Structure and Functions of CNS1 Flashcards
Where is the grey matter in the brain?
On the outside
What is cerebral cortex?
Outer layer of brain
Grey matter
Gyrus
Ridge
Sulci
Groove in cerebral cortex
Fissure
Larger sulci
What does central sulcus divide?
Motor (front) and sensory area (behind)
What does parietal fissure separate?
Frontal from temporal love
What does great longitudinal fissure separate?
2 cerebral hemispheres
What is the corpus callosum
Nerve fibres joining the two hemispheres
What does the lateral fissure separate?
Temporal lobe from frontal and parietal
Cingulate gyrus
the curved fold covering the corpus callosum
Calcarine sulcus
Separates occipital lobe into inferior and superior parts
What forms grey matter?
Nerve cell bodies
What forms white matter?
Axons
What is frontal lobe syndrome?
Difficulty initiating behaviour
Inability to stop a behavioural pattern
Difficulties in planning and problem solving
Incapable of creative thinking
Apraxia
Difficulty planning and performing motor activities
Agnosia
Inability to recognise objects, faces, smells or sound
Aphasia
Difficulty with production and comprehension of language or speech, read, write
Amnesia
Memory loss- forming new memory’s recognise families places, faces
Broca’s Aphasia
Motor or non-fluent aphasia
Patient know what want to say but cannot express it
Comprehension mildly affected
In frontal lobe
Wernicke’s Aphasisa
Speech fluent
Loss of language comprehension
Cant produce meaningful speech
Damage to left posterior superior temporal gyrus
Left Frontal lobe function
Speech
Left side Temporal lobe function
Verbal memory (words)
Understanding spoken language
Hearing
Left side Parietal lobe function
Writing and Calculation
Body orientation
Touch perception
Right side Parietal lobe
Spatial imaging
Dressing Drawing
Finding ones way around
Right temporal lobe
Visual memory
Falx cerebri
Separate 2 hemispheres from left to righ
Tentorium cerebelli
Separate cerebrum from cerebellum
Falx cerebelli
Separate 2 hemispheres of cerebellum
What does diencephalon constitute of?
Basal ganglia
Thalamus
Basal ganglia
Collection of nuclear masses that lie within cerebral hemispheres
Where are the respiratory, cardiac, vasomotor centres?
Brainstem
What are the cerebellar peduncles?
Superior, middle, inferior
Connect cerebellum to brainstem
Superior to inferior names of part of brainstem
Midbrain
Pons
Medulla
