Circle of Willis
Neuroendocrinoimmunology
Sagittal section of human head
Here you can see the pituitary gland (hypophysis), a roundish organ that lies immediately beneath the hypothalamus, resting in a depression of the base of the skull called the sella turcica (“Turkish saddle”)
Sectioned pituitary gland and the hypophyseal portal system within it.
Brain anatomy. Computer artwork of a human brain, seen from the front. The left hemisphere of the cerebrum is at upper right and the right hemisphere is at upper left. The cerebellum is seen at lower left and right, and the brainstem and spinal cord are at lower centre. The pituitary gland (small bi-lobed structure) and olfactory bulbs (smell sensory organs, long extensions) are seen at centre.
