thalamus, hypothalamus, and pituitary gland Flashcards
neuro exam 3
what are the mom components of the diencephalon?
thalamus
hypothalamus
epithalamus
subthalamus
what is the key function of the thalamus
key relay center for all sensory modality with the exception of olfaction.
what is the thalamus important for?
motor control and modulation
the thalamus is involved in what?
limbic circuits
what does the thalamus regulate?
sleep and wakefulness
involved in the reticular activating system that maintains alertness.
Thalamocortical and corticothalamic projections that generate specific oscillations during sleeping and wakefulness that synchronize neural activity.
what are the 4 sensory nucli in the thalamus?
- ventral posterior lateral nucleus
- ventral posterior medial nucleus
- lateral geniculate nucleus
- medial geniculate nucleus
what sensory does the ventral posterior lateral nucleus hold?
somatosensation from the trunk and limbs
what sensory does the ventral posterior medial nucleus hold?
somatosensaation from the face and head and taste sensation.
what sensory does the lateral geniculate nucleus hold?
vision
what sensory does the medial geniculate nucleus hold?
hearing
where do the motor nuclei in the thalamus receive information from?
basal ganglia and cerebellar circuits
where does the motor nuclei of the thalamus relay their information to?
cortex
(primary motor cortex, premotor, supplemental motor cortices)
what are the 2 motor nuclei of the thalamus?
ventral anterior nucleus (VA)
ventral lateral nucleus (VL)
what are the cognitive and limbic nuclei of the thalamus?
anterior nucleus
medial dorsal nucleus
pulvinar nucleus
what does the anterior nucleus of the thalamus do?
involved in papez circuit (memory and emotion)
