Cerebral Hemispheres Flashcards Preview

Neurology > Cerebral Hemispheres > Flashcards

Flashcards in Cerebral Hemispheres Deck (38)
Loading flashcards...
1

What are the dips and elevations on the brain surface called?

Sulcus
Gyrus

2

Where does the central sulcus run from?

Starts at the lateral sulcus and travels to the medial surface

3

What is the corpus callosum?

A collection of axons going between each of the hemispheres
connects the 2 hemispheres

4

What part of the dural layers is found in the sulci and gyri?

Pia mater

5

What part of the cortex does motor innervation come from?

Anterior part of the cerebral hemisphere

6

What part of the cortex does sensory innervation come from?

Posterior part of the cerebral hemisphere

7

What is the limbic system responsible for?

Storage and retrieval of processed information

8

What type of information does the frontal lobe send?

Motor

9

What is area 4 of the frontal lobe?

Precentral gyrus (Primary motor cortex)

10

What is the inferior frontal gyrus known as?

Broca's area of motor speech (area 4,45)

11

What is the role of the prefrontal cortex?

Cognitive functions of higher orders - intellect, judgement, prediction, planning

12

What type of information does the parietal lobe deal with?

Somatosensory

13

What are areas 3,1, and 2 of the parental lobe?

Primary sensory area

14

What is the role of the superior parietal lobe?

Interpretation of general sensory information and conscious awareness of other side of body

15

What does the inferior parietal lobe deal with?

Language functions (dominant hemisphere)

16

What is the main role of the temporal lobe?

Hearing
Smell

17

What is the found in the superior temporal gyrus?

Primary auditory cortex

18

What does the inferior temporal surface deal with?

Conscious appreciation of smell

19

What is the auditory association area known as on the dominant hemisphere?

Wernicke's area (crucial for understanding spoken word)

20

What is the primary role of the occipital lobe?

Vision

21

Where is the primary visual cortex found?

Either side of calcimine sulcus (medial surface of occipital lobe)

22

What is the role of the visual association cortex?

Interpretation of visual images

23

What is the role of the limbic lobe?

Memory
Emotional aspects of behaviour

24

What comprises the limbic lobe?

Cingulate gyrus
Hippocampus
Parahippocampal gyrus
Amygdala

25

What is aphasia?

Problem with speech sue to damage to one or more speech areas in the brain

26

What is Broca's aphasia?

Understands speech
Misses small words
Aware of speech difficulties
Weakness/paralysis on one side

27

What causes Broca's aphasia?

Damage to frontal lobe

28

What is Wernicke's aphasia?

Fluent speech with meaningless words
Can't understand speech
Unaware of mistakes
No paralysis

29

What causes Wernicke's aphasia?

Damage to temporal lobe

30

What are the 3 types of myelinated axon fibres

Commisural fibres
Association fibres
Projection fibres