Neuroscience - Block 2 - Part 3

davidwurbel7's version from 2016-03-11 16:25


Question Answer
Controls the autonomic nervous system (ANS) and the endocrine system. Control of body homeostasis. An important link between consciousness, behavior, and the physiological and also, the generation of a behavior in response to this; feeding or drinkingHypothalamus
Inferior portion of the Hypothalamus is called this, a swelling which becomes the median eminence, which then connects hypothalamus to the pituitary glandTuber Cinereum
This structure is the remnant of the anterior pole of the neural tube. Separates, in part, the diencephalon from telencephalonLamina Terminalis
Regulates gonadotropic hormones.Preoptic Nucleus
Control of circadian rhythms, receives input from retinaSuprachiasmatic Nucleus
Dissipation of heat, also involved in parasympathetic. Lesion results in hyperthermia.Anterior Nucleus
Conservation of heat, also involved in sympathetic. Lesion results in inability to thermoregulate (Poikilothermia)Posterior Nucleus
Stimulation induces eating, destruction = starvation. The hunger center.Lateral Nucleus
Stimulation results in obesity and savage behavior. A lesion of this nucleus is not likely to occur naturallyDorsomedial of the Medial Nucleus
Satiety center. Destruction results in obesity, irritable mood, may also exhibit savage behavior (Hypothalamic rage)Ventromedial of the Medial Nucleus
Production of PIF. Also known as Periventricular nucleusArcuate Nucleus
Secrete ADH, oxcytocin, CRH. Regulates water balance (conservation). Destruction results in diabetes insipidusParaventricular and Supraoptic nuclei
Regulates water balance, anti-diuretic, also vasoconstrictorVasopressin
Smooth muscle contraction in the uterus. Let down (release) of milk in mammary glandOxcytocin
Receive major input from hippocampus via fornix. Major output to Anterior nucleus of thalamus. Hemorrhagic lesions here are found in Wernicke/Korsakoff syndrome. Involved in memory; Wernicke/Korsakoff patients have anterograde memory deficits. Susceptible to hypoxia-induced damaged associated with untreated obstructive sleep apneaMamillary Bodies
Tract from mammillary bodies to anterior nucleus of thalamusMammillothalamic Tract
Tract from mammillary bodies to reticular formation and tegmentumMammillotegmental Tract
Tract from hippocampal formation to mamillary bodies. Biggest projection to hypothalamusFornix
Connects hypothalamus with prefrontal cortex and midbrain. This is a reward system in the brainMedial Forebrain Bundle
Amygdala to hypothalamus. Also separtes the hypothalamus from the caudateStria Terminalis
Afferents to cranial nerves involved in the ANS. More specifically, craniosacral/parasympathetic, and thoracolumbar/sympathetic systemsHypothalamospinal Tract
Damage this pathway above T1 leads to Horner’s syndromeHypothalamospinal Tract
Neurons secreting to the posterior pituitaryMagnocelluar Secreting Neurons (MSN)
Neurons secreting to the anterior pituitaryParvocellular Secreting Neurons (PSN)
Mammillary bodies to anterior nucleus of thalamus (from here they go to cingulate gyrus, but that’s for another lecture)Mammillothalamic tract
Mammillary bodies to reticular formation and tegmentumMammillotegmental tract
Hippocampal formation to mamillary bodies. Biggest projection to hypothalamusFornix

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