Module
8
Icon module 8
Embryonic phase

Synoptic table of the Carnegie stages 14 - 16

Stage 14
Approx. 33th day
5 - 7 mm
media/module8/carnegie/i1_kyotostad14.jpg

  1. Telencephalon
  2. Mesencephalon
  3. Myelencephalon
  4. Ocular primordium
  5. Fourth ventricle
  6. Cervical sinus
  7. Mesonephric cord
  8. Bud of the upper extremity
  9. Bud of the lower extremity

Fig. synopimg14

Characteristic signs

  • Opthalmic vesicle.

  • Genesis of the endolymphatic canal.

  • Augmented cephalo-cervical flexure.

  • Cerebellar primordium.

  • Visible ocular primordium.

  • Sixth pharyngeal arch

© Professor Kohei Shiota, Kyoto University

Stage 15
Approx. 36th day
7 - 9 mm
media/module8/carnegie/i1_kyotostad15.jpg

  1. Umbilical cord
  2. Cardiac prominence
  3. Nasal placode
  4. Ocular primordium
  5. Bud of the upper extremity
  6. Bud of the lower extremity

Fig. synopimg15

Characteristic signs

  • Lens vesicle covered with the ectoderm.

  • Auditory primordium.

  • Genesis of the hand plate.

© Professor Kohei Shiota, Kyoto University

Stage 16
Approx. 39th day
8 - 11 mm
media/module8/carnegie/i1_kyotostad16.jpg

  1. Umbilical cord
  2. Nasal pit
  3. Nasolacrimal groove                 
  4. Ocular primordium
  5. Flexura pontina
  6. Flexura cervicalis
  7. Auditory primordium
  8. Cardiac prominence
  9. Hand plate
  10. Foot plate
Telencephalon
Diencephalon
Mesencephalon
Metencephalon
Myelencephalon
Spinal cord

Fig. synopimg16

Characteristic signs

  • Deep, ventrally lying nasal pit.

  • Pigmentation of the eye .

  • Genesis of the foot plate.

  • Physiologic umbilical hernia.

  • Nasolacrimal groove.

© Professor Kohei Shiota, Kyoto University