describe the structure of brain
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The human brain is divisible into three parts:
(a) Fore brain (Prosencephalon):
(i) Olfactory lobes : Each lobe consists of two parts, an anterior olfactory bulb and a posterior olfactory tract. They are fully covered by the cerebral hemispheres.
(ii) Cerebrum: The cerebrum is the largest part of the human brain. It consists of left and right hemispheres connected by a large bundle of myelinated fibres, the corpus collasum and other smaller fibre bundles. The outer portion of cerebrum is called the cerebral cortex that makes up the grey matter of the cerebrum. There are three general kinds of cortex: sensory, motor and associative. Beneath the grey matter, the large concentration of medullated nerve fibres gives this tissue an opaque white appearance, collecting called white matter. Each cerebral hemisphere is divided into four lobes : frontal, parietal temporal and occipital lobe.
(iii) Diencephalon: Its main parts are epithalamus, thalamus and hypothalamus. Epithalamus is thin and not formed of nervous tissue. Hypothalamus is relatively small but it is highly vascular.
(a) Fore brain (Prosencephalon):
(i) Olfactory lobes : Each lobe consists of two parts, an anterior olfactory bulb and a posterior olfactory tract. They are fully covered by the cerebral hemispheres.
(ii) Cerebrum: The cerebrum is the largest part of the human brain. It consists of left and right hemispheres connected by a large bundle of myelinated fibres, the corpus collasum and other smaller fibre bundles. The outer portion of cerebrum is called the cerebral cortex that makes up the grey matter of the cerebrum. There are three general kinds of cortex: sensory, motor and associative. Beneath the grey matter, the large concentration of medullated nerve fibres gives this tissue an opaque white appearance, collecting called white matter. Each cerebral hemisphere is divided into four lobes : frontal, parietal temporal and occipital lobe.
(iii) Diencephalon: Its main parts are epithalamus, thalamus and hypothalamus. Epithalamus is thin and not formed of nervous tissue. Hypothalamus is relatively small but it is highly vascular.
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Heyaa !!!
✴The brain is made of three main parts: the forebrain, midbrain, and hindbrain.
✴ The forebrain consists of the cerebrum, thalamus, and hypothalamus (part of the limbic system).
✴ The midbrain consists of the tectum and tegmentum.
✴The hindbrain is made of the cerebellum, pons and medulla.
✴Often the midbrain, pons, and medulla are referred to together as the brainstem.
hope it helps you ....and see the attachment also..✌✌
#APS☺☺
✴The brain is made of three main parts: the forebrain, midbrain, and hindbrain.
✴ The forebrain consists of the cerebrum, thalamus, and hypothalamus (part of the limbic system).
✴ The midbrain consists of the tectum and tegmentum.
✴The hindbrain is made of the cerebellum, pons and medulla.
✴Often the midbrain, pons, and medulla are referred to together as the brainstem.
hope it helps you ....and see the attachment also..✌✌
#APS☺☺
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