Oh, wow, oh, oh, oh, wow, oh, oh, oh, man.

Oh, my.

And so, you're listening to The Sides of Everything podcast, episode 73,

Introduction to the Immune System, Part 2.

So this episode continues on directly from episode 73, introduction to the immune system part one, funnily enough,

and I'd strongly recommend listening to that first, because much of this episode won't make very much sense without that background.

But in this episode, we're basically just going to continue straight from where we left off last time,

and I'm going to talk in particular about the adaptive immune system and antibodies, B cells, T cells,

a bit about a glutination, and then I'll try and sort of summarize and put it all together and give an overall framework of how the immune system works.

Just before we start, a brief note,

I wanted to apologise for the very long delay

between the previous episode and this one.

I unfortunately undertaken rather too many obligations of late,

and my time has been quite limited.

I'm hoping, fingers crossed,

that in the relatively near future, I'll be able to

restructure my schedule so that I have a little bit more time for the podcast. The podcast is important,

and I certainly want to keep it going, so I don't have any immediate plans to stop making episodes.

It's more just a question of time. I thank my loyal listeners for sticking in there and

continuing to subscribe to the podcast, even if there aren't any episodes for a little while.

Okay, so that being said, let's jump back into the immune system. And to remind you of where we were,

we had talked about the different types of leukocytes,

...