification regarding this dated post. Weird!

@JustAThought155

2 жыл бұрын

@@ebonyleslie7122, Thank you. The tumor was successfully removed and determined non-cancerous.

@JustAThought155

2 жыл бұрын

The “walnut sized” tumor was removed from my nostril about ten weeks after it was discovered. Thanks be to God, the tumor did not spread into my brain, as suggested before its removal, nor did it have a lasting effect.

Thank you.🥺

Yeah, that was very helpful.

great! thank you

Well done, this is a good introduction video to tumor forming cancers (About 85% of all cancers) We desperately need better ways to more accurately Grade and Stage cancers (Truly knowing early-on which mutations are really dangerous ones). Without good low-cost methods to measure the metastatic potential of a cancer the quality of expensive cancer studies has always been compromised. Perhaps one of Mr Anderson students will be part of the solution one day. You have a really excellent teacher here. Other obstacles have to be overcome, Inefficient business models V's Passionate scientists being free to work together Gains for Individual companies V’s Patient Impact Publicly Funded Science for Sale (Behind pay walls V’s “True” Open Access

king of all subject

that was helpful thx

Good job'...

wow, thanks

Thanks for the vid I never seen cancer and never know what cancer is! Thank you! 😁😁😁 and wow your smart smarter then me

@kaiziel

4 жыл бұрын

I hope it stays that way

Will lots of exercise/workout greately decrease your chance of getting cancer?

Im amazed

im studying medicine and i watching these kind of videos

Omg yassssss I'm so confident for my bio test yess

In description box you've made typo.

Thx

Ty I get it now

you are the bestttt

Are there any foods or drinks that help fight cancer?

Very helpful indeed!!

I know this is the standard explanation for cancer (ie, cell starts going crazy not listening to body and replicating). But from what I was hearing, a cell starts to out-compete other nearby cells at which point the nearby cells will start to ramp up to compete. Until we have a cancerous growth of many different types of cells. If it were just a cell multiplying then wouldnt it be a homogeneous growth?

@BoogieDownProduction

10 жыл бұрын

Bozeman Science please tell me if this is incorrect in your opinion? I can link you to the studies if you are interested

A fine explanation of cancer, but it focuses more on therapy than on causes and prevention. In that sense, a corporate-friendly neoclassical explanation..

So it's like diminishing returns?

Actually a study shown if your active through you 60ss and above less likely chance of cancer the more you exersice the more healther all the way around less chance of cancer

Really Osm 🌸♥️

You said one treatment of cancer is using ionizing radiation, but does ionizing radiation not cause DNA strands to break and thereby damage chromosomes... cause mutations that may trigger a tumour to develop in the first place ?. Seems contradictory, please explain.

@kerrymasterson5375

9 жыл бұрын

IR will cause damage to DNA in both normal and cancer cells. Cancer cells replicate faster and if repair enzymes are unable to keep the DNA repaired and faithful cancer cells die more often due to replication errors.

How does uncontrollable cell growth lead to death of a tissue or organ? Is it because all the energy of that part of the body is being spent on the production of cancer cells & therefore not on the healthy cells?

@alexiguess6018

4 жыл бұрын

Probably a bit of both. Also (this is just my guess, I hv no idea for sure), the cancer cells, if they divide enough, can restrict the function of vital organs. For example, if a cancerous mass were to occupy, say, the left lung, then, the bigger it grows, the more it restricts the function of the left lung, until, eventually, it takes up the entire lung and caused it to be completely useless, while restricting the amount of oxygen at the same time

Does the immune recognise cancer cells or when is the problem too big for the body to deal with. Thanks!

@khadijahb796

10 жыл бұрын

I think cancerous cells bypass the "normal" cell checkpoints, because they're mutants. And that's why it's hard for the immune system to detect a foreign antigen, because it skips specific parts of the cycle and they just replicate uncontrollably. (I think :))

@khadijahb796

10 жыл бұрын

Forgot to add, that's why cell apoptosis isn't effective :) because cancerous cells are mutated

@Animuldok

10 жыл бұрын

Yes, the immune system removes neoplastic cells on a daily basis. It's actually amazing once you understand all the hurdles a neoplastic cell has to get over in order to survive in situ, metastasize, and then survive in the target tissue.

@Tschoo

10 жыл бұрын

cool thanks for the answer!

Cancer sucks :(

@kiwileija8673

3 жыл бұрын

natural selction

@bigmanaaron1639

3 жыл бұрын

STFU

why not trying alkaline therapy due the the specific pH constitution of the cells hence neutralisation

The best way to treat the cancer is the Mishin's coil device

But, isn't mutations which causes all cancers? You said that the causes are different, but cancers are the same. I'm a little confused regarding that

@elitetech7728

9 жыл бұрын

Ajaay Persaud Like Team Rocket said, environmental factors & health choices may lead to mutations. And these mutations will cause cancer.

My baby couzin is going to die because of cacer I am so sad

An interesting documentary was Forks Over Knives. Individuals discovered that a diet rich with fresh vegetables, and eating no meat, permit the body to heal from many illness. It's also interesting to see so many individuals Living to Prevent Cancer.

Your channel :3

Man... This is so familiar. Last year my grandfather had prostate cancer so he had to have prostate removal surgery, followed by about a years worth of radiation treatments. Do to the cancer being in his prostate a lot of my friends were giggling about it! Cancer is not funny, and cancer cells is absolute cellular psychopaths...

You didn't explain how uncontrolled cell growth is bad for the body

@ExploreCHINA616

10 жыл бұрын

uncontrolled cell growth leads to formation of a tumour and then cancer which is bad for the body

anyone else think of the matrix when hearing "Mr. Anderson"?

The cells in the tumour are the same, aren't they? Because they are the progeny of one genetic mutational cell.

Benign tumor stays in a particular location

Though I thought the video was quite informative and overall well presented, your use of the word "tumor" is incorrect. It is more appropriate to call the collection of cancer cells a mass or nodule. "Tumor" refers to *any* abnormal swelling (bug bite, swollen stubbed toe, etc.) and is not remotely synonymous with cancer in a medical/pathological context due to its extremely broad/nonspecific meaning. The more correct way of defining cancer is "malignant neoplasia." It would serve those interested in understanding the differences of the following terms: hyperplasia, neoplasia, malignant, and benign.

Can you please go straight to the main points so I don’t get tired takings notes😂

@zandermaples2425

3 жыл бұрын

ong

👌

Mr Anderson, you have a cool name

I killed bithic magma

Looks like I'm free.

My explanation is slighthly different. Tumorigenesis is a complex, temporo-spatial, multistep phenomenon that begins locally in macromolecules at the level of quantum interactions during spontaneous thermodynamic fluctuations [Waliszewski P et al. On the holistic approach in cellular and cancer biology: nonlinearity, complexity, and quasi-determinism of the dynamic cellular network. J Surg Oncol 1998; 68(2): 70-78]. Macromolecules undergo deterministic chaotic oscillations caused by physical forces whose average value in time is zero. Some of those fluctuations lead to the irreparable DNA damage in protein encoding genes as well as to the altered function of DNA polymerases. Those alterations result in both qualitative and quantitative changes in non-linear, non-bijective, and quasi-deterministic dynamic cellular network composed of genes, their regulatory elements, RNAs and functional proteins. In particular, mutations appear in some critical genes during DNA synthesis and replication (compare [Tomasetti C, Lu L, Vogelstein B. Stem cell division, somatic mutation, cancer etiology, and cancer prevention. Science 2017; 355: 1330-1334.]). A novel cellular phenotype emerges. Since that process occurs random and parallel in different stem cells, malignant phenotype may appear in different tissue localizations. Usually, cells with the mutated DNA self-organize in a tumor, that is, a tissue structure composed not only of malignant cells, but also fibroblasts, muscle cells, and blood vessels. Although that lesion develops locally, phenotypically malignant cells spread over the body and colonize the distant organs as metastases. The metabolic influences of the local lesion change eventually metabolism at different levels of hierarchical organization of multicellular organism, from subcellular organelles up to the organism level. Those metabolic alterations lead to death of patients. Thus, a variety of interactions within that hierarchy determine the course of tumorigenesis as a disease.

@bigmanaaron1639

3 жыл бұрын

Didn't ask

Just get the Tumour out then what’s stopping U from doing that

Cancer is a Malignant Alien!!! 👾🧬

Wait just a second... correlation shows causation? I think not! C'mon Bozeman. I love your videos but that's a scientific no-no right there. (2:35)

walter

How to cure cancer: change your jeans I’m sorry I’ll go now EDIT: spelling

is that russell howard?

LETS THINK OUTSIDE THE BOX AND POSSIBLY CONSIDER THE MENACE OF FUNGUS !!!

@elitetech7728

9 жыл бұрын

Greg Balteff what

What is cancer? Anime.

I have kids in my basement

L mans

@chrismiller9839

3 ай бұрын

Omg it’s me