A withdrawal port (10) for withdrawing a liquid, in particular blood, from a tubing comprises a first tube connection (12), a second tube connection (13), and a fluid connection (15) between the first and second tube connections (12, 13). The withdrawal port (10) comprises a receiving section (17) suitable for reversibly releasably receiving a syringe cone (42) of a syringe (41). The withdrawal port (10) is configured such that an insertion of the syringe cone (42) into the receiving section (17) interrupts the fluid connection (15) between the first tube connection (12) and the second tube connection (13) and causes fluid communication of the syringe cone (42) with the first tube connection (12).
