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Flashcards in Neuroanatomy Deck (43)
1

What does CNS mean?

Central Nervous System

2

What does PNS mean?

Peripheral Nerous System

3

What are the seven regions of the brain?

Cerebral hemisphere

Diencephalon

Midbrain

Pons

Medulla Oblongata

Spinal Cord

Cerebellum

4

Lable the seven regions of the brain

5

What do Neurons do?

  1. Receive information
  2. Intergrate information
  3. Transmit electrical pusles to another neuron or effector cell

 

6

What are Glial cells?

Support cells for the neurons

7

What do astrocytes do?

Support

Maintain blood brain barrier

enviromental homeostasis

8

What type of cell is this?

Astrocyte

9

What cells produce myelin in the central nervous system ( but not the PNS)?

Oligodendrocytes

10

What are microglia?

Cells of similar lineage to macrophages

 

responsible for immune monitoring and antigen presentation in the brain

11

What type of cell is this?

Microglia

12

What are Ependymal cells and where do you find them?

Ciliated cuboidal columnar epithelium that line the ventricles

13

What are the small cracks called?

Sulcus ( plural sulci)

14

What are the blocks called

Gyrus (plural gyri)

15

What are the deep cracks called?

Fissures

16

Name this structure

Posterior Columns

17

Name this sturcture

Posterior Dorsal Horn

18

Name all the arrows

Posterior horn

Posterior columns

Lateral Columm

Anterior column

Anterior horn

19

Name the Different features of the brain shown below

20

What are the diferent parts of the brain shown here

21

What are the different parts of the brain shown here?

22

What are the three layers of the meninges?

Dura mater

Arachnoind Mater

Pia Mater

23

What are the 4 lobes of the Cerebral Hemispheres?

Frontal lobe

Parietal Lobe

Temporal Lobe

Occipital Lobe

24

What are the names of the arteries

25

Where do the dural venous sinuses drain in to?

Internal Jugular vein.

26

Lable the venous drainage of the brain

27

How does the spinal cord taper off ?

Terminates in a tapered cone called the conus medullaris

 

continues as the thin connective cord called the filum terminale

28

Where does the filum terminale attatch on to?

The dorsum of the coccyx

29

What does the denticulate ligament do?

its a ribbon of tissue on the lateral aspects of the spinal cord which attatch to the dura at points along the length of the cord .

30

What is the denticulate ligament made off? 

Pial and arachnoid tissue

31

What is the spinal cord made of ?

Outer layer of white matter

Inner "H" shaped layer of grey matter

32

What are the four columns of the spinal cord?

33

What do you find the lateral horns?

spinal segements T1 to L2

34

What is found inside the lateral horns?

Preganglionic Sympathetic neurons

35

What are the three aterial supplies to the spinal cord?

Three major longitudinal arteries

Segmental Arteries

Radicular Arteries

36

What is the epidural space?

The space between the dura of the spinal cord and the bone.

 

It is ustilized in epidural anaesthesia

37

What is useful to remember about the ratio of white matter to grey matter in the spinal cord?

As you go down the cord the white matter occupies a smaller proportion of the cord

38

What signals does the dorsal column deal with?

Fine touch and conscious proprioception

39

What does proprioception mean?

A sense or perception, usually at a subconscious level, of the movements and position of the body and especially its limbs, independent of vision;

40

how are somatotopic organisation of the motor nureurons mapped on to the cortex?

Feet

Legs

Arms

Hands

Face

 

41

What does the Corticospinal Tract do?

Fine precise movements particulary of distal limb muscles

42

What does the Tectospinal Tract do?

Mediates reflex head and neck movements due to visual stimuli

43