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Lobes of cerebral hemisphere - Coggle Diagram
Lobes of cerebral hemisphere
is divided into 4 lobes.
The boundaries
separating one lobe from the other on the superolateral surface of
cerebral hemisphere are formed by
3 prominent sulci
and 2 imaginary lines.
Sulci,
which separate the lobes, are:
Central sulcus or
fissure of Rolando
sylvian sulcus or
Posterior ramus of lateral
Parieto-occipital sulcus.
Imaginary lines which complete the subdivisions of the hemisphere into lobes are:
1st imaginary line connects the
upper end of parieto-occipital sulcus
to the parieto-occipital notch
2nd imaginary line is a backward continuation of the posterior ramus of lateral sulcus
to meet the first imaginary line.
Lobes of each cerebral hemisphere as seen on superolateral surface are:
Frontal lobe
It lies in front of the central sulcus
and above the posterior ramus of lateral sulcus.
It is concerned with
motor
functions.
Parietal lobe
It lies between the central sulcus
and parieto-occipital sulcus
and upper part of first imaginary line.
Below, it is separated
from the temporal lobe
by the posterior ramus of lateral sulcus
and its continuation (the second imaginary line).
It is concerned with
sensory
functions.
Lobes of each cerebral hemisphere as seen on superolateral surface are:
Temporal lobe
It lies below the posterior ramus of lateral sulcus and its continuation the second imaginary line. Behind, it is separated
from the occipital lobe by the lower part of the first imaginary line.
It is concerned with
hearing.
Occipital lobe
It lies behind the parieto-occipital sulcus and its
continuation the first imaginary line.
It is concerned with
vision