The document summarizes key components and functions of the nervous system. It discusses the brain, including the cerebrum, cerebellum, and brain stem. It notes the brain integrates sensory information and directs motor responses. It also discusses the spinal cord and its role in carrying messages between the brain and body. Finally, it discusses nerves, including sensory nerves, motor nerves, and interneurons, and their role in transmitting information throughout the body to control and coordinate its parts.

3. ConceptMapping
1.Introduction- Functions and Composition of the Nervous System.
2. The Brain – 1. Functions of Brain 2. Parts of Brain 3. The
Cerebrum 4. The Cerebellum 5. Brain Stem
3. The Spinal Cord- Role of Spinal Cord
4. Nerves- 1. Types of Nerves 2. Sensory Nerves 3. Motor
Nerves 4. Interneurons
5. Reflex Actions- 1. What is the Reflex Actions? 2. Reflex
Actions in our daily life.

6. The Brain
Brain is the mass of nerve tissue in the
anterior end of an organism. The brain
integrates sensory information and directs
motor responses in higher vertebrates it is
also the Centre of learning.

9. The cerebellum
The cerebellum is the area at
the back and bottom of the brain,
behind the brainstem. The
cerebellum has several functions
relating to movement and
coordination, including: Maintaining
balance: The cerebellum has special
sensors that detect shifts in balance
and movement.

10. The brainstem
 The brainstem(brain stem) is the distal part of
the brain that is made up of the midbrain, pons,
and medulla oblongata. Each of the three
components has its own unique structure and
function. Together, they help to
regulate breathing, heart rate, blood pressure,
and several other important functions. All of
these brainstem functions are enabled because
of its unique anatomy; since the brainstem
houses cranial nerve nuclei and is a passageway
for many important neural pathways.

12. The spinal cord
The spinal cord is a long, fragile
tubelike structure that begins at
the end of the brain stem and
continues down almost to the
bottom of the spine. The spinal
cord consists of nerves that carry
incoming and outgoing messages
between the brain and the rest of

13. Nerves
A nerve is a cable-like structure within the body
designed to conduct nerve impulses that relay
information from one part of the body to another.
A typical nerve is made up of a bundle of fibres
which are wrapped around layers of tissue and fat,
and they stretch throughout the body. These nerves
transmit information along the axons to the
respective organs. These are the basic elements that
constitute a nerve.
Nerves are a part of the nervous system. They are
primarily involved in control and the coordination of
all the parts of the body.