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Anatomy Unit III FINAL > Forebrain/Limbic system > Flashcards

Forebrain/Limbic system Flashcards

1
Q

sensory relay nuclei

A

VPL and VPM

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2
Q

motor relay nuclei

A

VA and VL

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3
Q

Limbic relay nuclei

A

anterior nucleus (AN) and lateral dorsal (LD)

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4
Q

anterior nucleus and dorsomedial nucleus (DM) use ____ of internal capsule to get to the ____

A

anterior limb; cingulate gyrus (anterior nucleus) and prefrontal cortex (DM)

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5
Q

what uses the posterior limb of the IC?

A

VA/VL to motor areas
motor areas to brainstem and spinal cord
VPL/VPM to somatosensory cortex

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6
Q

medial geniculate nucleus uses the ____ part of the IC to get to the ____

A

sublenticular; auditory cortex

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7
Q

Pulvinar/LP nucleus uses the ____ part of the IC to get to the _____

A

retrolenticular; POT association cortex

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8
Q

lateral geniculate nucleus uses the ____ part of the IC to get to the _____

A

sublenticular and retrolenticular ; visual cortex (superior and inferior visual fields)

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9
Q

3 main types of connections of the hypothalamus:

A
  1. interconnected with the limbic system
  2. output to pituitary
  3. interconnects visceral/somatic nuclei
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10
Q

superior border of the hypothalamus

A

hypothalamic sulcus

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11
Q

anterior border of the hypothalamus

A

lamina terminalis

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12
Q

posterior border of the hypothalamus

A

midbrain tegmentum

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13
Q

medial and lateral borders of the hypothalamus

A

medial: 3rd ventricle
lateral: internal capsule

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14
Q

inferior border of the hypothalamus

A

optic chiasm, tuber cinereum (contains median eminence), mammillary bodies

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15
Q

parvocellular neuron axons end in _____

A

median eminence

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16
Q

magnocellular neuron axons end in _____

A

posterior lobe of the pituitary (neurohypophysis)

17
Q

parvocellular neurons give rise to ____ tract to _____

A

tuberoinfundibular; infundibular capillary bed

18
Q

parvocellular neurons carry:

A

releasing or inhibiting hormones ; all peptides except prolactin IH

19
Q

two hormones released by separate neurons in paraventricular and supraoptic nuclei

A

antidiuretic hormone/vasopressin

oxytocin

20
Q

stimulation of anterior hypothalamus produces ____ effects, and stimulation of posterior hypothalamus produces ____ effects

A

parasympathetic; sympathetic

21
Q

axons from anterior/posterior hypothalamus project down brainstem and spinal cord in _____

A

dorsal longitudinal fasciculus

22
Q

interplay of ____ and ____ nuclei creates appestat or appetite set point which can be altered by serotonin

A

lateral; ventromedial

23
Q

effects of stimulating/lesioning lateral nucleus

A

stimulate: feeding
lesion: refuse food

24
Q

effects of stimulating/lesioning ventromedial nucleus

A

stimulate: refuse food
lesion: feeding

Anatomy Unit III FINAL (5 decks)

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