This video, we're going to talk a little bit more about acute inflammation. Recall from our previous lesson video that acute inflammation is characterized by a short-term immune response where symptoms develop very quickly and last only a short period of time, such as just a few days. Acute inflammation is marked by an abundance of neutrophils. These neutrophils gather in the infected and damaged area. The main goal of acute inflammation is to quickly recruit immune cells to the site of damage or infection. Neutrophils are the first to be recruited to the area. These cells are the first to arrive at the site of infection.
If we take a look at our image below, on the left-hand side here, we're focusing on our map of the lesson showing the innate effector actions, and we've already discussed phagocytosis. So here in this video, we're focusing on acute inflammation. Here we have a little cartoon that's focusing on acute inflammation. Notice that we have a person here who is outdoors, and a bug, such as a mosquito, lands on this person. Then, notice that this person is saying, "Ow, a bug bit me," as the mosquito bites them. Notice that acute inflammation results from the bug bite. Just a few days later, notice that the inflammation has subsided. Again, acute inflammation only lasts a short period of time, just a few days.
This concludes our brief lesson on acute inflammation, how it is characterized by an abundance of neutrophils, and how we'll be able to apply these concepts as we move forward. Then, we'll talk a little about chronic inflammation. I'll see you all in our next video.