Week 1 Flashcards by Anthony Micheles

Dome like rood of skullcap =

Calvaria

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Cranial base is the…

Basicranium

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3 sutures, internal surface of calvarium

Coronal

Sagittal

Lamboidal

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T/F cranial sutures obliterate with age

True

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Frontal crest attaches to___

Falx cerebri

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Sagittal groove deepens posteriorly to accommodate ___ which helps to ____ fluid

Sagittal sinus

Drain

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Venous lacuna accommodate ___ from arachnoid granulations

Drainage of CSF

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Fossa=

Depression

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Granular lacunae on either side of midline accommodate ___ (drainage of ___ from arachnoid granulations) and become ___ and ___ with age

Venous lacunae

CSF

Larger

Deeper

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Intracranial surface is grooved for ___ vessels

Middle meningeal vessels

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Blows to head can result in Fx or tear periosteum, can produce rapid intracranial hemorrhage…AKA ____ . Is this dangerous?

Epidural hematoma

YES! It is dangerous

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Internal occipital crest is below ___ of sinuses and provided attachment for ___

Confluence

Falx cerebelli

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Basicranium is divided into 3 parts:

Anterior cranial fossa

Middle cranial fossa

Posterior cranial fossa

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Anterior cranial fossa accommodates ___of brain

Frontal lobes

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Middle cranial fossa container ___ and ___

2 temporal lobes

Diencephalon

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Posterior cranial fossa accomadates ___ lobes ,___, and ___

Occipital

Brain stem

Cerebellum

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Attachment point for falx cerebri is

Frontal crest

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Formanen cecum = ______ vein passed through

Blind opening

Emissary

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T/F Orbital plates are part of frontal bone

True

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Ethmoid contains which nerves

Olfactory

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Foramen cecum contains which vein

Emissary

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Optic canal contains which nerve, artery, and vein

CN II

Opthalmic artery

Central vein of retina

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Foramen rotundum houses which nerve

CN V2

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Superior orbital fissure houses which nerves and which vein?

CN II

CN IV

CN V1

CN VI

Superior opthalmic vein

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Foramen ovale houses which nerve

CN V3

Foramen spinosum hold what artery

Middle meninges

Foramen lacerum contains which artery and nerve

Carotid artery Great superficial petrosal nerve

Internal auditory meats houses which nerves

CN VII CN VIII

Jugular foramen houses which nerves and vein

CN IX CN X CN XI Internal jugular vein

Hypoglossal canal houses what nerve

CN XII

Posterior condular canal house which vein

Emissary vein

CSF contains approx ___ % of plasma glucose levels

66%, or 2/3

3 functions of CSF\_\_\_\_ and ___ CNS against concussive injury Transports ___ and hormone releasing factorsRemoves ___ through absorbtion

Supports and cushions Hormones Metabolic

CSF is produced by ___ and the entire volume is turned over ___ times per day

Choroid plexus 3-4

There are ___ ventricles Each are lined with ___ and contain CSF

4 Ependyma

Ventricles contain ___ which produces CSF at rate of 500 ml/day

Choroid plexus

Ventricles communicate with subarachnoid space via ___ in the ___ ventricle

3 foramina 4th ventricle

There are ___ lateral ventricles located in cerebral hemispheres

2 lateral ventricles communicate with 3rd ventricle via \_\_\_

Interventricular forimina

The interventricular foramina which communicates lateral ventricles with 3rd vertical is also know as

Interventricular foramina of MONRO

Lateral ventricles consist of 5 parts: Frontal (anterior) ______ of lateral ventricle \_\_\_ horn of lateral ventricle \_\_\_ horn of lateral ventricle \_\_\_\_ (antrum) of lateral ventricle

Frontal horn of lateral ventricle BodyTemporal (inferior) horn Occipital (posterior) horn Trigone

Frontal horn of lateral ventricle is formed by head of \_\_\_

Caudate nucleus

Head of caudate nucleus (\_\_\_ horn) can be affected by \_\_\_

Frontal horn Huntington’s disease

The body of lateral ventricle communicates with 3rd ventricle via \_\_\_

Interventricular foramina of Monro

Temporal horn of lateral ventricle has a ___ plexus

Choroid

Occipital horn of lateral ventricle lacks \_\_\_plexus

Choroid

Trigone of lateral ventricle produces most of ___ and contains ___ which can be calcified in adults and visible on X-ray

CSF Glomus

3rd ventricle is located in the \_\_\_

Diencephalon

3rd ventricle communicated with lateral ventricles via ___ and communicates with 4th ventricle via\_\_\_

Interventricular foramina of Monro Cerebral aqueduct

The cerebral aqueduct (of \_\_\_) is the weakest and is located in \_\_\_

Sylvius Midbrain

Cerebral aqueduct connects ___ and ___ ventricles

3rd 4th

Cerebral aqueduct of Sylvius lacks ___ plexus

Choroid

Blockage of cerebral aqueduct of Sylvius leaders to

Hydrocephalus

4th ventricle Lise’s between ___ and brainstem

Cerebellum

4th ventricle contains a pair of __ plexuses in its ___ roof

Choroid Caudal

CSF flows from the 4th ventricle into the subarachnoid space via 2 lateral forimina of ____ and a single medial foramen of

Lushka Magendie

Circulation of CSF from lateral ventricles via interventricular foramina of ___ to ___ ventricle

Monro 3rd

Circulation of CSF from 3rd ventricle via ___ aqueduct to the __ ventricle

Cerebral 4th

Circulation of CSFFrom the 4th ventricle to central canal of spinal cord OR\_\_\_ space via 2 ___ and 1 ___ apertatures

Subarachnoid Lateral Medial

Circulation of CSF from subarachnoid space to superior ___ sinus it enters ___ circulation with help of ___ villi

Sagittal Venous Arachnoid

Cerebellomedullary cistern (aka Cisterna \_\_\_) Is the largest and located behind ___ and below \_\_\_

Manga Medula Cerebellum

\_\_\_\_ cistern is located in front of Pons

Pontine

Cisterna interpuducularis is located between cerebellum and \_\_\_

Midbrain

Interpeduncular cistern is located between ____ and midbrain

Cerebellum

Superior cistern=

Quadrigeminal cistern OR Cistern of the great cerebral vein

Ambient cistern (AKA Cisterna \_\_\_) are thin sheet-like extension of the ___ cistern that extend ___ through the midbrain. Connects with ___ cistern

Ambiens Superior Laterally Interpeduncular

One way bulk flow of of CSF from arachnoid space to venous system happens via ___ through giant \_\_\_

Endocytosis Vacuoles

Lumbar puncture occurs between ___ lumbar vertebra

3rd and 4th

Hydrocephalus is the dilation of cerebral ventricles caused by blockage of ___ pathways.Characterized by excessive ___ of CSF in ____ ventricles or subarachnoid space

CSF Accumulation Cerebral

Circumventricular organs are ___ zones that monitor concentrations of hormones/ chemicals in blood & CSF

Chemosensitive

Circumventricular organs (ARE/ ARE NOT) highly vascularized. Have ___ blood capillaries(DO/ DO NOT) have blood-brain barrier

ARE highly vascularized Fenestrated DO NOT have a blood-brain barrier

Circumventricular organs are usually part of the ___ located in the periphery of of the 3rd ventricle.

Diencephalon

Area postema is a circumventricular organ is located on either side of ___ ventricle rostral to the \_\_\_

4th Obex

Area postrema triggers ___ in response to circulating ___ substances. Regulation of ___ intake and ____ system

Vomiting Emetic Food Cardiovascular

Longitudinal fissures separates the ___ hemispheres

Cerebral

Transverse fissure separates ___ and \_\_\_

Cerebrum Cerebellum

Longtitudinal fissure separates ___ hemispheres

Cerebral

Transverse fissure separates ___ hemispheres from\_\_\_

Cerebral Cerebellum

Most important layer of the neocortex is the ___ granular (#\_\_\_) which form the stripe of \_\_\_

Internal IV Stripe of Gentry