T/S through spinal cord in situ.
T/S through base of heart ( note aorta to the right of the image).
Developing rib: cartilage-stage.
Developing skin: positivity is mostly confined to developing hair follicle epithelium.
Developing oesophagus and stomach show nuclear positivity.
Also, to the left, are positive chondroblasts/cytes ( developing ribs)
Lateral ventricle ( adult) showing svz and striatum.
Cortex. I think that the positive nuclei are microglia or astrocytes ( note several positive nuclei in the pia) as there is a moderate cytoplasmic process positivity ( ?specific? ).