Hypothalamus and Vascular organ of lamina terminalis

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Difference between Hypothalamus and Vascular organ of lamina terminalis

Hypothalamus vs. Vascular organ of lamina terminalis

The hypothalamus(from Greek ὑπό, "under" and θάλαμος, thalamus) is a portion of the brain that contains a number of small nuclei with a variety of functions. The vascular organ of lamina terminalis (VOLT), organum vasculosum of the lamina terminalis (OVLT), or supraoptic crest is one of the four sensory circumventricular organs of the brain, the others being the subfornical organ, the median eminence, and the area postrema in the brainstem.

Anatomical terms of location

Standard anatomical terms of location deal unambiguously with the anatomy of animals, including humans.

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Angiotensin

Angiotensin is a peptide hormone that causes vasoconstriction and an increase in blood pressure.

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Blood–brain barrier

The blood–brain barrier (BBB) is a highly selective semipermeable membrane barrier that separates the circulating blood from the brain and extracellular fluid in the central nervous system (CNS).

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Brainstem

The brainstem (or brain stem) is the posterior part of the brain, adjoining and structurally continuous with the spinal cord.

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Circumventricular organs

Circumventricular organs (CVOs) are structures in the brain characterized by their extensive vasculature and highly permeable capillaries unlike those in the rest of the brain where there exists a blood brain barrier (BBB).

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Median eminence

The median eminence, part of the inferior boundary of the hypothalamus in the brain, is attached to the infundibulum.

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Paraventricular nucleus of hypothalamus

The paraventricular nucleus (PVN, PVA, or PVH) is a nucleus in the hypothalamus.

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Subfornical organ

The subfornical organ (SFO), situated on the ventral surface of the fornix (the reasoning behind the organ's name), at the interventricular foramina (foramina of Monro), is one of the circumventricular organs of the brain, meaning that it is highly vascularized and does not have a blood-brain barrier, unlike the vast majority of regions in the brain.

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Supraoptic nucleus

The supraoptic nucleus (SON) is a nucleus of magnocellular neurosecretory cells in the hypothalamus of the mammalian brain.

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Thirst

Thirst is the craving for fluids, resulting in the basic instinct of animals to drink.

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Vasopressin

Vasopressin, also named antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin, is a hormone synthesized as a peptide prohormone in neurons in the hypothalamus, and is converted to AVP.

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