Question

Describe the structure of human brain

Answer 1

The most important organ of human body is human brain. It is also the central nervous system of human brain.

1. The cerebrum - We solve problems, remember something, we think, this all activities is performed in this part.

2. The cerebellum – It controls the coordination and balance.

3. The brain stem - the posterior most part of the brain that extends backward to join the spinal cord.

Answer 2

The adult human brain weighs on average about 1.2–1.4 kg (2.6–3.1 lb) which is about 2% of the total body weight,with a volume of around 1260 cm3 in men and 1130 cm3 in women, although there is substantial individual variation.[5] Neurological differences between the sexes have not been shown to correlate in any simple way with IQ or other measures of cognitive performance.The cerebrum, consisting of the cerebral hemispheres, forms the largest part of the brain and is situated above the other brain structures. The outer region of the hemispheres, the cerebral cortex, is grey matter, consisting of cortical layers of neurons. Each hemisphere is divided into four main lobes.The brainstem, resembling a stalk, attaches to and leaves the cerebrum at the start of the midbrain area. The brainstem includes the midbrain, the pons, and the medulla oblongata. Behind the brainstem is the cerebellum (Latin: little brain).The cerebrum, brainstem, cerebellum, and spinal cord are covered by three membranes called meninges. The membranes are the tough dura mater; the middle arachnoid mater and the more delicate inner pia mater. Between the arachnoid mater and the pia mater is the subarachnoid space, which contains the cerebrospinal fluid. In the cerebral cortex, close to the basement membrane of the pia mater, is a limiti membrane called the glia limitans; this is the outermost membrane of the cortex.The living and is very soft, having a gel-like consistency similar to soft tofu. The cortical layers of neurons constitute much of the brain's grey matter, while the deeper subcortical regions of myelinated axons, make up the white matter.Structural and functional areas of the human brain.A diagram showing various structures within the human brain.Human brain bisected in the sagittal plane, showing the white matter of the corpus callosum

A diagram of the functional areas of the human brain .Functional areas of the human brain. Dashed areas shown are commonly left hemisphere dominant

Cerebrum