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2) Neuro > Week 1: Anatomy of the Brain & Skull > Flashcards

Week 1: Anatomy of the Brain & Skull Flashcards

1
Q

Frontal Gyri

A

In the frontal lobe; Has superior, middle, & inferior

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2
Q

PreCentral Gyrus

A

Just anterior to the precentral sulcus

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3
Q

PostCentral Sulcus

A

Just posterior to the central sulcus;

AKA the sensorymotor cortex

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4
Q

Temporal Gyrus

A

On the temporal lobe; Has superior, middle, & inferior

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5
Q

Cingulate Gyrus

A

Basically the limbic lobe

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6
Q

Orbital Gyrus

A

Undersurface of the frontal lobe

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7
Q

Longitudinal Fissure

A

Separates right & left hemispheres

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8
Q

Transverse Fissure

A

Separates cerebrum from cerebellum

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9
Q

Lateral Sulcus

A

Divides temporal lobe from parietal lobe

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10
Q

Central Sulcus

A

Divides frontal lobe from parietal lobe

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11
Q

Calcarine Sulcus

A

Splits occipital lobe into superior & inferior

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12
Q

Parietal-Occipital Sulcus

A

Divides parietal lobe from occipital lobe

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13
Q

Meningeal Reflections

A

Dura sometimes sinks in between hemispheres, sulci, etc

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14
Q

Fall Cerebri

A

Goes into the longitudinal fissure

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15
Q

Falx Cerebelli

A

Around the cerebellum near the vermis

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16
Q

Tentorium Cerebelli

A

Above the cerebellum

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17
Q

Diaphragma Sella

A

Thickening at the top of sella turcica to anchor the pituitary into the sella turcica

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18
Q

Orientation of Cerebellum

A

Flat surface is superior, Round surface is inferior

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19
Q

Vermis

A

Right down the middle of the cerebellum

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20
Q

Flocculonodular Lobe

A

Little thing on anterior surface of cerebellum

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21
Q

Corpus Cerebelli

A

Cerebellar Body

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22
Q

Horizontal Fissure of Cerebellum

A

On the sides

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23
Q

Primary Fissure of Cerebellum

A

Divides cerebellum into anterior & posterior portions

24
Q

What is the anatomical relationship of the pons to the cerebellum?

A

The pons is anterior to the cerebellum

25
Q

Anterior Cranial Fossa

Characteristics, Location, Contains, & Composition

A

Characteristics: Most shallow

Location: Lies over the nasal & orbital cavities

Contains: Frontal Lobe

Composition: Frontal, Ethmoid, & Sphenoid

26
Q

Middle Cranial Fossa

Characteristics,Location, Contains, & Composition

A

Characteristics: Has optic canal, superior orbital fissure, foramen rotundum, foramen ovale, foramen spinosum, & carotid canal

Location: Located centrally

Contains: Pituitary

Composition: Sphenoid & Temporal Bones

27
Q

Posterior Cranial Fossa

Characteristics, Contains, Composition

A

Characteristics: Deepest
Has internal acoustic meatus, foramen magnum, jugular foramina, & hypoglossal canal

Contains: Brainstem & Cerebellum

Composition: Occiput & Temporal Bones

28
Q

Mastoid Process

A

Bump off the lateral portion of the temporal bone

29
Q

Styloid Process

A

Long pointy thing that sticks down

30
Q

What sits in the sella turcica?

A

Pituitary Gland

31
Q

Where are there more axons in the spinal cord?

A

As you get closer to the brain

32
Q

Conus Medullaris

A

End of the spinal cord at L1

33
Q

Filum Terminal

A

Little string of nervous tissue that anchors the spinal cord to the dural sac; Is non-conductive

34
Q

Anterior Median Fissure

A

Big slit on the anterior aspect of the spinal cord

35
Q

Anterolateral Sulci

A

Where ventral rootlets exit the spinal cord

36
Q

Posterior Median Sulcus

A

Line on the posterior aspect of the spinal cord

37
Q

Posterior Median Septum

A

Lines on either side of the posterior median sulcus

38
Q

Posterolateral Sulci

A

Where the dorsal rootlets exit the spinal cord

39
Q

Gray Commissure

A

Connects each half of the “butterfly”

40
Q

White Commisure

A

Just anterior & posterior to gray commissure

41
Q

What is the only part of the spinal cord that has lateral horns?

A

T-Spine

42
Q

Why is the thoracic region of the spinal cord the only region to have really slim gray matter?

A

Because the T-SC doesn’t innervate limbs

43
Q

Laminate 1-4

A

Primary areas for exteroceptive/sensory fibers

44
Q

Lamina 5 & 6

A

Primary receiving areas for proprioceptive fibers; Has extensive connections w/higher centers for pain, temp, & touch

45
Q

Lamina 6

A

Deep Sensory Structure Input

Prominent in limb enlargements from T4-L2

46
Q

Lamina 7

A

Has internuncial pool

Largest lamina

47
Q

Lamina 8

A

Cell interconnections & origins of gamma efferent fibers

Decussating fibers cross anterior to the central canal

48
Q

Lamina 9

A

Alpha efferent (motor fibers) w/gamma & interneurons

49
Q

Lamina 10

A

Decussating Axons

50
Q

Purpose of horns in spinal cord

A

For SNS

51
Q

Denticulate Ligaments

A

Attaches pia to dura

Helps to keep the spinal cord suspended in space

*Extra thickenings on the model

52
Q

What landmarks help you determine anterior from posterior spinal nerve roots?

A

Only the dorsal root has ganglion

53
Q

What is the relationship between spinal meningeal layers & cerebral meningeal layers?

A

*

54
Q

What is the function of the filum terminal?

A

Anchors the spinal cord

55
Q

At what level of the vertebral column is the conus medullaris located & what lies inferior to that?

A

L1

Cauda equina lies inferior to the conus medullaris

56
Q

Primary Motor Cortex Location

A

Just anterior to the central sulcus

2) Neuro (12 decks)

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