Henry Gray (1825–1861). Anatomy of the Human Body. 1918.
FIG. 947
 |
| The head and neck of a human embryo thirty-two days old, seen from the ventral surface. The floor of the mouth and pharynx have been removed. (His.) |
Henry Gray (1825–1861). Anatomy of the Human Body. 1918.
|
| The head and neck of a human embryo thirty-two days old, seen from the ventral surface. The floor of the mouth and pharynx have been removed. (His.) |