human
In 2024, British researchers finally solved a puzzle that had confused blood specialists since 1972, after a pregnant patient's blood reacted oddly to nearly every donor sample available.
Scientists confirmed the discovery of a new human blood group system called MAL after tracing a mysterious antigen, first noticed in 1972, to its underlying gene. This antigen appears on the surface of red blood cells in more than 99.9 percent of people, so finding the small number of rare AnWj-negative individuals helps doctors avoid dangerous mismatches during blood transfusions.
A new jaw muscle or a new type of white blood cell would be unrelated discoveries in entirely different areas of anatomy and immunology, not connected to this decades-old transfusion mystery, which was specifically about a red blood cell surface marker.
It took over fifty years from the antigen's first observation in a confused blood sample to finally identifying its genetic cause, showing how some basic questions in medicine can remain unsolved for generations until the right combination of genetic tools and rare patient cases comes along.
human
How many bones does a typical adult human skeleton have?Are you taller in the morning or at night?About how often does the human stomach lining fully replace itself?What do modern taste researchers say about this classic "tongue map"?At rest, about how long does your blood take to make one full loop around your body?Who has more bones — a newborn baby or an adult?About how many times does an average person's heart beat in a single day?Which part of the human body has no blood supply of its own?How often does your stomach grow a fresh inner lining?Roughly what share of the adult human body is water?Why is it nearly impossible to tickle yourself?Which is often called the strongest muscle in the human body, pound for pound?Quration — Quration Play