brain Flashcards
ventricles function
makes cerebrospinal fluid which transports nutrients and clears waste
the fluid provides support for the brain and protects it against trauma
cerebral aqueduct function
narrow canal that allows celebrospinal fluid to travel from the third ventrical to the fourth to the spinal cord
third ventricle location
in diencephalon
fourth ventricle location
posterior to pons, and above medulla (superior)
has lateral apertures as sid ewalls
frontal lobe functions
conscious thought, decision making “executive functions”
precentral gyrus or primary motor cortex functions and location
located in the posterior frontal lobe and responsible for voluntary muscle movements
postcentral gyrus function and location
located in the anterior of parietal lobe
responsible for sensation (touch)
occipital lobe function
vision
temporal lobe
hearing, memory, acquisition
pre-motor cortex location and function
lies anterior to primary motor cortex
prepares and executes movements of the limbs
central canal function
continues after fourth ventricle
continues down the spinal cord carrying cerebrospinal fluid
insular lobe or insula function
located in the middle deep inside lateral cerebral sulcus
plays a role in smell and taste and memory
Somatosensory association cortex function
responsible for input processing and generation of movement
multimodal association cortex function
receives input from multiple mdoalities and formulates a composite experience.
Associated with imagination, judgement, decision making, and making long term plans.
central sulcus location
separates frontal and parietal lobes
parieto-occipital sulcus location
separates the parietal lobe and occipital lobe
lateral sulcus location
separates frontal/parietal and temporal lobe
corpus callosum
allows communication between the two sides of the brain
association fibres
connects different cortical areas in the same hemisphere: 2 types long range and U-fibres
projection fibres
connect the cortex and lower parts of the brain
thalamus
located in the diencephalon
relay station between cerebrum and the rest of the nervous system, mediates sensation and plays role in learning and memory
pineal gland
located inside diencephalon
secretes melatonin
posterior of brain
FORNIX
links the limbic system
hippocampus
C-shaped
mostly gray matter
long-term memory
amygdala
anterior surface of hippocampus
memory and emotion
hypothalamus
located in the diencephalon
contributes to homeostasis
connects info from nervous system to the hormone releases of the endocrine system
mammillary body
anterior end of the hypothalamus
memory of smell
cingulate gyrus
arch-shaped, close to corpus callosum
expressing emotions through gestures
Para hippocampal gyrus
processing of memory and smell
Superior colliculi
control visual reflexes
inferior colliculi
control hearing-related reflexes
pons
carrying signals between spinal cord and rest of the brain
and pontine nuclei for breathing rhythms
