1.04-A -Neuron Protection and Nourishment Flashcards Preview

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Flashcards in 1.04-A -Neuron Protection and Nourishment Deck (63):
1

What three things protect the brain?

Bone

Meninges

Cerebral Spinal Fluid

2

Where does the brain get nutrients?

Vascular System

3

What are some autonomic tasks?

Breathing

Heartbeat

Etc.

4

What is the cerbral cortex?

The outer layer of the brain

The periphery

5

Where does the word "cerebral" come from?

The word for "cork" or "bark"

6

The cerbral cortex is the thin outer layer of the _____ the contains the _____ (______)

Cerebrum

Neural Tissue (Neurons)

7

Are all layers of the cerbral cortex the same?

No

Some are thicker and some are thinner

8

What is the triple layer of bone called?

Diploe

9

What are the three meninges called?

Dura Mater

Arachnoid Mater

Pia Mater

10

What is the Dura Mater?

 

(2)

Outermost meninge

A tough, leathery fibrous lining that attaches to the skull

11

What does Dura Mater mean?

Tough Mother

12

Is the Dura Mater a single layer?

 

(3)

No

It splits into two layers in places and allows for CSF to enter

These are called sinuses

13

What is the Arachnoid Mater?

 

(3)

Middle meninge

Has many blood vessels

Very delicate

14

What does "Arachnoid Mater" mean?

Spider Mother

15

What are the Arachnoid Granulations?

Extentions of the arachnoid mater that intrude into the dura mater sinuses

16

What do the Arachnoid Granulations do?

Absorb CSF

17

What is another name for the Arachnoid Granulations?

Arachnoid Villi

18

What are the Arachnoid Trabeculae?

Delicate strands of connective tissue that loosely connect the arachnoid mater and the pia mater

19

What do the Arachnoid Trabeculae do?

Creates the subarachnoid space which contains cerebrospinal fluid

20

What does Pia Mater mean?

Gentle Mother

21

What is the Pia Mater?

Most inferior meninge

Adheres to the brain

22

What does cerebral spinal fluid do?

Helps the brain to float and avoid mild impact injuries

Removes waste created from neural firing

23

What does Epidural mean?

Above the dura mater

24

What is another name for epidural?

Extradural

25

What does subdural mean?

Between the dura mater and arachnoid mater

26

What does subarachnoid mean?

Under the arachnoid mater

27

What is the Superior Sagittal Sinus?

A sinus formed by two layers of the dura mater

Forms at the superior junction of the two hemispheres

28

Where is CSF formed

By the ependymal cells

29

Where are the ependymal cells?

In the Choroid Plexus

30

CSF is a ____ derivative.

Blood

31

How much CSF do we produce in a day?

500 ml/day

32

What are ventricles?

The space inside the brain

33

How much CSF do our ventricles hold?

Around 125 ml

34

Where does CSF start?

In the Lateral Ventricles

35

Where does CSF go after the lateral ventricles?

Interventricular Foramen

(Foramen of Monroe)

36

Where does CSF go after the Interventricular Foramen?

The third ventricle

37

Where does CSF go after the third ventricle?

The cerebral aquaduct

38

Where does CSF go after the cerebral aquaduct?

The fourth ventricle

39

Where does CSF go after the fourth ventricle?

The lateral and median aperatures

40

Where does CSF after the lateral and median aperatures?

Subarachnoid space

41

Where does CSF go after the Subarachnoid space?

Superior Sagittal Sinus

42

Where does the Superior Sagittal Sinus get its CSF?

Subarachnoid Space

43

Where does the Subarachnoid Space get its CSF?

The lateral and medial apertures

44

Where do the lateral and medial apertures get their CSF?

The fourth ventricle

45

Where does the fourth ventricle get its CSF?

Cerebral Aquaduct

46

Where does the cerebral aquaduct get its CSF?

The third ventricle

47

Where does the third ventricle get its CSF?

Intracentricular Foramen

(Foramen of Monroe)

48

Where does the Intracentricular Foramen get its CSF?

Lateral Ventricles

49

Where do the Lateral Ventricles get their CSF?

Choroid Plexus

By the Ependymal Cells

50

What are these?

Q image thumb

Arachnoid Granulations

51

Label the following:

Q image thumb

A = Dura Mater

B = Arachnoid Mater

C = Arachnoid Trabeculae

D = Pia Mater

E = Artery

F = Subarachnoid Space

G = Subdural Space

52

What is this?

Q image thumb

Cerebral Cortex

(Grey matter)

53

Label the following:

Q image thumb

A = Choroid Plexus

B = Lateral Ventricle

C = Third Ventricle

D = Cerebral Aquaduct / Aquaduct of Sylvius

E = Fourth Ventricle

F = Sagittal Sinus

G = Arachnoid Granulation (Villi)

H = Subarachnoid Space

54

What is this called?

Q image thumb

Diploe

55

What kind of hemorrhage is this?

Q image thumb

Subarachnoid

56

What kind of hematoma is this?

Q image thumb

Epidural

57

What kind of hematoma is this?

Q image thumb

Subdural

58

Label the following:

Q image thumb

A = Dura Mater

B = Arachnoid Mater

59

Label the following:

Q image thumb

A = Arachnoid Mater

B = Pia Mater

60

Label the following:

Q image thumb

A = Dura Mater

B = Arachnoid Mater

C = Pia Mater

61

What is this?

Q image thumb

Superior Sagittal Sinus

62

Label the following:

Q image thumb

A = Lateral Ventricles

B = Interventricular foramen

C = Third Ventricle

D = Cerebral Aquaduct

E = Fourth Ventricle

F = Central Canal

63

Label the following:

Q image thumb

A = Lateral Ventricles

B = Interventricular foramen

C = Third Ventricle

D = Cerebral Aquaduct

E = Fourth Ventricle

F = Central Canal