12 Cerebrum The cerebrum is the largest part of the human brain that fills most of the cranial cavity. Its large size is the result of a progressive (telencephalization) centralization…

20 Autonomic Nervous System The autonomic (self-controlling) nervous system is that part of the nervous system which regulates most of the involuntary activities of the body, such as the activities…

19 Reticular Formation and Limbic System Reticular Formation The reticular formation is defined as diffuse ill-defined mass of intermingled neurons and nerve fibres occupying the entire core of brainstem (Fig….

17 Somatic Motor and Sensory Pathways Somatic Motor Pathways The somatic motor pathways of the brain and spinal cord are divided into pyramidal and extrapyramidal systems. Both these systems control…

13 Basal Nuclei (Basal Ganglia) The basal ganglia are the large masses of grey matter situated within the white core of each cerebral hemisphere and form essential constituents of the…

16 Meninges And Cerebrospinal Fluid Meninges The brain and spinal cord are enclosed in three protective membranes called meninges. From without inwards these are: (a) dura mater, (b) arachnoid mater,…

6 Central Nervous System: an Overview The central nervous system (CNS) consists of the brain and spinal cord, which are located in the cranial cavity and vertebral canal respectively (Fig….

3 Peripheral Nerves and Ganglia The peripheral nerve lesions are common in clinical practice and can be caused by a wide variety of diseases like trauma, neoplasms, infection, metabolic diseases…

1 Development of the Nervous System A study of development of the nervous system helps to understand its complex organization and the occurrence of various congenital anomalies. The whole of…

2 Organization and Functions of the Nervous System Neuroanatomy is the study of the nervous system. The nervous system is the most complex, widely investigated and least understood system in…