The invention relates to a receiver container (2) for receiving body fluid, in particular blood, comprising an open end (4), an end (5) closed by a base wall (6) and a container wall (7) which extends therebetween and defines a longitudinal axis (8). The container wall (7) has an internal surface (9) and an external surface (11) spaced apart therefrom by a wall thickness (10). The receiver container (2) is made from a plastic material. At least one reinforcement rib (27) is arranged on at least one first subsection (28) of the internal surface (9) of the container wall (7) and protrudes towards the longitudinal axis (8), said first subsection (28) extending from the region of the closed end (5) and in the direction towards the open end (4). The invention also relates to a receiver unit (1) comprising such a receiver container (2) which is closed by a closure device (3).
