Cerebrum Flashcards
motor areas
voluntary motor functions, areas that innervate skeletal muscle
sensory areas
conscious awareness of sensation
association areas
integrating diverse information for purposeful action
cerebellum
unconscious awareness of sensation
frontal lobe
contains voluntary motor functions and areas of language, planning/mood/personality, social judgement and smell
what are the areas of the frontal lobe?
superior frontal gyrus
middle frontal gyrus
inferior frontal gyrus
what are the areas of the inferior frontal gyrus?
opercular gyrus
triangular gyrus
orbital gyrus
precentral gyrus
just superiorly to the central sulcus. consists of the primary motor cortex
somatotopy in the primary motor cortex
consists of the motor homunculus. area for each region is proportional to the amount of motor control over that region
primary motor cortex
controls skilled voluntary movements of skeletal muscles. motor innervation is contralateral
premotor cortex
controls learnt motor skills, coordinates the movement and is involved in planning of the movment.
damage to the premotor cortex
impairs learnt functions
supplementary and cingulate motor area
incharge of speech. they receive inputs from other cortical areas and the thalamus
damage to the supplementary and cingulate areas
loss of desired skilled movement and speech
prefrontal cortex
has an extensive connection with the other lobes. it is involved with intellect, complex learning abilities, recall and personality.
damage to the prefrontal cortex
mental and personality disorders
parietal lobe
contains areas for sensory reception and integration of sensory information
postcentral gyrus
posterior to the central sulcus. it is the primary somatosensory cortex.
superior parietal lobule
separated by the intraparietal sulcus. it is the somatosensory association cortex
somatosensory association cortex
integrates different sensory inputs relays via the primary somatosensory cortex to produce a comprehensive understanding of the position of ht limbs, location of touch or pain, and characteristics of an object
damage to the somatosensory association cortex
the brain is unable to recognise objects without looking directly at them
areas of the parietal lobe
postcentral gyrus superior parietal lobule inferior parietal lobule supramarginal gyrus angular gyrus
occipital lobe
the visual center of the brain
areas of the occipital lobe
primary visual cortex
visual association cortex