|Hypothalamus and pituitary gland, and their blood supply.
Releasing and inhibiting hormones synthesized by
hypothalamic neurosecretory cells are transported within axons and released at the axon terminals. The hormones
diffuse into capillaries of the primary plexus of the hypophyseal portal system and are carried by the hypophyseal
portal veins to the secondary plexus of the hypophyseal portal system for distribution to target cells in the anterior