The Immune System

Paul Andersen explains how your body protects itself from invading viruses and bacteria. He starts by describing the nonspecific immune responses of skin and inflammation. He then explains how we use antibodies to disrupt the function of antigens and mark them for destruction. He then explains both the homoral and cell-mediated immune response highlighting the importance of B and T lymphocytes. He finally describes the process of long term immunity.

Intro Music Atribution
Artist: CosmicD
Creative Commons Atribution License

[lou]

I used to use your videos to study for AP biology, and now 8 years later I am using them to refresh my memory for the lecturing I do at university. Thank you so much for your videos!

[Denizzmbm]

To be honest I prefer your videos over the popular Crash Course videos, because I think you are very clear! Thanks so much for all the videos I've already watched for my biology finals!!!

[nathanwillis]

Both T and B Lymphocytes are made in the bone marrow. The T Lymphocytes however, mature in the Thymus gland. The B Lymphocytes mature in the bone marrow.

[shawzhang]

nice, this is equal to a two hours bioclass in my school

[GabeThinks]

Bozeman science > Khan academy. Your videos are so great and as a student, it is apparent that you understand the material by the simplistic way that you explain it. Thank you!

[abtintari]

Jesus christ I've been reading my HIGH SCHOOL biology book for several hours, and I don't understand HOW professors with biology-degrees can use over 50 pages to explain something which you clarify a 100 times better in 14 minutes. Thank you so much for the help!

[coolraceralex]

At 7:58, T cells are not made in the thymus gland.  They are matured in the thymus gland; however, they are made in the bone marrow.

[ThreeFreeTrees]

When is Mr. Anderson dropping some merch?!?!??

[emmawallisch]

Macrophages are me tbh I too eat anything that is not my body

[berberverhalle]

Dear mister Anderson, I'm A student in Holland And I'm 16 years old and I just wanted to say that trough all my school test for biology you were really really really helpful. Most of the time I didn't get it when It was explained by my teacher and then i watched your videos and in 10 minutes I already understand it (even though my English is not that good) I just wanted to thank you for all the good grades I got by watching your videos! You're the reason why I want to study biology! I cannot thank you enough!

[mutantatoms]

I am such a auditory/visual learner and these helped me tremendously. Thanks a million.

[suryasuresh]

My AP bio exam is tomorrow, you truly r a life saver.

[jcarr]

Thank u so much for making these videos. Your teachings and explanations are very helpful. I'm very appreciative

[hannahwinder]

I didn't understand the immune system in the way that my teacher was teaching it but after watching your video it all came together, thank you so much!

[jacobp]

2:38 everybody give Mr. Andersen a high five!!!

[sademoniq]

Mr. Anderson, THANK YOU! Too bad that I didn't have you as my instructor in the first place but YouTube is the next best thing! My understanding of immunity was ZERO before I saw this video! Thank you a million times, I am your subscriber! 😄

[mxddi]

You sir deserve an award for helping many college students understand and pass their biology class.

[ChannelNO]

You are the best teacher in the world..i really do hope you never stop making helpful videos like these..thank you

[katecrimson]

T cells aren't made in the thymus. They mature there, but they're made from hematopoietic stem cells in the bone marrow.

[Onyxandfriends.]

Oh my godness! You have made such a complicated system become so simple! I love, love, love the way you explain the lymphatic system and the brain! You are the best! Thank you so much Mr. Paul Andersen!