3-Cranial Fossa, Brain, Meninges Flashcards
1
Q
major fissures of cerebrum
A
- longitudinal- divides hemispheres
- lateral/sylvius sulcus
- transverse
2
Q
hemispheres
A
- frontal- motor
- parietal-sensory
- temporal- auditory, memory
- occipital- vision
- limbic
- insula
3
Q
central sulcus
A
divides precentral gyrus (motor) from postcentral gyrus (sensory)
4
Q
corpus callosum
A
white matter tract that crosses from R to L hemisphere
5
Q
other sulcus in cerebrum
A
- parietooccipital
- calcarine (vision)
6
Q
limbic lobe
in cerebrum
A
oldest part of cortex
-borders corpus callosum
-extends to medial surface of temporal lobe
memory, learning, self preservation
7
Q
insula
A
see by splitting lateral fissure
superficial to basal nuclei
8
Q
diencephalon
cerebrum
A
- thalamus- sensory
- hypothalamus- ANS
- epithalamus- day/night cycle
9
Q
brainstem
A
- midbrain- cerebral peduncles (ant), superior/inferior colliculi (post)
- pons- egg shape, middle cerebellar peduncle
- medulla- olives, pyramids, (anterior) cuneate and gracile tubercle (posterior)
10
Q
cerebellum
A
-below transverse fissue
-fine motor
-eye coordination
11
Q
cranial nerves
midbrain
A
- olfactory I
- optic II
- oculomotor III
- trochlear IV
12
Q
pons cranial nerves
A
- trigeminal V
- abducens VI
- facial VII
- vestibulocochlear VIII
13
Q
medulla cranial nerves
A
- glossopharyngeal IX
- vagus X
- hypoglossal XII
- accessory XI
14
Q
blood supply
A
- internal carotid- anterior circ, branches into anterior + middle cerebral A’s
- vertebral- posterior circ, R and L will combine into basilar @ pontomedullary jxn
- basilar- terminal branches into post cerebral As
15
Q
circle of willis
blood supply
A
- anterior cerebral - from internal carotid A, enters the longitudinal fissure
- middle cerebral- from internal carotid A, enters lateral cerebral sulcus
- posterior cerebral- from basilar A, enters transverse fissure
- anterior communicating- joins R and L anterior cerebrals
- posterior communiacting- joins internal carotid to post cerebral A
