Brain Parts Flashcards
Telencephalon also known as:
Cerebrum
Telencephalon attributes and parts
Largest part of brain
Highly folded
Divided into cortex and white matter tracts
Why is the telencephalon folded?
Allows much more surface area to house neurons
Sulcus
Grooves of folded areas
Gurus
Ridges of folded areas
Cortex
Outer region of telencephalon made of gray matter
Holds neuron cell bodies
Lobe
Regions of cortex
White matter tract
Bundles of mostly myelinated axons deep to the cortex
Connect various regions of central nervous system together
White matter tract directions
3 types:
1)association tract
2) projection tracts
3) commisural tracts
Association tracts
Axons connect anterior and posterior regions within one hemisphere
Projection tracts
Connect vertical regions
Connects thalamus to tracts of spinal cords
Commisural tracts definition and example
Connects laterally between hemisphere
Corpus callosum is an example
Lobe names
Frontal lobe
Temporal lobe
Parietal lobe
Occipital lobe
Insula
Frontal lobe
Centers for judgement and personality
Motor impulses start here
Broca’s area
Area in left frontal lobe
Translates thoughts into speech
Temporal lobe
Inferior to lateral sulcus
Receives auditory sensations
Contains auditory recognition and memory
Wernicke’s area
Region in left temporal lobe
Let’s person translate speech to thought
Parietal lobe
Receive all body sensations except for smell
Posterior to central sulcus
Occipital lobe
Receives visual sensations
Contains visual memory and recognition
Posterior most lobe
Insula
Hidden lobe, deep to temporal lobe
Related to short term memory and emotional memory
Nuclei
Scattered throughout white matter tracts
Clumps of neuron cell bodies
Nuclei function
Function in subconscious muscle movements
