They're called dendritic cells.

And then you dendritic cells.

Dendritic cells, or macrophages, capture the virus and display pieces of it.

So to our blueprint, we need to add tuned spines.

Let's slow it down and you can see the spines in action.

And these spines don't always drive you to make the best choices.

The reason why they're called dendritic cells is because they look like they have dendrites.

It's a dendritic drainage pattern that can be formed only by the flow of liquids.

These phagocytes right here, these are all I talk about dendritic cells and macrophages and neutrophils.

The books also have high packed LEDs on the spines. So it's all display.

But of course, we can deal with that because we can produce artificial spines.

They bite right through the needle sharp spines to reach the surprisingly juicy flesh

I must look rather strange to you, all covered in spines, without even a face.

The dendritic pattern you see mimics the growth of mushroom mycelia, which are the equivalent of plant roots.

And where they have a problem with this kind of mesh, because they don't have spines.

The crabs are missing spines, so they have a problem in this kind of rough terrain.

Now just because we have a distributed foot and spines doesn't mean you can climb vertical surfaces.

Dendritic cells can differentiate to secrete IL 12 (which supports TH1 cell development) or IL 4 (which supports TH2 responses).

There are short sensory barbels around the head, together with short, backward pointing spines on the gill covers.

We can make spines that catch on simulated debris and collapse on removal to easily pull them out.

The larvae typically have protective spines on the head, over the gills, and in the pelvic and pectoral fins.

We did that by putting these artificial spines on crabs, as you see here, and then we tested them.

I may just be a slow moving ball of spines, but don't let my calm adult exterior fool you.

And when you first see the word dendritic cell, you think, hey, does this somehow relate to dendrites of the nervous system?

I'll draw a couple of dendritic cells and these are also the ones that were really good at activating helper T cells.

These tuned structures allow the spines, friction pads and ultimately the adhesive hairs to grab onto very challenging, difficult surfaces.

At the same time, your dendritic cells, other phagocytes, they will eat up the viruses and then they'll present them on their surfaces.

Some of this organization is found among the heliozoa, but those lack central capsules and only produce simple scales and spines.

The next step is to make compliant toes, and try to add spines and claws and set it for dry adhesives.

I pulled a pinfish, they're called, with sharp dorsal spines, up too hard and fast, and I blinded myself in one eye.

It is large and heavy bodied with a dorsal crest of short spines running from the base of the neck to the end of the tail.

And one of the other things I'd been interested in and obsessed with over the years is spines and skeletons, having collected a couple of hundred.

It was proposed that GM CSF may cause dendritic cells to present antigen more efficiently, and enhance IL 2 production and TH cell activation, thus driving the increased immune response.

And if you remember from the videos on phagocytic action or phagocytes, you'll remember there was one type called dendritic cells and they tend to hang out near our skin.

So if you look carefully at this, what you see is that they have spines and until a few weeks ago, no one knew what they did.

RF So if you look carefully at this, what you see is that they have spines and until a few weeks ago, no one knew what they did.

Once infected, endothelial cells (cells lining the inside of blood vessels), liver cells, and several types of immune cells such as macrophages, monocytes, and dendritic cells are the main targets of infection.

And when we're talking about phagocytes or macrophages or dendritic cells that are particular cases of phagocytes, the major histocompatibility complexes that they present after they've digested this molecule this is an MHC class Il.

One day when I was only seven years old and fishing, I pulled a pinfish, they're called, with sharp dorsal spines, up too hard and fast, and I blinded myself in one eye.

They die of HlV, they die of hepatitis C, they die of infections of their heart valves, they die of infections of their brains, of their spines, of their hearts, of their bloodstream.

This family includes groupers and coral cod (not related to true cod), which are all characterised by having three spines on the gill cover and a large mouth lined with more than one row of sharp teeth.

Now if we look at animals, though, to be really maneuverable in all surfaces, the animals use hybrid mechanisms that include claws, and spines, and hairs, and pads, and glue, and capillary adhesion and a whole bunch of other things.

Now if we look at animals, though, to be really maneuverable in all surfaces, the animals use hybrid mechanisms that include claws, and spines, and hairs, and pads, and glue, and capillary adhesion and a whole bunch of other things.

And we learned there's different types of phagocytes could be a macrophage, could be a neutrophil, could be a dendritic cell and we have it like this and then we also saw in that video, it's not just done the macrophage doesn't just digest this thing.

They just look like they have dendrites on them and that's why they call them dendritic, but they're really phagocytes and they tend to be near external interfaces and they phagocytose particles and they're good at presenting them to helper T cells so that they can get activated and ring the alarm bell, so to speak.