Scribd
Upload
213 views2 pages

Organization of Nervous System: Anatomic Divisions

The nervous system can be divided anatomically into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS is comprised of the brain and spinal cord and contains neuronal cell bodies and processes. The PNS contains cranial and peripheral nerves and some neuronal cell bodies in ganglia as well as axonal processes and glial cells. The nervous system can also be divided functionally into sensory and motor divisions for input and output.

Uploaded by

Dr P N N Reddy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
213 views2 pages

Organization of Nervous System: Anatomic Divisions

The nervous system can be divided anatomically into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS is comprised of the brain and spinal cord and contains neuronal cell bodies and processes. The PNS contains cranial and peripheral nerves and some neuronal cell bodies in ganglia as well as axonal processes and glial cells. The nervous system can also be divided functionally into sensory and motor divisions for input and output.

Uploaded by

Dr P N N Reddy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 2

NEUROANATOMY 1

Introduction

 Human Body consists of abundant tissues and various ANATOMIC DIVISIONS


organs that are diverse in structure and function. Still 1. Central Component (Brain and Spinal Cord)
they function together, and in harmony, for the well-  Called as Central Nervous System (CNS)
being of the body  Made of groups of neuronal cell bodies (called
 Nervous system plays a pivotal role in this coordination nuclei), their dendritic and axonal processes and
 Neuroanatomy is the study of the structural aspects of many supporting cells (glia)
the nervous system 2. Peripheral Component (Cranial Nerves and
 Division of a study of the nervous system into Peripheral Nerves)
Neuroanatomy and Neurophysiology is only a matter of  Called as Peripheral Nervous System (PNS)
convenience  Composed primarily of axonal neural processes,
small amounts of neuronal cell bodies (called
ORGANIZATION OF NERVOUS SYSTEM ganglia) and supporting cells (Schwann cells or
neurolemmacytes)
 Nervous system can be described in two ways
1. Anatomically
2. Functionally

I Brihaspathi Academy I Subscriber’s Copy I


Help Line: +91 91644 76636
www.brihaspathiacademy.com
NEUROANATOMY 2
Introduction

Note: Remember that a collection of neural cell bodies has a ORIENTATION OF CENTRAL NERVOUS SYSTEM
different name depending on its anatomical location: ganglia in the
PNS and nuclei in the CNS. These nuclei are collections of cell
bodies and should not be confused with cellular nuclei that contain
chromosomes.

FUNCTIONAL DIVISIONS
1. Sensory (afferent, input)
2. Motor (efferent, output)

I Brihaspathi Academy I Subscriber’s Copy I


Help Line: +91 91644 76636
www.brihaspathiacademy.com

You might also like