Brain Flashcards
1
Q
complicated arrangement of folds
A
gyri
2
Q
what are the grooves called that separate gyri
A
sulci
3
Q
another term for sulci
A
fissures
4
Q
another term for inter hemispheric fissure
A
longitudinal fissure
5
Q
what is a deep groove separating the 2 cerebral hemispheres
A
longitudinal fissure
6
Q
what divides brain into rt and lt halves
A
longitudinal fissure
7
Q
what is located in the longitudinal fissure
A
falx cerebri and superior sagittal sinus (major vein)
8
Q
what are veins referred to as in the brain
A
sinues
9
Q
another term for sylvian fissure
A
lateral fisure
10
Q
what separates the frontal and parietal lobes of brain from the temporal lobe
A
lateral fissure
11
Q
another term for fissure of rolando
A
central fissure
12
Q
what separates the frontal and parietal lobes of cerebrum
A
central fissure
13
Q
what separates 2 of the major gyri on surface of brain
A
central fissure
14
Q
what is anterior to central fissure
A
pre-central gyrus
15
Q
what is posterior to central fissure
A
post-central gyrus
16
Q
what are the several large divisions of the brain
A
cerebrum, cerebellum, brainstem, and diencephalon
17
Q
largest portion of the brain
A
cerebrum
18
Q
what divides brain into rt and lt hemispheres
A
cerebrum
19
Q
what is the entire cerebrum composed of
A
gray and white matter
20
Q
what is gray matter
A
neuron bodies
21
Q
what is white matter
A
myelinated axons
22
Q
what is the outer most portion of the cerebrum
A
cerebral cortex
23
Q
what is composed of gray matter approximately 3-5 mm thick
A
cerebral cortex
24
Q
what is deep to the cortex
A
white matter
25
what contains pathways to transmit information to and from cortex
white matter
26
what is the densest portion of white matter
corpus callosum
27
what is most anterior aspect of each cerebral hemisphere
frontal lobe
28
what is the middle division of rt and lt hemispheres
parietal lobe
29
what is bounded superiolry by sylvian fissure
occipital lobe
30
what is also referred to as island of reil
insula
31
what is a dense collection of nerve fibers
corpus callosum
32
what connects rt and lt cerebral hemispheres
corpus callosum
33
what is the largest part of the hindbrain
cerebellum
34
what is positioned just below tentorium
cerebellum
35
what communicates with other parts of the brain
cerebellum
36
how does the cerebellum communicate with other parts of the brain
by way of superior, middle, and inferior peduncles
37
what contains medulla oblongata, pons and midbrain
brainstem
38
what is most inferior part of brainstem and hindbrain
medulla oblongata
39
what is the prominent bulge between midbrain and medulla oblongata
pons
40
what is located superior to pons at junction of middle and posterior cranial fossa
midbrain
41
what portion does the cerebral aqueduct transverse brain
midbrain
42
what is the portion of the forebrain
diencephalon
43
what is composed primarily of thalamus, hypothalamus, epithalamus, and pituitary gland
diencephalon/forebrain
44
what is a large nucleus in the medial part of each cerebral hemisphere
thalamus
45
what forms part of lateral wall of third ventricle
thalamus
46
what is found inferior to thalamus
hypothalamus
47
what connects the posterior lobe of pituitary gland by way of infundibulum
hypothalamus
48
what is the most significant feature of epithalaums
pineal gland
49
what is postponed at roof of midbrain
pineal gland
50
what is the pituitary galnd itself composed of
anterior lobe and posterior lobe
51
narrow cavity located between rt and lt halves of thalamus
third ventricle
52
what is between the cerebellum and the medulla oblongata
fourth ventricle
53
what allows for communication between lateral ventricles and third ventricle
foramen of monro (interventricular foramen)
54
what is the passage way connecting 3rd and 4th ventricles
cerebral aqueduct (Sylvian aqueduct)
55
what connects ventricular system to subarachnoid space
foramen of Luschka (lateral aperture)
56
what is the largest opening in 4th ventricle
foramen of magenpdie
57
what is a narrow fluid filled space circulating CSF in and around brain
subarachnoid space
58
what is each cistern named according to
structure it borders
59
what is the largest cistern
cistern magna
60
where is choroid plexus located
on floor of lateral ventricles
61
what is the network of capillaries that produces the CSF
choroid plexus
62
what are the 3 meninges
dura mater, arachnoid membrane, and pia mater
63
what is the tough outermost membrane of brain and spinal cord
dura mater
64
what is fibrous membrane attached to inner table of skull
dura mater
65
what are the 4 extensions into surfaces of brain of dura mater
falx cerebri, falx cerebelli, tentorium cerebelli, and arachnoid layer
66
what is the section of dura mater that folds into longitudinal fissure of brain
falx cerebri
67
what separates the 2 hemispheres of cerebrum
falx cerebri
68
what is folds of dura mater that forms a vertical partition between the 2 hemispheres of cerebellum
falx cerebelli
69
what is the fold of dura mater located in the transverse cerebral fissure
tentorium cerebelli
70
area outside dura mater
epidural space
71
space below dura mater
subdural space
72
what covers sella turcica
diaphragma sellae
73
middle meninx covering brain and spinal cord
arachnoid layer
74
fibrous membrane attache to inside of dura mater
arachnoid layer
75
innermost membrane of brain and spinal cord
pia mater
76
what is the highly vascular membrane attached to surface of brain
pia mater
77
what is the arterial anastomosis referred to as
circle of willis
78
what are the arteries that are included in circle of willis
internal carotid, posterior cerebral, anterior cerebral, posterior communicating, anterior communicating, and basilar artery
79
what is the blood supplied to circle of wills by
basilar, and two internal carotid arteries
80
where does the basilar artery supply blood to in brain
posterior portion
81
what are branches of the common carotid arteries
internal carotid arteries
82
where does the internal carotids supply blood to in brain
anterior, medial, and lateral regions
83
what circulates blood between major vessels that supply blood to the brain
communicating arteries
84
what joins the anterior cerebral arteries
anterior communicating artery
85
what are branches off of the internal carotids
anterior cerebral arteries
86
where does anterior cerebral arteries supply blood to in brain
anterior and medial
87
what joins the posterior cerebral arteries with the internal carotid arteries
posterior communicating arteries
88
what are branches off of the basilar artery
posterior cerebral arteries
89
where doe posterior cerebral arteries supply blood to brain
posterior portion
90
what is middle cerebral a branch from
internal carotid artery
91
where does middle cerebral supply blood to
lateral aspect of brain
92
what are the cerebral sinuses
venous drainage of brain
93
what is the venous cavity lying between two dural laters of falx cerebri along its attachment to inner table of skull
superior sagittal sinus
94
what does superior sagittal sinus continue as
transverse sinus
95
what is much smaller than superior sagittal sinus
inferior sagittal sinus
96
where does the inferior sagittal sinus vein run
posteriorly along the free edge of the falx cerebri
97
what is the venous space in the tentorium cerebelli along its attachment to he occipital bone
transverse sinus
98
what is the venous cavity formed by the junction of the inferior sagittal sinus
straight sinus
99
what is the great cerebral vein located along the attachment of the flax cerebri and tentorium cerebelli
straight sinus
100
what is the posterior junction of the superior sagittal, straight, and transverse sinus
confluence of the sinus
101
what is the continuation of the transverse sinus towards the jugular foramen dumping into the internal jugular vein
sigmoid sinus
