name the different parts of the brain. also, explain them
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INTRODUCTION:Brain is present in the hard bony box like structure called cranium .it is covered by three layers called the meninges.
Brain has the following division
1.Forebrain-cerebrum,diencephalon
2.Midbrain -optic lobes
3.Hindbrain-cerebellum,medulla oblongata
cerebrum:it consists of two lobes called cerebral hemisphere .the surface of the cerebrum has many folds
they appear as elevation (gyri)and depression (sulci).sulci are very prominent and divide each hemispheres into fourlobes.(frontal,parietal,temporal,occipital)
function:seat of mental ability ,control thinking ,memory ,reasoning ,perception ,emotions and speech .
Diencephalon-it lies b/w cerebrum and mid brain .it is divided into thalamus and hypothalamus .
function :relay center for sensory impulses ,such pain ,temperature and light .
.center for certain emotions such as anger
.center for water balance ,blood pressure ,body temperature ,sleep and huger
.hypothalamus control the pituitary gland which function as the master gland.
Midbrain:this is a small thick stalked portion .thos connects forebrain with cerebellum and pons of hindbrain
function:it relays motor impulses from the cerebral cortex to the spinal cord and relays sensory impulse from the spinal cord to the thalamus ,reflexes for sight and hearing
HINDBRAIN:cerebellum -it is located below the cerebrum and above medulla oblongata.it consist of two large cerebellar hemisphere
function .maintains posture,equilibrium and muscle tone
.coordinate voluntary movements
Medulla oblongata-it extends from pons to spinal cord.
function-contains center for cardiac ,respiratory and vasomotor activities
.coordinates reflexes like swallowing ,coughing ,sneezing and vomiting .
Brain has the following division
1.Forebrain-cerebrum,diencephalon
2.Midbrain -optic lobes
3.Hindbrain-cerebellum,medulla oblongata
cerebrum:it consists of two lobes called cerebral hemisphere .the surface of the cerebrum has many folds
they appear as elevation (gyri)and depression (sulci).sulci are very prominent and divide each hemispheres into fourlobes.(frontal,parietal,temporal,occipital)
function:seat of mental ability ,control thinking ,memory ,reasoning ,perception ,emotions and speech .
Diencephalon-it lies b/w cerebrum and mid brain .it is divided into thalamus and hypothalamus .
function :relay center for sensory impulses ,such pain ,temperature and light .
.center for certain emotions such as anger
.center for water balance ,blood pressure ,body temperature ,sleep and huger
.hypothalamus control the pituitary gland which function as the master gland.
Midbrain:this is a small thick stalked portion .thos connects forebrain with cerebellum and pons of hindbrain
function:it relays motor impulses from the cerebral cortex to the spinal cord and relays sensory impulse from the spinal cord to the thalamus ,reflexes for sight and hearing
HINDBRAIN:cerebellum -it is located below the cerebrum and above medulla oblongata.it consist of two large cerebellar hemisphere
function .maintains posture,equilibrium and muscle tone
.coordinate voluntary movements
Medulla oblongata-it extends from pons to spinal cord.
function-contains center for cardiac ,respiratory and vasomotor activities
.coordinates reflexes like swallowing ,coughing ,sneezing and vomiting .
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