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Pars intermedia
The pars intermedia of the adenohypophysis lies adjacent to the pars nervosa and to the colloid-filled, cystic remnants of Rathke’s pouch. Cells of this subdivision also migrate into the pars nervosa. The pars intermedia, which is rudimentary in humans, is composed exclusively of basophils. 200x

Cystic remnants of Rathke's pouch
The pars intermedia of the adenohypophysis lies adjacent to the pars nervosa and to the colloid-filled, cystic remnants of Rathke’s pouch. Cells of this subdivision also migrate into the pars nervosa. The pars intermedia, which is rudimentary in humans, is composed exclusively of basophils. 200x

Pars intermedia
The pars intermedia of the adenohypophysis lies adjacent to the pars nervosa and to the colloid-filled, cystic remnants of Rathke’s pouch. Cells of this subdivision also migrate into the pars nervosa. The pars intermedia, which is rudimentary in humans, is composed exclusively of basophils. 200x

Pars nervosa
The pars intermedia of the adenohypophysis lies adjacent to the pars nervosa and to the colloid-filled, cystic remnants of Rathke’s pouch. Cells of this subdivision also migrate into the pars nervosa. The pars intermedia, which is rudimentary in humans, is composed exclusively of basophils. 200x

- Axon bundles
The pars intermedia of the adenohypophysis lies adjacent to the pars nervosa and to the colloid-filled, cystic remnants of Rathke’s pouch. Cells of this subdivision also migrate into the pars nervosa. The pars intermedia, which is rudimentary in humans, is composed exclusively of basophils. 200x

- Herring bodies
The pars intermedia of the adenohypophysis lies adjacent to the pars nervosa and to the colloid-filled, cystic remnants of Rathke’s pouch. Cells of this subdivision also migrate into the pars nervosa. The pars intermedia, which is rudimentary in humans, is composed exclusively of basophils. 200x

Blood vessels
The pars intermedia of the adenohypophysis lies adjacent to the pars nervosa and to the colloid-filled, cystic remnants of Rathke’s pouch. Cells of this subdivision also migrate into the pars nervosa. The pars intermedia, which is rudimentary in humans, is composed exclusively of basophils. 200x