Chapter 3 Flashcards
What is the nervous system responsible for?
responsible for monitoring our body’s state
1) conducting messages from the senses and organs
2) conducting messages to the organs and muscles through nerves
Central Nervous System
Spinal Cord
Brain
Peripheral Nervous Sytem
Consists of 12 cranial nerves
31 spinal nerves that interact with the CNS
Brainstem:
Medulla oblongata
pons
thalamus
midbrain
Cerebellum
Motor functions (coordinates motor learning)
Language processing
higher-order cognitive and emotional functions (the exact nature is unknown)
Executive Functioning
working memory, divided attention, affect or emotion.
How does information travel
from the upper part of the brain to the cerebellum and back again.
Cerebrum
Most sensory and motor functions in the cerebrum- contralateral. (each hemisphere is related to the opposite side of the body (a few exceptions). Nerves cross to opposite side of body)
What parts are in the cerebrum
Cerebral cortex (grey matter), white matter (The subcortical ‘white matter’: children with autism-more diffuse white matter-leading to different processing) , gyrus, and sulcus.
The fiber tracts are of 3 types:
Association, Projection, and Transverse.
Each hemisphere:
Consists of white fibrous connective tracts covered by gray cortex of nerve cell bodies.
Association Fibers
run between different areas within each hemisphere.
Projection Fibers
connect the cortex to the brainstem and below.
Transverse Fibers
Connect the two hemispheres-largest one is corpus callosum.
Each hemisphere is divided into four lobes:
Frontal, Parietal, temporal, and occipital
Right Hemisphere
-Holistic processing and visuospatial processing
-Extralinguistic aspects of communication (picking up on intonation)
-Comprehension of complex linguistic (statements that hold ambiguity)
-Pragmatics (language in a social context)
Frontal Lobe
Makes sense of information for decision making
Responsible for behavioral traits
Important for language production
Frontal Association Area
Pre-frontal Cortex
-Executive functions
-Synthesis of sensory and motor information