Flashcards in Lab 2: Brain Deck (82)
What are the cerebral peduncles?
White matter tracts that are projection fibres
What are the functions of the cerebellum?
Controls muscle tone
Intention vs achievement
What area is first affected by alcohol?
What exhibits ipsilateral (same side) control?
What does the pons control?
Communication between hemispheres of the cerebellum
What does the medulla contain?
White matter tracts
What are the five components of hearing and speaking?
Primary auditory cortex
Primary motor cortex (face)
Primary auditory area
What are the five general components of either hearing and speaking or reading and writing?
1) Receive input
2) Understand meaning
3) Plan response
4) Conduct response
5) Feedback evaluation
What are the 4 main primary areas?
Primary motor cortex
Primary somatosensory cortex
Primary visual cortex
Primary auditory cortex
What does the PMC control?
Voluntary muscle movement
What specific region of the PVC controls central vision?
What does the PAX receive information about? How is it organised?
Auditory information: pitch, tone, rhythm
Tonotopic organisation. Recognises high pitch in some areas and low pitch in other areas.
Do the four primary areas have any function in integrating information?
What are the four main secondary/association areas? What are the functions of each?
Exner's area: plans movements in writing
Broca's speech area: pans movements in speaking
Supramarginal and angular gyri: understanding reading and writing and giving meaning to written symbols.
Wernicke's area: understanding speech and giving meaning to sound
Where is Exner's area found?
In the premotor cortex, just before the part of the PMC associated with the hand.
What lies in the cortex? What makes up the white matter tracts?
Cell bodies of neurones. Send axons (white matter) which makes up white matter tracts.
What are the three types of white matter tract?
1) Commissural fibres/tract
2) Projection fibres
3) Association fibres
What function do commissural fibres have?
Transfers information between hemispheres.
What function do projection fibres have?
Transfers information from the top of the brain to the bottom
What function do association fibres have?
Transfers information within the same hemisphere. e.g. between gyri.
What does the head of the caudate nucleus run along?
The walls of the lateral ventricle