Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
Define association fibers.
|
Fibers that travel between different parts of the same hemisphere
|
|
|
What are the two types of association fibers?
|
Short and long.
|
|
|
What do short association fibers link?
|
Different gyri within a lobe.
|
|
|
What do long association fibers link?
|
Different lobes within a hemisphere
|
|
|
Name the 6 long association fibers.
|
Superior occipitofrontal, inferior occipitofrontal, superior longitudinal, unicate, inferior longitudinal, and cingulum fasciculi.
|
|
|
What two lobes does the superior occipitofrontal fasciculus link?
|
Frontal to occipital
|
|
|
What two lobes does the inferior occipitofrontal fasciculus link?
|
Frontal to occipital
|
|
|
What two lobes does the superior longitudinal fasciculus link?
|
Frontal to occipitotemporal cortex
|
|
|
What two lobes does the unicate fasciculus link?
|
Frontal to anterior temporal
|
|
|
What two lobes does the sinferior longitudinal fasciculus link?
|
Occipital to temporal
|
|
|
What two lobes does the cingulum fasciculus link?
|
Underlies the cortex of te cingulate gyrus.
|
|
|
Define commissural fibers
|
Link matching areas of both hemispheres.
|
|
|
What is the largest commissural fiber connection?
|
Corpus callosum of white matter.
|
|
|
Of the corpus callosum, what are the parts of the main body, which is visible on section along the longitudinal fissure?
|
Trunk, splenium, genu, rostrum.
|
|
|
Some fibers run superior lateral from the body, intersecting the _________.
|
Corona raiata.
|
|
|
What is the Tapetum of the corpus callosum?
|
A collection of fibers that run laterally and then inferiorly to reach temporal and occipital lobes.
|
|
|
The occipital forceps are also known as the _____ forceps.
|
Major
|
|
|
The frontal forceps are also known as the _________________ forceps.
|
Minor
|
|
|
The occipital forceps travel between ____________ via __________.
|
Medial walls of the occipital lobe; splenium.
|
|
|
The frontal forceps travel between the __________ via ____________.
|
Medial walls of the frontal lobe; genu.
|
|
|
What does the anterior commisure connect?
|
Anterior parts of the temporal lobes and the two olfactory tracts.
|
|
|
Trace the pathway of the posterior commisure.
|
Fibers from pretectal nucleus that are travel to oculomotor nucleus.
|
|
|
The posterior commisure controls __________.
|
Pupillary response to light (CN III).
|
|
|
What does the habenular commissure connect?
|
The thalamus with the contralateral habenular nucleus.
|
|
|
What are projection fibers?
|
Fibers that leave the cerebrum to subcortical nuclei in the cerebral hemisphere, brainstem, and spinal chord.
|
|
|
Where are projection fibers found?
|
Internal capsule and corona radiata.
|
