Paired cerebral hemispheres

Collectively called ______________

cerebrum

Most __________ part of brain, cover the majority of the brain stem like a __________

superior; mushroom cap

Surface area is increased by

gyri and sulci

__________: elevated ridges covering the surface

gyri

__________: shallow grooves covering the surface

sulci

Deep grooves called __________ separate the brain into __________

fissures; lobes

The __________ separates the two hemispheres

longitudinal fissure

Each hemisphere has three regions

Superficial context of gray matter, Internal area of white matter, Basal Nuclei

1. Superior cortex of gray matter functions

Speech, memory, logical and emotional response, consciousness, interprets sense, voluntary movement

2. Internal Area of white matter composed of __________- (commissures) carrying impulses to and from the __________

fiber tracts; cortex

• __________ is a large fiber tracts that connects the __________

Corpus callous; cerebral hemispheres

• Important because ________________________________________

some cortical functional areas are only in one hemisphere

• __________ fiber tracts connect areas within a hemisphere

association

• __________ fibers tracts connect cerebrum to lower CNS centers

Protection

3. Basal Nuclei: Islands of __________ situated deep within white matter

grey matter

• Also called ____________________

basal ganglia

• Help regulate __________ motor activities by __________ sent to ____________________

voluntary; modifying; skeletal muscles