The document summarizes the main components and functions of the nervous system. It discusses how the nervous system controls bodily activities by receiving sensory inputs, making decisions, and sending orders to respond. The nervous system is composed primarily of the brain, spinal cord, and nerves. The brain coordinates most bodily functions like thoughts, emotions, memory, temperature regulation, and breathing. The spinal cord transmits signals between the brain and the rest of the body, serving as a pathway. Nerves carry messages between different parts of the body, forming the body's electrical wiring.

1. THE NERVOUS SYSTEM
MARISOL LAZARO
BIOLOGY 120
PROF. RASHIDAH ABDULLAH
JULY, 2016

2. • The nervous system
controls all the
activities that happen
in our bodies. It
receives information
through sensory
inputs, makes
decisions and then
send orders to the
body to respond.
• The nervous system
is primary composed
of the brain, nerves
and spinal cord.

3. The brain is coordinates most activities in our bodies. Our
thoughts, emotions, judgements and memory happen in the
brain. The brain controls the temperature in our bodies, blood
pressure and breathing.
The brain is composed of:
• Brain steam
• Cerebellum
• Cerebral cortex
• Cerebral hemisphere
• Cerebrospinal fluid
• Cerebrum
• Diencephalon
• Frontal lobe
• Gyri
• Hypothalamus
• Medulla oblongata
• Midbrain
• Occipital lobe
• Parietal lobe
• Pons
• Sulci
• Temporal lobes
• Thalamus
• Ventricles

4. The spinal cord transmit signals between the brain and
the rest of the body, it serves as a pathway.
The spinal cord is composed of:
• Ascending tracts
• Central canal
• Descending tracts
• Spinal cavity
• Vertebral canal
• Vertebral column

5. The nervous system is a collection of nerves that carry messages
between different parts of the body . It is the body’s electrical
wiring.
The nervous system is composed of:
• Afferent neurons
• Autonomic nervous system
• Efferent neurons
• Ganglion
• Motor neurons
• Nerve root
• Sensory neurons
• Somatic nerves

6. Chapter 12 Suffixes
• -paresis Weakness
• -phasia speech
• -plegia paralysis
• -taxia muscle coordination
• -trophic pertaining to development

7. Chapter 12 Prefixes
• a- without
• an- without
• anti- against
• bi- two
• dys- abnormal,
difficult
• endo- within
• epi- above
• hemi- half
• hydro- water
• hyper- excessive
• intra- within
• mono- one
• para- abnormal, two like
parts of a pair
• poly- many
• quadri- four
• semi- partial
• sub- below
• un- not