Cerebrum Flashcards
The posterior part of this gyrus presents area 8 which is the main part of the frontal eyefield.
Middle frontal gyrus
Area 4
Precentral gyrus
lies on both sides of the ascending ramus of the lateral sulcus,
speech area (= Broca’s area)
Functionally it lodges the first or primary somatosensory area. Here also the body is represented upside down.
Postcentral gyrus
is situated at the lower end of the postcentral gyrus in the superior wall of the lateral sulcus and in the adjoining area of the insula (Brodmann area 43).
The taste area
The posterior end of the posterior ramus of the lateral sulcus which is surrounded by the supramarginal gyrus
area 40
The inferior parietal lobule receives the posterior parts of 3 sulci:
The posterior end of the posterior ramus of the lateral sulcus which is surrounded by the
supramarginal gyrus (area 40).
• The posterior end of the superior temporal sulcus which is surrounded by the angular gyrus
(area 39).
• The posterior end of the inferior temporal sulcus.
is present mostly in the floor of the lateral sulcus
the auditory area
Area 17,18 and 19
Visual areas in occipital lobe
a lying between the post calcarine and the parieto-occipital sulci,Its function is visual.
Cuneus
the terminal part of the cingulate sulcus and the parieto-occipital sulcus.
Precuneus
it is a straight sulcus that forms the lateral boundary of a longitudinal gyrus termed gyrus rectus.
Olfactory sulcus
it forms the lateral boundary of the uncus.
Rhinal sulcus
it extends posteriorly to end slightly near the occipital pole. Its anterior part forms the lateral boundary of the parahippocampal gyrus.
Collateral sulcus
it is bounded laterally by the collateral sulcus and medially by the calcarine sulcus.
Lingual gyrus