Lesson 3 Flashcards
What are the 3 major division of the brain?
cerebral cortex, subcortical structures, brain stem and cerebellum
true or false? if false, correct the statement
the cerebral cortex is the outer areas, the subcortical structures are the inner areas, and the brain stem + cerebellum are deep structures
true
Fill in the blank:
top of the brain:
bottom of the brain:
back of the brain:
front of the brain:
middle of the brain:
to the side of the brain:
dorsal
ventral
posterior
anterior
medial
lateral
regions of indentation of brain are called?
sulcus
regions of the bumps that come out are called?
gyrus
gray matter is primarily what?
dendrites and cell bodies
is gray matter lighter or darker in an MRI scan?
darkers
white matter is primarily what?
myelinated axons
is white matter lighter or darker in an MRI scan?
lighter
What are the shallower groovers between gyri?
sulci
What are the larger grooves dividing the brain into lobes or hemispheres, such as the
longitudinal or interhemispheric fissure
fissures
what is the biggest connection between the two hemispheres of the brain?
the corpus callosum
Label
- sylvian fissure
- central sulcus
What are two other small areas that connect the two hemispheres?
the anterior and posterior commissure
is type of matter is the corpus callosum? what is its role?
white matter; creates fast communication between the right and left hemispheres
true or false? if false, correct the statement
X,Y,Z coordinates sagittal, coronal, axial
true
horizontal or axial is the __ axis
z
sagittal is the __ axis
x
coronal is the __ axis
y
__ axis increases from
left to right
x