LAB 5: Brainstem (cont.), Diencephalon (Thalamus, Hypothalamus), and Basal Ganglia Flashcards
what is the function of the thalamus
major relay station
what is the function of the pineal body
receive information about the state of the light - dark cycle from the environments
what is the function of the superior colliculus
visual , auditory and somatosensory information are integrated to initiate motor commands
what is the function of the inferior colliculus
sound localization
what is the function of the facial colliculus
houses the abducens nucleus and facial motor fibers
what is the function of the lateral geniculate nucleus
normal visual processing
what is the function of the medial geniculate nucleus
acts as the relay nucleus for the auditory system between the inferior colliculus and auditory cortex
what is the function of the cerebral peduncle
the main highway for signals that need to be transported from the cortex to other part of CNS
what is the function of the reticular formation
sleep and consciousness
what is the function of the medial lemniscus
transport the sensory spinothalamic information to conscious proprioception , vibration , fine touch and 2 point discrimination
what is the function of the lateral lemniscus
carries information about sound from the cochlear nucleus to various BS nuclei and ultimately the contralateral inferior colliculus of the midbrain
what is the function of the hypothalamus
regulates function of body , balance and thermoregulation
what is the function of the amygdala
negative emotions , fear , stress and anxiety
what is the function of the fornix
tract of white matter that connects the hippocampus
what is the function of the infundibular stalk
connects the posterior pituitary to the. hypothalamus , releases hormones to the bloodstream
what is the function of the cingulate gyrus
emotions and pain
what is the function of the septum pellucidum
separates lateral ventricles
what is the function of the superior cerebellar peduncle
conveys selective afferents to the cerebellum and carries efferents from the deep nuclei
what is the function of the middle cerebellar peduncle
convey information from the cerebrum and the pons to the cerebellum
what is the function of the inferior cerebellar peduncle
coordination of movements and proprioception
what are the 4 afferent tracts and 1 efferent tract that go in and out of the inferior cerebellar peduncle
afferent: posterior spinocerebellar , vestibuocerebellar , olivecerebellar and reticulocerebllar
efferent: cerebellovestibular tract
what is the function of the fascicles cuneatus
part of the DCML, carries sensory information from the upper extremity
what is the function of the fasciculus gracilis
part of the DCML, carries senosry information form the LE
what are the parts of the limbic system
the amygdala , hippocampus , thalamus , hypothalamus , basal ganglia , and cingulate gyrus
describe the path of the goal directed behavior
lateral prefrontal lobe > head of caudate > GPi> thalamus
describe the path of the social pathway
ventral prefrontal cortex > head of caudate > substantia nigra> thalamus
describe the path of the emotion loop
medial prefrontal cortex> ventral striatum ( putamen and caudate ) > thalamus
describe the path of the oculomotor loop
frontal and supplementary eye fields of cortex> body of caudate > substantia nigra > thalamus
describe the path of the motor loop
motor and premotor cortex > putamen > globes pallidus > substantia nigra > thalamus
