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The nervous system. Neurones C N S P N S Brain Spinal cord. C N S( Central nervous system). The central nervous system (C N S), consisting of the brain and the spinal cord. Functional component of the nervous system.
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The nervous system • Neurones • C N S • P N S • Brain • Spinal cord
C N S( Central nervous system) The central nervous system (C N S), consisting of the brain and the spinal cord
Neurones have the characteristics of irritability and conductivity; Conductivity means the ability to transmit an impuls… Neurons
Neurones have the ability to transmit an impulse by the help of some parts of neuronesby the bonding between dendrites and terminals...
Than many neurones bounded to each other by the help of dendrites and terminals.. Synapse
?... What is brain…?
Brain • Lobe:- • Frontal lobe • Parietal lobe • Occipital lobe • Temporal lobe
Now next part of C N S is spinal cord. This 3rd part is known as spinal cord.
Spinal cord It is approximately 45 cm long in adult human..
Cervical • Sacral Nerves 1-8 Vertebrae 1-7 C1 C2 C3 C4 C5 C6 C7 Nerves 1-5 Vertebrae 1-5 • Thoracic S1 S2 S3 S4 S5 Nerves 1-12 Vertebrae 1-12 • Lumbar T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 Nerves 1-5 Vertebrae 1-5 L1 L2 L3 L4 L5
Cervical nerves Thoracic nerves Lumbar nerves Sacral nerves
Covering of spinal cord… Sensory nerve & Motor nerve
This is a best ex. Of reflex arc… Sensory nerve provide by the C7- C8 spinal nerves to heat
Any Question… ?...
K R N Thankyou
