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BLOck 2

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medicoblasto's version from 2016-06-26 15:18

Hypothalamus

Connections of the hypothalamus

Question Answer
Mammillothalamic tractMammillary bodies to anterior nucleus of thalamus.
Mammillotegmental tractMammillary bodies to reticular formation and tegmentum.
FornixHippocampal formation to mamillary bodies. Biggest projection to hypothalamus
Medial forebrain bundleConnects hypothalamus with prefrontal cortex and midbrain.
HypothalamospinalAfferents to cranial nerves involved in the ANS. More specifically, craniosacral/parasympathetic, and thoracolumbar/sympathetic systems. Damage this pathway above T1 = Horner’s syndrome.
Stria terminalisAmygdala to hypothalamus.
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Thalamus

Cranial Nerves

Classification

Question Answer
General Somatic Efferents (GSE)oculomotor (CN III), trochlear (CN IV), abducens (CN VI), and hypoglossal (CN XII)
Special Visceral Efferent (SVE)trigeminal (CN V), facial (CN VII), glossopharyngeal (CN IX), vagus (CN X), and the spinal accessory (CN XI).
General Visceral Efferents (GVE)oculomotor (CN III), facial (CN VII), glossopharyngeal (CN IX), and vagus (CN X).
General Somatic Afferents (GSA)trigeminal (CN V), vagus (CN X), glossopharyngeal (CN IX), and facial (CN VII)
Special Sensory Afferents (SSA)optic (CN II) and auditory-vestibular (CN VIII) nerves.
Special Visceral Afferents (SVA)Olfaction is mediated by the olfactory (CN I) nerve, and taste is mediated by the facial (CN VII), glossopharyngeal (CN IX), and vagus (CN X) nerves.
General Visceral Afferents (GVA)glossopharyngeal (CN IX) and vagus (CN X) nerves.
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Diagrams

Cranial nerves