The hypophyseal portal system is a system of blood vessels in the microcirculation at the base of the brain, connecting the hypothalamus with the anterior pituitary. Its main function is to quickly transport and exchange hormones between the hypothalamus arcuate nucleus and …

2025年1月20日 · The hypophyseal portal system is a vascular system made of tiny blood vessels that connect the adenohypophysis to the hypothalamus. The capillaries and venules of the portal system are fenestrated which allows the smooth exchange of molecules between the blood vessels and the cells of the anterior pituitary.

2022年12月16日 · Known as the hypophyseal portal system, this structure allows the hypothalamus to communicate with the anterior pituitary via the release of neurotransmitters into the bloodstream. Posterior Pituitary

The Hypophyseal Portal System refers to a specialized blood vessel system that rapidly transports neuropeptides from the hypothalamus to the anterior pituitary gland for communication with target cells.

This network, called the hypophyseal portal system, allows hypothalamic hormones to be transported to the anterior pituitary without becoming diluted in systemic circulation. This portal system begins with a primary capillary plexus originating from the superior hypophyseal artery, a branches of the internal carotid artery.

1 Anatomy of the Hypophyseal Portal System. 1.1 Primary Plexus; 1.2 Portal Vessels; 1.3 Secondary Plexus; 2 Physiological Mechanisms. 2.1 Hormone Transport; 2.2 Feedback Loops; 3 Hormonal Regulation and Examples. 3.1 Gonadotropin-Releasing Hormone (GnRH) 3.2 Corticotropin-Releasing Hormone (CRH) 3.3 Dopamine; 4 Theoretical Models and ...

The hypophyseal portal system is a network of blood vessels that connects the hypothalamus and the anterior pituitary gland, allowing for the direct transport of hormones. This system plays a crucial role in neuroendocrine integration by facilitating communication between the nervous system and the endocrine system, ensuring that hormonal ...

2024年7月4日 · The hypophyseal portal system is a network of blood arteries that connects the anterior pituitary and hypothalamus at the base of the brain. Its principal job is to swiftly transfer and exchange hormones between the anterior pituitary …

The hypophyseal portal system is a network of blood vessels that connects the hypothalamus to the anterior pituitary gland, allowing for direct transport of regulatory hormones. This system plays a crucial role in ensuring efficient hormone communication between these two parts of the endocrine system.

2024年6月7日 · The hypophyseal portal system is a system of blood vessels in the microcirculation at the base of the brain, connecting the hypothalamus with the anterior pituitary. Its main function is to quickly transport and exchange hormones between the hypothalamus arcuate nucleus and anterior pituitary gland.