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

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Flashcards in Lecture 20: Structure and layout of major brain areas, and basic motor + sensory pathways Deck (34):
1

Which layer of the meninges contains circulating cerebrospinal fluid?

- Arachnoid

2

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

- Arachnoid granulations

3

Gyrus = ?
Sulcus = ?

- Hills
- Valleys

4

The four lobes:

- Frontal
- Parietal
- Occipital
- Temporal

5

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

- Frontal
- Parietal

6

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

- Parieto-occipital sulcus

7

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

- Frontal + Parietal
- Temporal

8

The transverse fissure lies underneath the _____ lobe.

- Temporal

9

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

- Pre-central

10

The occipital lobe is concerned with mainly _____ functions.

- Visual

11

The parietal lobe is concerned mainly with _____ functions.

- Sensory

12

The temporal lobe is concerned with mainly _____ and ______.

- Memory
- Hearing

13

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

- Motor

14

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.

- Decision making
- Emotion
- Anticipating consequences
- Mental illnesses
- Pre-frontal cortex
- Alcohol

15

The primary motor cortex is located in the __-____ ____.
Execution of movement occurs here.

- Pre-central gyrus

16

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

- Pre-motor cortex
- Posterior
- Frontal

17

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

- Cerebral
- Corpus

18

The hypothalamus is involved in _______ functions.

- Homeostatic

19

The Diencephalon is made up of the _____ and ______.

- Thalamus
- Hypothalamus

20

The brain is made up of the....

- Cerebrum
- Diencephalon
- Midbrain
- Pons
- Medulla oblongata
- Cerebellum

21

The brainstem is made up of three things:

- Midbrain
- Pons
- Medulla Oblongata

22

Where the _____ _____ ends, the spinal cord starts.

- Medulla Oblongata

23

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

- Pons
- Medulla Oblongata

24

You can find the fourth ventricle behind the ______.

- Cerebellum

25

Fruit + nut bread is similar to a ......

- Coronal slice of the brain

26

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

- Grey

27

Why is white matter white?

- They're myelinated, fat appears white

28

The deep nuclei are a collection of ____ ____.

- Cell bodies

29

There are ____ lateral ventricles.

- Two

30

There are three types of white matter (tracts):
Give examples

- 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

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

- Lower extremities

32

Sensory information occurs in the ___-____ gyrus.

- Post-central

33

For sensory information there are ___ neurons:

- 3
- Dorsal root ganglion
- Medulla oblongata
- Thalamus

34

Integration between motor + sensory

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