Exam 1 Part 3 Flashcards
Insulates the axons of neurons to allow electrical impulses to be conducted (~100 meters/second
Myelin
____ matter processes and regulates information in the CNS
Gray
Where is gray matter located?
Cortex, cerebellum, thalamus, basal ganglia, and spinal cord
White matter tract that connects different structures/areas within a single cerebral hemisphere
Association fibers
White matter tract that connects analogous (similar) areas between two cerebral hemispheres
Commissural fibers
White matter tract that transmit motor movements from CNS to PNS and transmits sensory signals from PNS to CNS
Projection fibers
Where do the projection fibers project from?
From brain to spinal cord
Why do we need commissural fibers between the left and right hemisphere?
Connect emotion, prosody, pragmatics, intonation differences during speech
Why are projection fibers important?
Need motor planning, respiration, motor movement for speech and language
Divides the brain into left and right halves
Longitudinal fissure
Connects the right and left hemispheres through white matter
Corpus callosum
Brain hemisphere that houses the ability to interpret nonlinguistic signals (facial expression, prosody, gestures)
Right hemisphere
What are some issues with prosody if someone has a right hemisphere deficit?
Concrete comprehension of language, monotone
What are some issues with facial expressions if someone has a right hemisphere deficit?
Inability to recognize facial expression, flat affect
What are some issues with melody and rhythm if someone has a right hemisphere deficit?
Problems with recognize/interpret music, problem produce music
