brain Flashcards
highly vascularized layer close to brain is
pia mater
the web like layer of the brain meninges is
arachnoid
sub-arachnoid space is filled with
cerebro-spinal fluid (csf)
the cerebral hemispheres are connected by
tract of nerve fibres called the corpus callosum
the cerebral cortex is made of
grey matter (cytons and dendrites)
the cerebral medulla is made of
white matter (axons)
the cerebral cortex includes
sensory, association, motor areas
olfactory and auditory areas are in the
temporal
gustatory and somatosensory areas in
parietal
visual areas in
occipital
association areas are involved with
memory, communication, learning
_____ converts thoughts into speech
broca’s speech motor area
motor areas are located in
frontal lobe
______ is the center for learning, communication, memory
wernicke’s speech association area
_____ increase surface area of the brain 3 times
gyri and sulci
cerebral medulla includes
thalamus, hypothalamus, hippocampus, amygdala
relay center for sensory and motor signalling
thalamus
the gateway to cortex is
thalamus
appetite center is
hypothalamus
limbic system includes
amygdala, hippocampus, hypothalamus
hippocampus helps in
converting short term memory to long term
midbrain includes
cerebral aqueduct, corpora quadrigemina
corpora quadrigemina consists of 4 lobes on
dorsal part of midbrain
CQ acts as
audiovisual reflex center
hindbrain has the grey and white matter arranged as
arbor vitae
cerebellum helps in
balancing and equilibrium
alcohol affects the
cerebellum
pons consist of
myelinated nerve tracts connecting different parts of brain
medulla oblongata controls
involuntary actions
spine is connected to
medulla oblongata
central portion of spinal cord is
grey
spinal cord extends from
brainstem to 2nd lumbar
longest nerve is
vagus nerve
dentist nerve is
trigeminal
spinal nerve distribution formula is
C8 T12 L5 S5 Co1
dorsal root of spinal nerves are _____ whereas ventral root is ____
sensory dorsal and motor ventral
