Answer
The axons of the hypothalamic-hypophyseal tract and the blood vessels of the hypophyseal portal system both deliver hormones to the pituitary gland. In this way they serve similar functions.
Work Step by Step
Axons of the hypothalamo-hypophyseal tract, and the veins of the hypothalamic -hypophyseal portal system that carry hormones to the pituitary glands perform similar functions--in this connection. Nevertheless, structurally, axons (or fiber tracts) are structurally very different from veins.
