Two organ systems, the kidneys and lungs, maintain acid-base homeostasis, which is the maintenance of pH around a relatively stable value. The lungs contribute to acid-base homeostasis by regulating carbon dioxide (CO2) concentration.
EL SEGUNDO, Calif. -- When Los Angeles Lakers reserve swingman Xavier Henry ruptured his left Achilles tendon on Monday, Kobe Bryant had flashbacks.It took me right back to that place again, Bryant said after practice Tuesday.
St. Xavier is the oldest high school in the Cincinnati area and one of the oldest in the nation. It grew out of the Athenaeum, which opened in 1831 in downtown Cincinnati.