Detail of the helmet's feed port.
Some contingency plans call for the astronauts to be in their pressurized suit
for an extended period of time (e.g., if the command module were to lose
pressurization). Water and food can be passed through the
feed port without losing suit pressurization.
At the other end of the digestive system, there is a urine collection and
transfer assembly inside the suit which leads to a port on the suit's upper
right thigh (a flap covers the port in dsc62955.jpg; the port is depicted in my A7L CMP suit diagram, labeled as
"UCT and biomedical injection flap patch) so that the urine can be drained from
Also see the Waste
Management System chapter in Biomedical Results of