Fig. 7
From: MR microscopy of the human fetal upper extremity – a proof-of-principle study
Development of the muscles and ligamentous structures of the wrist at different ages. a Axial T2w image of 9-week GA specimen at the level of the base of the proximal phalanges demonstrates the course of the flexor tendons (black arrow). b Secondarily reconstructed axial T2w image of a 10-week GA specimen demonstrates the transverse carpal ligament (white arrow) of the carpal canal at the hamate (black arrow) and the trapezoid (dotted arrow). c Coronal Tw2 image of a 9-week GA specimen. The styloid process of the ulna has not retreated from the triquetrum (long white arrow). The articular disc (short white arrow) already demonstrates its definite morphology