Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: [ Ссылка ]

Review of B cells, CD4+ T cells and CD8+ T cells. Created by Sal Khan.


Watch the next lesson: [ Ссылка ]

Missed the previous lesson? [ Ссылка ]

NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at [ Ссылка ]).

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s NCLEX-RN channel: [ Ссылка ]
Subscribe to Khan Academy: [ Ссылка ]

свернуть