Final Exam Telencephalon Flashcards
Left hemisphere is known for:
Grammar, vocabulary, Linear reasoning
Right hemisphere is known for :
Prosodic language (facial movement), Spatial manipulations
Outer convoluted grey cerebral cortex also called:
The pallium
Underlying mass of the white fibers collectively called:(under the pallium)
Centrum semiovale
Deep w/in the white matter are collections of neuron cell bodies called the:
Basal ganglia
What are the 4 lobes:
Frontal (largest)
Temporal
Parietal
Occipital (smallest)
Telencephalon is the initiation center for?
Voluntary actions
Telencephalon is the final integration of:
Neural mechanisms
True or false a function of the telencephalon is memory & associative memory
True
Serves as basis for much of our emotional response aka:
Abstract thinking
What are the subdivisions of the cortex?
Neocortex & allocortex
What are the 6 common laminae of the neocortex? (external to internal)
Molecular I External granular II External pyramidal III Internal granular IV Internal pyramidal V Multiform VI
- The outer most lamina & nearest to the pia mater
- Filled w/ synaptic activity
Molecular Lamina I
- Small closely- packed granular neurons
- Axons extends into deeper lamina of the same cortex area
- Sometimes called the “INTRAcortical Association” layer
External granular layer Lamina II
- Small pyramidal - shaped neuron cells bodies
- Axons extend out of the cortex to the white matter & then return to the gray matter. (described as projection, association, or commissural fibers)
- Sometimes called the “INTERcortical Association” layer
External Pyramidal layer Lamina III
Lamina II & III are called the:
Associative lamina
Which lamina are the best developed in the human brain?
Lamina II & III
- Small closely packed cell bodies
- The specific THALAMIC INPUTS arrive here
(some thalamic input will reach the molecular layer, as well) - Well developed in sensory areas (touch, pain, sight, hearing)
Internal granular layer lamina IV
- Large pyramidal - shaped neuron cell bodies
- Even giant pyramidal (Betz) cells are found in certain areas
- Axons “project” to other brain & cord centers from here. (ex. Corticospinal, Corticobulbar fibers)
Internal pyramidal (ganglionic) layer lamina V
- Mix of incoming & outgoing fibers passing through
- Also has a number of projection neurons
Multiform layer lamina VI
Laminae V & VI are sometimes called the?
Projection laminae
