Gross Anatomy of the Brain and Spinal Cord 1 Flashcards
what is normally the dominant hemisphere
left hemisphere
what is the left hemisphere responsible for
language, speech and writing
what are the left and right hemispheres connected by
corpus callosum
what is the non-dominant hemisphere in control of
orientation of the body in its environment, visual, interpretation of music, emotion and intuition
what is the purpose of the sulci
they are grooves that separate the gyri
what is the purpose of the gyri
ridges that increase surface area
what divides the brain into quarters
longitudinal cerebral fissure and the central sulcus
what divides left and right hemispheres
longitudinal fissure
what runs in the longitudinal fissure
falx cerebri
what are the ridges in the cerebellum called
folia
what cranial nerves are associated with medulla
CN IX, X, XII
what cranial nerves are associated with the pons
CN VI-VIII
what is part of the diencephalon
epithalamus, thalamus, hypothalamus
what surface is the parietal-occipital sulcus visible on
medial surface
what sulcus is the insula deep to
the lateral sulcus
what are the three major parts of the frontal lobe
prefrontal cortex
motor cortex
broca’s area
what is the function of the prefrontal cortex
problem solving
personality
what is the function of the motor cortex
planning, control and voluntary movement via
primary motor cortex
what is the function of Broca’s area
production of speech
usually found in left hemisphere
what is broca’s aphasia
when there has been damage to broca’s area and sounds can be made but words cannot be formed, also an inability with writing
what are the main parts of the parietal lobe
primary somatosensory cortex
posterior parietal cortex
what is in the primary somatosensory cortex
sensory humunculus and deals with tactile sensation
what is the function posterior parietal cortex
spatial perception
spatial attention
cognitive functions
what is the main part of the occipital lobe
primary visual cortex
where is the primary visual cortex located
around the calcarine sulcus
where does the primary visual cortex receive visual information from
the thalamus
what are the two main parts of the temporal lobe
auditory cortex
wernickle’s area
what is the function of the auditory cortex
hearing, speech, words, pitch and tone of music
what is the function of wernickles area
language comprehension
what happens in wernickles aphasia
the person can say words perfectly fine but the words they say are often wrong as the comprehension is impeded
where is the insula found
deep to the lateral sulcus
what is the anterior insula involved in
language and planning
what is the posterior insula involved in
integrating information
