#1 anatomy Flashcards
1
Q
what is the cerebrum derived from embryologically
A
- telencephalon
2
Q
what is the dominant hemisphere of the cerebrum
A
- left - most people are right handed
3
Q
the cerebral hemispheres consists of 6 lobes, what are these?
A
- frontal, parietal, temporal, occipital, insular, limbic
4
Q
frontal extends from where to where?
A
- central sulcus to frontal pole
- lies superior to sylvian fissure
5
Q
what does frontal lobe contain?
A
- precentral gyrus: contains primary motor area
- sup frontal gyrus, middle frontal (contralateral voluntary eye movement), inferior frontal (broca speech area language production)
6
Q
what happens after damage to brocas area?
A
- expressive dysphasia -> patient can still comprehend words but produces faulty sentences and phonemic errors e.g. parket vs carpet
7
Q
parietal lobe extends from where?
A
- central sulcus to occipital lobe and lies superior to temporal lobe
8
Q
what does parietal lobe contain?
A
- postcentral gyrus: contain primary somatosensory area
- superior parietal lobule, inferior parietal - damage to tis area causes nominal aphasia -> problems recalling words, names and numbers
9
Q
temporal lobe lies where and extends from where to where?
A
- lies inferior to sylvan fissure
- extends from temporal pole to occipital lobe
10
Q
what does temporal lobe contain?
A
- superior temporal gyrus - contains aduitory area of cortex and wernickes speech area
- middle temporal gyrus
- inferior temporal gyrus
11
Q
damage to temporal lobe, particularly in dominant sup temporal gyrus what can have?
A
- receptive dysphasia
- individual has impaired comprehension and produces jargon ‘word salad’ however their speech is fluent
12
Q
where does occipital lobe lie
A
- caudal to parietal-occipital sulcus
13
Q
what does occipital lobe contain?
A
- visual cortex
14
Q
where does insula lie?
A
deep within lateral sulcus
15
Q
where is limbic system?
A
- group of structures located on medial hemisphere - that encircles corpus callosum
