Central Nervous System Flashcards
the outer layer of the brain
cortex
the folds of brain in the cortex
gyrus (gyri)
spaces between gyri and folia
sulcus (sulci)
spaces separating large regions
fissure
brain region separated by fissures or sulci
lobe
CNS region with myelinated axons
white matter
CNS region with neuronal cell bodies
gray matter
bundle of axons within the CNS
fiber tract
bundle of axons outside the CNS
nerve
network of nerves outside the CNS
plexus
neuronal cell body clusters within the CNS
nucleus
neuronal cell body clusters outside of the CNS
ganglion
What is 1?
precentral gyrus
What is 2?
postcentral gyrus
What is 3?
central sulcus
What is 4?
lateral sulcus
What is 5?
parieto-occipital sulcus
What is 6?
longitudinal fissure
What is 7?
transverse fissure
What is 8?
frontal lobe
What is 9?
parietal lobe
What is 10?
temporal lobe
What is 11?
occipital lobe
What is 1?
corpus callosum
What is 2?
anterior commissure
What is 3?
fornix
What is 4?
lateral ventricle
What is 5?
choroid plexus
What is 6?
septum pellucidum
What is 7?
olfactory bulb
What is 8?
olfactory tract
What is 1?
caudate nucleus
What is 2?
putamen
What is 3?
globus pallidus
What is 1?
caudate nucleus
What is 4?
substantia nigra
What is 5?
subthalamic nuclei
What is 6?
hippocampus
What is 7?
amygdala
What is 8?
cingulate gyrus
What is 9?
mammillary bodies
What is 1?
caudate nucleus
What is 1?
caudate nucleus
What is 2?
putamen
What is 7?
amygdala
What is 4?
substantia nigra
What is 5?
subthalamic nuclei
What is 1?
thalamus
What is 2?
optic nerve
What is 3?
optic chiasm
What is 4?
optic tract
What is 5?
interthalamic adhesion
What is 6?
cerebral aqueduct
What is 7?
third ventricle
What is 8?
choroid plexus
What is 9?
infundibulum
What is 10?
pituitary gland
What is 11?
pineal gland
What is 1?
cerebral peduncle
What is 2?
crus cerebri
What is 3?
tegmentum
What is 4?
cerebral aqueduct
What is 5?
superior colliculus
What is 6?
inferior colliculus
What is 7?
fourth ventricle
What is 8?
middle cerebellar peduncles
What is 9?
pyramids
What is 10?
olive
what structures make up the cerebral cortex?
precentral gyrus, postcentral gyrus, central sulcus, lateral sulcus, parieto-occipital sulcus, insular cortex
function of precentral gyrus
site of primary motor cortex, planning and execution of movement
function of postcentral gyrus
site of the primary somatosensory cortex, sense of touch
function of parieto-occipital sulcus
sulcus separating the occipital lobes from the parietal lobes
function of insular cortex
diverse functions including consciousness, taste, visceral sensation, empathy and self-awareness
function of frontal lobe
plan, initiate, enact movement including eye movement and speech, reasoning, projecting consequences
function of parietal lobes
sensory stimuli processing including comprehension of speech and spatial awareness
function of temporal lobes
encoding long term memory, language recognition and comprehension, facial recognition
function of occipital lobes
primary visual cortex
what is the corpus callosum?
commissural fibers between cerebral hemispheres
what is the anterior commissure?
commissural fibers between temporal lobes
what is the fornix?
commissural efferent fibers from the hippocampus
what is the internal capsule?
projection fibers including corticospinal fibers from cortex to motor neurons
what is the external capsule?
association fibers within the cerebral cortex
what is the choroid plexus?
capillaries and modified ependymal cells within ventricles that produce CSF
what are the basal ganglia?
interconnected subcortical nuclei that deal with action selection and decision making
putamen & globus pallidus
lentiform nucleus
lentiform nucleus & caudate nucleus
striatum
striatum, substantia nigra, and subthalamic nuclei
basal ganglia
function of striatum
reward, motivation, inhibitory control, impulsivity
function of caudate nucleus
integration of spatial awareness and motor behavior, spatial working memory
function of putamen
planning, learning and executing motor skills, setting movement amplitudes and planning sequences
function of globus pallidus
subconscious movement, balancing excitatory output from cerebellum to smooth movement
function of substantia nigra
motor control, motor planning, reward-seeking, addition, anatomically part of midbrain
function of subthalamic nuclei
action selection and impulsivity (poorly understood), anatomically part of diencephalon
function of limbic system structures
deals with emotion, motivation, behavior, memory, olfaction, exact composition controversial
function of hippocampus
consolidating short term memory to long term memory
function of amygdala
emotional responses, memory processing, decision making
function of cingulate gyrus
emotion processing, linking outcomes to behavior
function of mamillary bodies
episodic (event & experiential) memory, anatomically part of the hypothalamus
function of hypothalamic nuclei
regulation of endocrine system, i.e. metabolism, reproduction, stress, etc.
structures of thalamus
optic nerves, optic chiasm, optic tract, interthalamic adhesion, interventricular foramen, third ventricle, choroid plexus
function of optic nerves
visual afferents from retina
function of optic chiasm
sorting of left/right visual information
function of optic tract
projecting visual information to visual centers, e.g. superior colliculi
function of pituitary gland
hormonal control of growth, blood pressure, energy, reproductive function, stress, salt balance
function of pineal gland
circadian rhythm and melatonin production
function of posterior commissure
mediates bilateral pupillary reflex, poorly mapped connections
pineal gland & posterior commissure
epithalamus
structures of the diencephalon
thalamus, subthalamic nuclei, hypothalamus, epithalamus
structures of brain stem
midbrain, pons, medulla oblangata
function of superior colliculus
spatially directed movements, e.g. eye and head movements
function of inferior colliculus
sound processing, startle response, spatial localization of sound
function of pons
respiration, sleep, hearing, equilibrium, taste, chewing, swallowing, involuntary movement, facial expressions
function of middle cerebellar peduncles
fibers connecting the cerebellum to the pons
function of medulla oblongata
autonomic regulation of breathing, heart rate and blood pressure
function of pyramids
decussation (crossing over) over pyramidal neurons from motor cortex
function of olive
sound localization, assist cerebellum with motor learning
What is 1?
frontal lobe
What is 2?
precentral gyrus
What is 3?
central sulcus
What is 4?
postcentral gyrus
What is 5?
longitudinal fissure
What is 6?
precentral gyrus
What is 7?
postcentral gyrus
What is 8?
parietal lobe
What is 9?
occipital lobe
What is 1?
precentral gyrus
What is 2?
central sulcus
What is 3?
postcentral gyrus
What is 4?
lateral sulcus
What is 5?
precentral gyrus
What is 1?
corpora quadrigemina
What is 2?
parieto-occipital sulcus
What is 3?
medulla oblongata
What is 4?
fornix
What is 5?
interthalamic adhesion
What is 6?
corpus callosum
What is 7?
interventricular foramen (56)
What is 8?
anterior commissure
What is 9?
hypothalamus
What is 10?
optic chiasm
What is 11?
septum pellucidum
What is 12?
thalamus
What is 13?
fornix
What is 14? (55)
choroid plexus (55)
What is 15? (14)
pineal gland (14)
What is 16?
patieto-occipital sulcus
What is 17? (the canal)
cerebral aqueduct
What is 18? (white pattern)
arbor vitae
What is 19?
pons
What is 1?
arbor vitae
What is 2?
vermis