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Flashcards in Nervous System Deck (82)
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1

What divides the frontal lobe and the parietal/temporal lobes?

Central sulcus

2

What divides the occipital lobe and the temporal/parietal lobes?

The parietooccipital sulcus and the preoccipital notch

3

Where is the primary motor cortex, what lobe is it a part of and what side of the brain and what is the function of it?

In the precentral gyrus, part of the frontal lobe and on the left hemisphere of the brain. It actions motor nerves.

4

What is associated with the frontal association cortex?

Intelligence, behaviour, mood, cognitive function and personality

5

Where is the motor planning area, what lobe is it a part of and what side of the brain and what is the function of it?

It is to the left of the primary motor cortex in the frontal lobe in the left hemisphere of the brain. It figures out which nerves need to be innervated to activate a certain muscle.

6

Where is the primary auditory cortex, what lobe is it a part of and what side of the brain and what is the function of it?

It is next to wernickes area in the temporal lobe just below the lateral fissure. It gets sound from the periphery and breaks it down into its individual tones - a tonotopic representation.

7

Where is the wernickes area, what lobe is it a part of and what side of the brain and what is the function of it?

Is next to the primary auditory cortex in the temporal lobe just below the lateral fissure. It interprets and understands the sound.

8

What is associated with the temporal association cortex?

Memory, mood, aggression and intelligence

9

Where is the SMGLA/AGLA, what lobe is it a part of and what side of the brain and what is the function of it?

These are found in the parietal lobe in the left hemisphere and they are involved in reading and writing

10

What is associated with the parietal association cortex?

Spacial skills, 3D recognition i.e shapes, faces, concepts and abstract perception

11

Where is brocas area, what lobe is it a part of and what side of the brain and what is the function of it?

Is an area in the motor planning cortex in the frontal lobe of the brain on the left hemisphere that is associated with the formulation of speech. It plans what muscles of the face should move in order to speak.

12

Where is the primary sensory cortex, what lobe is it a part of and what side of the brain and what is the function of it?

Is the postcentral gyrus in the parietal lobe on the left hemisphere of the brain. It is associated with sensations where the bigger the area on the humunculus, the more sensory neurons.

13

What is the arcuate fassiculus?

A bundle of arc shaped fibres that are used to send messages from wernickes to brocas areas

14

What is exeners area?

An area in the motor planning area that is associated with hand movement

15

What are the 3 types of aphasias?

- Fluent/wernickes
- Non-fluent/ Brocas
- Connectional

16

Describe fluent/wernickes aphasia:

Patient can hear sounds but not understand or interpret them. They can still speak and activate the right muscles to vocalise but they cannot understand what is being vocalised.

17

Describe non-fluent/brocas aphasia:

Patient can understand and interpret sounds but cannot vocalise a response. They cannot get the sound out because their motor planning is compromised.

18

Describe connectional aphasia:

Damage to the arcuate fasiculus results in the patient being able to understand what is coming in but their verbal response would not relate. Patient would still be able to read and write using supramarginal and angular gyrus and exeners area

19

If you hear something, describe the pathways across the brain that would be undertaken to verbalise a response:

The primary auditory cortex would get the sound and break it down into its individual tones so that wernickes can understand and interpret it. Once it has done this it sends the message across the arcuate fasiculus to brocas area which will decide what muscles of the face to activate and then the primary motor cortex will activate the muscles required for vocalisation.

20

Where are all of the functional areas relating to the speech and language located?

On the dominant hemisphere, usually the left

21

When looking at a medial view of the brain what would you see on the occipital lobe?

The primary visual cortex surrounding the calcarine sulcus with the secondary visual cortex surrounding it going down into the temporal lobe too.

22

What are the 4 parts of the spine?

Cervical, thorasic, lumbar and sacrum

23

How many total nerves are there in the spine?

31 pairs

24

For the part of the spine, how many nerves are there and how many vertebrae: cervical

8 pairs of nerves and 7 pairs of vertebrae

25

For the part of the spine, how many nerves are there and how many vertebrae: thorasic:

12 pairs of nerves and 12 pairs of vertebrae

26

For the part of the spine, how many nerves are there and how many vertebrae: lumbar

5 pairs of nerves and 5 vertebrae

27

For the part of the spine, how many nerves are there and how many vertebrae: sacrum

5 nerves and 5 vertebrae

28

What nerve is right at the very bottom of the spine to make up the last of the 31 total pairs of nerves?

1 pair of coccygeal nerves

29

Describe the cervical enlargement:

It is at C5 and is an enlargement to make more space for all of the nerves coming/going to the arms

30

Describe the lumbar enlargement:

It is an enlargement at T9 that is there because of all the nerves coming/going to the legs