Template:Johnson1913table01
From Embryology
| Table 1 Showing the development of the plicae semularis | ||||
|---|---|---|---|---|
| Embryo (mm) | Ascending Colon | Transverse Colon | Descending Colon | Iliac Colon |
| 65 | 2 large longitudinal folds | 3 large longitudinal folds | None | |
| 65 | 2 large and 1 small longit. fold | 2-3 very low | None | None small longit. folds fold |
| 70 | 1-2 large folds somewhat oblique folds | 1 low broad fold | ||
| 88 | 3 distinct longit folds | 2-3 longit. folds | Very low, but folds broad circ. folds, 0.09 to 0.13 mm. high | |
| 99 | 1-2 longit. folds | |||
| 110 | Slight indication of folds | Slight indication of folds | ||
| 120 | None | None | None | None |
| 140 | Oblique folds, 0.09 mm high, 0.90 mm broad, 0.07 - 0.14 mm apart | |||
| 190 | None (intestine distended) | Oblique folds, 0.18-0.45 mm high, 0.27-0.36 mm broad, 1.0 - 1.6 mm apart | ||
| 240 | Oblique fold s, 0.09-0.27 mm. high, 0.36-0.90 In m. b r 0 a. d, 1 .2 — 1 .6 In In. apart. | |||
| 320 | None (intestine distended) | |||
| 7 months fetus | Oblique folds foetus 0.36-0.54 mm. high, 0.36 mm broad, 0.7-1.3 mm apart. | Oblique folds similar to those in ascending colon. | ||
| Birth | Oblique folds, 0.09 mm. high, 0.36 - 0.45 mm broad, 1.3-1.4 mm apart | Oblique folds 1.3 - 3.0 mm high, 0.36-0.54 mm. broad. mm (seen in cross sections only) | Slight indication of Oblique folds | |
| Reference: Johnson FP. The development of the mucous membrane of the large intestine and vermiform process in the human embryo. (1913) Amer. J Anat., 14: 187-233. | ||||
