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HUBS 191💃✨ > Lecture 20: Structure and layout of major brain areas, and basic motor + sensory pathways > Flashcards

Lecture 20: Structure and layout of major brain areas, and basic motor + sensory pathways Flashcards

1
Q

Which layer of the meninges contains circulating cerebrospinal fluid?

A
  • Arachnoid
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2
Q

Which structure is important for removal of old/used CSF?

A
  • Arachnoid granulations
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3
Q 
Gyrus = ?
Sulcus = ?
A
  • Hills

- Valleys

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4
Q

The four lobes:

A
  • Frontal
  • Parietal
  • Occipital
  • Temporal
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5
Q

The central sulcus is located between the _____ and the _____ lobe.

A
  • Frontal

- Parietal

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6
Q

The sulcus located between the parietal and occipital lobe is called the….

A
  • Parieto-occipital sulcus
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7
Q

The lateral sulcus is found between the _______ lobes and the _____ lobe.

A
  • Frontal + Parietal

- Temporal

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8
Q

The transverse fissure lies underneath the _____ lobe.

A
  • Temporal
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9
Q

The __ - ____ gyrus is located before the central sulcus.

A
  • Pre-central
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10
Q

The occipital lobe is concerned with mainly _____ functions.

A
  • Visual
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11
Q

The parietal lobe is concerned mainly with _____ functions.

A
  • Sensory
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12
Q

The temporal lobe is concerned with mainly _____ and ______.

A
  • Memory

- Hearing

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13
Q

The posterior part of the frontal lobe primarily concerns itself with ______ functions.

A
  • Motor
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14
Q

The anterior part of the frontal lobe primarily concerns itself with ….. and is called the __-___ cortex. This is the most immature part of our brain, because it is the last place where myelination takes place. _____ can damage it.

A
  • Decision making
  • Emotion
  • Anticipating consequences
  • Mental illnesses
  • Pre-frontal cortex
  • Alcohol
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15
Q

The primary motor cortex is located in the __-____ ____.

Execution of movement occurs here.

A
  • Pre-central gyrus
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16
Q

Planning of movement is what happens in the __-___ ____ which is located in the _____ part of the ______ lobe.

A
  • Pre-motor cortex
  • Posterior
  • Frontal
17
Q

The cerebrum is made up of the _____ cortex and the _____ callosum.

A
  • Cerebral

- Corpus

18
Q

The hypothalamus is involved in _______ functions.

A
  • Homeostatic
19
Q

The Diencephalon is made up of the _____ and ______.

A
  • Thalamus

- Hypothalamus

20
Q

The brain is made up of the….

A
  • Cerebrum
  • Diencephalon
  • Midbrain
  • Pons
  • Medulla oblongata
  • Cerebellum
21
Q

The brainstem is made up of three things:

A
  • Midbrain
  • Pons
  • Medulla Oblongata
22
Q

Where the _____ _____ ends, the spinal cord starts.

A
  • Medulla Oblongata
23
Q

Cranial nerves can be found in the ____ and ____ ____ (the hindbrain).

A
  • Pons

- Medulla Oblongata

24
Q

You can find the fourth ventricle behind the ______.

A
  • Cerebellum
25
Q

Fruit + nut bread is similar to a ……

A
  • Coronal slice of the brain
26
Q

The cerebral cortex (outer layer) is made up of _____ matter.

A
  • Grey
27
Q

Why is white matter white?

A
  • They’re myelinated, fat appears white
28
Q

The deep nuclei are a collection of ____ ____.

A
  • Cell bodies
29
Q

There are ____ lateral ventricles.

A
  • Two
30
Q

There are three types of white matter (tracts):

Give examples

A
  • Commissural tracts (side to side) eg. Corpus Callosum
  • Projection tracts (axons extend between cortex + other CNS areas) eg. Corticospinal tracts
  • Association tracts (stay on same side, communication between brain areas) eg. Motor Cortex Somatosensory Cortex
31
Q

Cell bodies found in the medial primary motor cortex causes movement in the _____. Damage here will cause paralysis.

A
  • Lower extremities
32
Q

Sensory information occurs in the ___-____ gyrus.

A
  • Post-central
33
Q

For sensory information there are ___ neurons:

A
  • 3
  • Dorsal root ganglion
  • Medulla oblongata
  • Thalamus
34
Q

Integration between motor + sensory

A
  • Motor cortex initiates movement
  • Copy of movement info sent to cerebellum
  • Some sensory info sent to cerebellum to make sure info matches up
  • /finish

HUBS 191💃✨ (39 decks)

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