The peripheral nervous system (PNS) is the part of the nervous system which includes the nerves and ganglia that are outside of the brain and spinal cord. It consists of 3 types of nerves: spinal nerves, cranial nerves and visceral nerves which are the connecting wires between CNS and sensory organs. The system is further […]
Central Nervous System The central nervous system is also called the cerebrospinal nervous system, where ‘cerebro’ refers to the brain and ‘spinal’ refers to the spinal cord. The brain and the spinal cord together weave a wide network of nerves that work day and night and keep the body functioning. The brain is said to
Brain-stem Brain-stem is a stem-like part of the brain that connects the cerebrum and the spinal cord. It usually includes the medulla oblongata, pons, and mid-brain. A pair of ten cranial nerves comes from the brain-stem. The parts of the brain-stem work together to control the movements in the body. Mid-brain The mid-brain is also
Brain-stem, Mid-brain, Hind-brain, Pons, Medulla Oblongata and Cerebellum Read More »
The cerebral hemisphere has several folds present on its surface. These folds are called cortex. These folds can be divided into four sections, called the lobes: the frontal lobe, parietal lobe, occipital lobe and temporal lobe. These lobes are the control centre of various functions. The frontal lobe controls thought and speech, the temporal lobe
Thalamus The thalamus is a large dual lobe structural part of the brain which performs endocrine function. It is located between the cerebral cortex and mid-brain or at the top of the brain-stem. It performs an important function in our body. It receives the sensory impulses and relays them to the sensory centre of the
Cerebral cortex is an important region of the cerebrum; it is also known as the grey matter of the brain. Grey matter is the region where nerve cells concentrate. These nerve cells are arranged as irregular folds. These irregular folds increase the surface area of the cortex. These cells of the cortex are connected with
The fore-brain or the cerebrum is the largest part of the brain and it makes about 85% of the brain. The folds in the fore-brain help it to fit into the skull. The main parts of the fore-brain are: cerebral hemispheres and basal ganglia. Cerebrum is the base of memory, intelligence and mind. It is
The brain is the central control system of the body, also called the master organ of the body. It lies in the skull (brain case) and protected by a bony box called cranium. It has three main parts: the fore-brain, mid-brain and hind-brain. The human brain works like a master computer. The brain processes the
Sensory neurons, also known as afferent neurons, carry signals from the receptor in the body towards the central nervous system. Dendrites of the sensory neurons collect the signals from the receptors in the skin, eye, nose and other sensory organs, and carry them towards the central nervous system. The stimuli are transferred to the cell
D’Artagnan was a poor but noble young man from Gascony. He left his home and went to Paris in search of a better future. Before he left his home, his father had given him an introduction letter for his friend Monsieur de Treville, who was the captain of the King’s musketeers, a horse and fifteen
