Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CNS > Exam 1 part 2 > Flashcards

Exam 1 part 2 Flashcards

1
Q
  • double layers of sickle-shaped meningeal dura extending into a few brain fissures
  • “compartmentalize” vault and brain
  • support & protect from sloshing
A

dural falces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

frontal falx located in the great longitudinal cerebral fissure bt the two hemispheres
-extends from Crista Galli to internal occipital protuberance

A

falx cerebri

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  • lower falx that dips bt the cerebellar hemispheres in the posterior cerebellar notch
  • fixed at the internal occipital crest
A

falx cerebelli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  • tent like side (R/L) falces over the cerebellum and under the occipital lobes of the cerebrum
  • located in the transverse/horizonal cerebral fissue
A

tentorium cerebelli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  • opening left bt the R & L tentorial wings, brain stem comes up through this opening
  • brain structures can be supratentorial v infratentorial; for surgery
A

tentorial hiatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

dura that forms a “roof” over the pituitary fossa

-perforated in the middle by the infundibular stalk (to the pituitary)

A

diaphragma sellae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

diaphragma sellae

A

dural cephalgia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  • transparent, non-vascular membrane

- only dips into fissures or sulci when dura does

A

arachnoid mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

thin membrane formed by arachnoid + pia maters

A

leptomeninges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

apparent dural tumor that actually starts in the arachnoid membrane but quickly attaches to the dura

A

meningioma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

a potential space between the arachnoid and dura mater; should not have anything in it

A

subdural space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

a real space between the arachnoid and pia maters that is filled with CSF

A

subarachnoid space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

“holding tank” where subarachnoid space is particularly deep

A

subarachnoid cisternae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  • largest extracranial cistern
  • fills lumbar cul-de-sac
  • location of a spinal tap
A

lumbar cistern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  • largest cranial cistern, aka cisterna magna

- 4th ventricle opens into it via the median foramen

A

cerebellomedullary cistern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  • cistern w/ important BVs, veins & arteries

- pineal gland, and midbrain collicular bodies here

A

cistern of the great cerebral vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q
  • cistern anterior to pons

- lateral foramina enter laterally from the 4th ventrical

A

pontine cistern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

much of the cerebral arterial circle of willis vascularization is in this cistern

A

interpeduncular cistern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

tufted prolongation of arachnoid mater that herniate into the dura mater
-allow used CSF to be removed from the subarachnoid space & carried out cranial vault via DVS’s

A

arachnoid villi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q
  • innermost meninx, “tender mother”
  • dips into ALL fissues, sulci, folia of brain AND cord
  • along with arachnoid mater is part of leptomeninx
21
Q

-cells & collagen bundles continuous w/ arachnoid trabeculae, is continuous w/ BVs to/from CNS

22
Q

structure in the vertebral canal that is formed by pia that penetrates the arachnoid & fuse w/ the dura

A

denticulate ligaments

23
Q

-strand of fibrous tissue formed primarily by the outer pia, proceeds down from the apex of the conus medullaris

A

filum terminale internum

24
Q
  • layer of pia w/ fine reticular & elastic fiber that is adherent to the CNS tissue w/i
  • melanophores can be abundant here->melanoma
A

deeper pia

25
- "deeper" pial coating that surrounds larger BVs, dips in/out of CNS tissue - perivascular space is bt this and BV
pial cuff
26
accumulation of blood outside of the BV
hematoma
27
- a collection of blood in the potential space bt the skull & periosteal dura - due to head trauma - pressure must be surgically relieved or death
epidural hematoma
28
- collection of blood in the pt'l space bt meningeal dura & arachnoid - due to a shear injury, bridging vein rupture - chronic in elderly, acute (trauma) in younger - usually not as dangerous, smaller veins, doesn't escalate quickly
subdural hematoma
29
- collection of blood in subarachnoid space - traumatic: due to cerebral contusion - non-traumatic: spontaneous, "worst headache of my life" !!
subarachnoid hemorrhage
30
blood perfused through the brain each minute
800 ml
31
- leading cause of death in M&F >25yo w/ HBP or arteriosclerosis or both - most due to arterial blockage
stroke (CVA)
32
most common site for CVA/strokes
middle cerebral artery
33
most common site for strokes under chiropractic care
posterior inferior cerebellar arteries
34
-arteries that supply the majority (2/3) of blood to brain
internal carotid arteries
35
- anteromedial longitudinal artery trunk | - sends ~200 branches into the ventral aspect of the cord
AMLAT
36
posterior longitudinal artery trunks
PLLAT
37
- most common capillary type, lacks holes/fenestrae - is not leaky, joined tightly w/ thick basement - still has thin walls for oxygen/glucose to pass thru
continuous capillary
38
- structure that does not allow substances access into CNS structures via the bloodstream - mostly due to the continuous capillary - astrocytes assist in function
blood brain barrier
39
lipid soluble molecules, caffeine, alcohol, cocaine, nicotine, L-dopa
can cross BBB
40
water-soluble molecules, botulinum, dopamine
can't cross BBB
41
- large veins that lack valves, have a simple endothelial lining, and the dura acts as support - v. low BP
dural venous sinuses
42
- ~do NOT follow back the same course the arteries and arterioles follow into the CNS - form pial plexuses - most penetrate the arachnoid mater and meningeal dura to drain into the DVS's
CNS venules/veins
43
- longest DVS, receives used blood from scalp, bones, cerebrum via arachnoid villi - along the midline (falx cerebri) - blood flows into R transverse DVS
superior sagittal DVS
44
- DVS along post 2/3 of falx cerebri | - empties blood into straight DVS
inferior sagittal DVS
45
- DVS at jxn of falx cerebri, tent cerebelli, falx cerebelli | - drainage ~into the L transverse DVS
   straight DVS
46
- v. small DVS | - flow ~into L transverse DVS
occipital DVS
47
- bilateral structure at approx jxn of straight, occip, sup sag DVS - drainage away from confluens are via transverse DVS's
confluence of the sinuses
48
-large bilateral DVS running along fixed occipital bone margins of tentorium cerebelli
transverse DVS
49
- bilateral DVS that courses along the mastoid process of the temporal & occipital bone to the jugular foramen - continues w/ the internal jugular vein
sigmoid DVS

CNS (23 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions