About Stage 22 Embryo Sections - The Carnegie stage 22 human embryo is 27mm (CRL) in size and approximately equal to day 54 - 56 of development.
Stage 22 Serial unlabeled images
A1 A2 A3 A4 A5 A6 A7
B1 B2 B3 B4 B5 B6 B7
C1 C2 C3 C4 C5 C6 C7
D1 D2 D3 D4 D5 D6 D7
E1 E2 E3 E4 E5 E6 E7
F1 F2 F3 F4 F5 F6 F7
G1 G2 G3 G4 G5 G6 G7
Stage 22 Serial labeled images
A1L A2L A3L A4L A5L A6L A7L
B1L B2L B3L B4L B5L B6L B7L
C1L C2L C3L C4L C5L C6L C7L
D1L D2L D3L D4L D5L D6L D7L
E1L E2L E3L E4L E5L E6L E7L
F1L F2L F3L F4L F5L F6L F7L
G1L G2L G3L G4L G5L G6L G7L