B737-800
Flight Crew Air Transport Pilot (ATP)
Other / Unknown
Conflict Ground Conflict; Critical; Flight Deck / Cabin / Aircraft Event Illness / Injury
Flight Crew Returned To Gate; Flight Crew Took Evasive Action; General Flight Cancelled / Delayed
Human Factors
While taxiing; I made a sudden stop of our aircraft because I perceived imminent contact with a regional carrier aircraft crossing our path from left to right.  Flight attendants #1 and #2 requested to be removed due to contact with service carts.  Returned to gate and flight attendants deplaned under supervision of medical personnel.  If flight attendants were required to be in their seats at all times when aircraft was taxiing; they would not have been hurt.
During taxi out Captain abruptly stopped aircraft when he noticed a commuter aircraft to the left.  Flight attendants #1 and #2 advised Captain they were injured.  We returned to gate where flight attendants were removed by medical personnel.  Brake aircraft less aggressively if possible while avoiding an aircraft.
B737 flight crew experiences a ground conflict with another aircraft crossing left to right and the Captain stops abruptly injuring two flight attendants.