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Hypothalamus
Creighton University School of Medicine
45
Medical
Professional
04/21/2013

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Term
Term
Definition
Definition
Term
4 Hypothalamic Regions
Definition
Preoptic, Anterior (supraoptic), Middle (tuberal), Posterior (mammillary)
Term
3 zones medial to lateral
Definition
Periventricular, Medial, Lateral
Term
Parts of preoptic region
Definition
medial preoptic nucleus, lateral preoptic nucleus
Term
Medial preoptic nucleus function
Definition
This functions in regulating male sexual behavior
Term
Parts of anterior region
Definition
Periventricular, suprachiasmatic nu., supraoptic nu., paraventricular nu., anterior nu., lateral hypothalamus
Term
Periventricular nucleus function
Definition
This functions in feeding behaviors
Term
Suprachiasmatic nucleus function
Definition
This functions in diurnal cycles
Term
Supraoptic and Paraventriculra nu. Function
Definition
These nuclei project to the posterior pituitary
Term
Paraventricular nu. Function
Definition
This nuclei also projects through the central sympathetic tract
Term
Anterior nucleus function
Definition
This functions in osmolality (thirst) and thermoregulation of the brain
Term
Lateral hypothalamus + MFB function
Definition
This functions in the limbic activation system, appetite, and activity
Term
Parts of middle (tuberal) region
Definition
Periventricular, arcuate, ventromedial, dorsomedial, and lateral hypothalamus
Term
Arcuate nucleus function
Definition
This nuclei projects to capillaries which send blood to the anterior pituitary
Term
Ventromedial nucleus function
Definition
This functions in regulating female sexual behavior, receptivity, and feeding
Term
Dorsomedial nucleus function
Definition
This functions in regulating ingestive behavior/feeding yourself
Term
Parts of posterior (mammillary) region
Definition
Periventricular, mammillary bodies, posterior nucleus, lateral hypothalamus
Term
Mamillary bodies function
Definition
This functions as Part of Papez circuit, for processing short term memory
Term
Posterior nucleus function
Definition
This functions in part with paraventricular as the source of the central sympathetic tract, also some thermoregulation
Term
Lateral hypothalamus+MFB lesion
Definition
A lesion here will present with lethargy, and anorexia
Term
ADH and Oxytocin productioin site
Definition
Cell bodies of paraventricular and supraoptic nucleus produce these hormones
Term
Post pituitary lesion
Definition
A lesion here will present with decreased ADH activity in kidney and diabetes insipidus
Term
Stria terminalis function
Definition
Regulates fear (central amygdala) and regulates sexual behavior (BL amygdala)
Term
Stria terminalis connections
Definition
- BL amygdala to pre-optic area andventromedial area = sexual behavior
- central Amygdala to brainstem = fear response
Term
Nuclei that form the central sympathetic tract
Definition
Paraventricular, posterior nuc, and lateral hypothalamus
Term
Connections of the medial forebrain bundle
Definition
basal telencephalon/amygdala/septum to the lateral hypothalamus to the brainstem
Term
Connection of the retina to the suprachiasmatic nucleus is important for what?
Definition
diurnal rhythms
Term
Mamillothalamic tract connects what two areas?
Definition
- Mamillary bodies and the anterior thalamus
- part of the papez circuit
- involved in processing short term memories
Term
The fornix projects to what?
Definition
The mamillary bodies
Term
Growth hormone-releasing hormone (GHRH) function?
Definition
Stimulates linear growth in epiphyseal cartilages
Term
Growth hormone-inhibiting hormone (GHIH or somatostatin function?
Definition
Reduces linear growth in epiphyseal cartilages
Term
Prolactin-releasing hormone (PRH) function?
Definition
Stimulates lactogenesis
Term
Prolactin-inhibiting hormone (PIH = dopamine) function?
Definition
Reduces lactogenesis
Term
Corticotropin-releasing hormone (CRH) function?
Definition
Stimulates adrenal gland to produce corticosteroids and sex hormones
Term
Thyrotropin releasing hormone (TRH) function?
Definition
Stimulates thyroid gland to produce thyroxine
Term
Luteinizing hormone-releasing hormone (LHRH) and follicle-stimulating releasing hormone (FRH) function?
Definition
Stimulates ovarian follicles and production of estrogen and progesterone
Term
Growth hormone-releasing hormone (GHRH) stimulates release of?
Definition
Growth hormone (GH)
Term
Growth hormone-inhibiting hormone (GHIH or somatostatin) inhibits release of?
Definition
Growth hormone (reduced production)
Term
Prolactin-releasing hormone (PRH) stimulates release of?
Definition
Prolactin (luteotropic hormone, LTH)
Term
Prolactin-inhibiting hormone (PIH = dopamine) inhibits release of?
Definition
Prolactin (luteotropic hormone, LTH)
Term
Corticotropin-releasing hormone (CRH) stimulates release of?
Definition
Adrenocorticotropic hormone (ACTH)
Term
Thyrotropin releasing hormone (TRH) stimulates release of?
Definition
Thyroid-stimulating hormone (TSH)
Term
Luteinizing hormone-releasing hormone (LHRH) and follicle-stimulating releasing hormone (FRH) stimulates release of?
Definition
Luteinizing hormone (LH) and Follicle-stimulating hormone (FSH)
Term
Dopamine has what effect on prolactin?
Definition
Inhibits the release of prolactin
Term
Serotonin has what effect on prolactin?
Definition
Stimulates the release of prolactin
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