How do blood transfusions work? – Bill Schutt

How do blood transfusions work? – Bill Schutt

In 1881, doctor William Halsted rushed to help his sister Minnie, who was hemorrhaging after childbirth. He quickly inserted a needle into his arm, withdrew his own blood, and transferred it to her. After a few uncertain minutes, she began to recover. Halsted didn’t know how lucky they’d gotten. His transfusion only worked because he

Read More

How Cells Become Specialized

How Cells Become Specialized

Captions are on! Click the CC button at bottom right if you wish to turn them off. Follow us on Twitter (@AmoebaSisters) and Facebook! We’ve mentioned a lot about specialized cells. Specialized plant cells. Specialized animal cells. So many kinds of specialized cells…it’s going to get a bit crowded here. But have you ever wondered…how

Read More

The Immune System Explained I – Bacteria Infection

The Immune System Explained I – Bacteria Infection

Every second of your life, you are under attack. Billions of bacteria, viruses, and fungi are trying to make you their home. So our bodies have developed a super complex little army with guards, soldiers, intelligence, weapons factories, and communicators to protect you from…well…dying For this video, let’s assume the immune system has 12 different

Read More