● The `color{violet}("forebrain")` consists of `color{brown}("cerebrum, thalamus")` and `color{brown}("hypothalamus.")`
● `color{violet}("Cerebrum")` forms the major part of the `color{violet}("human brain.")`
● A deep cleft divides the `color{violet}("cerebrum longitudinally")` into two halves, which are termed as the left and right `color{brown}("cerebral hemispheres.")`
● The `color{violet}("hemispheres")` are connected by a tract of `color{violet}("nerve fibres")` called `color{brown}("corpus callosum.")`
● The layer of cells which covers the `color{violet}("cerebral hemisphere")` is called `color{brown}("cerebral cortex")` and is thrown into `color{violet}("prominent folds.")`
● The `color{violet}("cerebral cortex")` is referred to as the `color{brown}("grey matter")` due to its `color{violet}("greyish appearance.")`
● The `color{violet}("neuron cell bodies")` are concentrated here giving the colour.
● The `color{violet}("cerebral cortex")` contains `color{brown}("motor areas, sensory areas")` and large regions that are neither clearly sensory nor `color{violet}("motor in function.")`
● These regions called as the `color{brown}("association areas")` are responsible for complex functions like `color{violet}("intersensory associations, memory")` and `color{violet}("communication.")`
● `color{violet}("Fibres")` of the tracts are covered with the `color{violet}("myelin sheath,")` which constitute the inner part of `color{violet}("cerebral hemisphere.")`
● They give an `color{violet}("opaque white")` appearance to the layer and, hence, is called the `color{brown}("white matter.")`
● The `color{violet}("cerebrum wraps")` around a structure called `color{brown}("thalamus,")` which is a major coordinating centre for `color{violet}("sensory")` and `color{violet}("motor signaling.")`
● Another very important part of the brain called `color{brown}("hypothalamus")` lies at the base of the `color{violet}("thalamus.")`
● The `color{brown}("hypothalamus")` contains a number of centres which `color{violet}("control body temperature")` , urge for eating and drinking.
● It also contains several groups of `color{violet}("neurosecretory cells")`, which secrete hormones called `color{brown}("hypothalamic hormones.")`
● The inner parts of `color{violet}("cerebral hemispheres")` and a group of associated deep structures like `color{brown}("amygdala, hippocampus,")` etc., form a complex structure called the `color{violet}("limbic lobe")` or `color{violet}("limbic system.")`
● Along with the `color{violet}("hypothalamus,")` it is involved in the `color{violet}("regulation of sexual")` behaviour, expression of `color{violet}("emotional reactions")` (e.g., excitement, pleasure, rage and fear), and `color{violet}("motivation.")`
● The `color{violet}("forebrain")` consists of `color{brown}("cerebrum, thalamus")` and `color{brown}("hypothalamus.")`
● `color{violet}("Cerebrum")` forms the major part of the `color{violet}("human brain.")`
● A deep cleft divides the `color{violet}("cerebrum longitudinally")` into two halves, which are termed as the left and right `color{brown}("cerebral hemispheres.")`
● The `color{violet}("hemispheres")` are connected by a tract of `color{violet}("nerve fibres")` called `color{brown}("corpus callosum.")`
● The layer of cells which covers the `color{violet}("cerebral hemisphere")` is called `color{brown}("cerebral cortex")` and is thrown into `color{violet}("prominent folds.")`
● The `color{violet}("cerebral cortex")` is referred to as the `color{brown}("grey matter")` due to its `color{violet}("greyish appearance.")`
● The `color{violet}("neuron cell bodies")` are concentrated here giving the colour.
● The `color{violet}("cerebral cortex")` contains `color{brown}("motor areas, sensory areas")` and large regions that are neither clearly sensory nor `color{violet}("motor in function.")`
● These regions called as the `color{brown}("association areas")` are responsible for complex functions like `color{violet}("intersensory associations, memory")` and `color{violet}("communication.")`
● `color{violet}("Fibres")` of the tracts are covered with the `color{violet}("myelin sheath,")` which constitute the inner part of `color{violet}("cerebral hemisphere.")`
● They give an `color{violet}("opaque white")` appearance to the layer and, hence, is called the `color{brown}("white matter.")`
● The `color{violet}("cerebrum wraps")` around a structure called `color{brown}("thalamus,")` which is a major coordinating centre for `color{violet}("sensory")` and `color{violet}("motor signaling.")`
● Another very important part of the brain called `color{brown}("hypothalamus")` lies at the base of the `color{violet}("thalamus.")`
● The `color{brown}("hypothalamus")` contains a number of centres which `color{violet}("control body temperature")` , urge for eating and drinking.
● It also contains several groups of `color{violet}("neurosecretory cells")`, which secrete hormones called `color{brown}("hypothalamic hormones.")`
● The inner parts of `color{violet}("cerebral hemispheres")` and a group of associated deep structures like `color{brown}("amygdala, hippocampus,")` etc., form a complex structure called the `color{violet}("limbic lobe")` or `color{violet}("limbic system.")`
● Along with the `color{violet}("hypothalamus,")` it is involved in the `color{violet}("regulation of sexual")` behaviour, expression of `color{violet}("emotional reactions")` (e.g., excitement, pleasure, rage and fear), and `color{violet}("motivation.")`