, & 16/12
Classification of Neurons .
>
-
Classification of neurons can be based on # of processes
② length of axcons
③ functions of neurons
① Patterns
of dendrites .
Q Based number
of processes
on :
ci
Unipolar
-
Only one
process arises
from the soma.
Invertebrates and ANS vertebrates
·
Eg :
of .
(ii Pseudo unipolar :
-
One
process arises from soma and then
splits into central and peripheral anons
Eg Dorsal root
.
ganglion
-
(iii) Bipolar :
the
- 2 processes
arise
from .
soma
-
Ex :
Bipolar neurom
of retina
(iv) Multipolar :
More than 2 arise
from the soma
processes
-
-
Ex :
Spinal motor .
neurons
② Based on the
length of
the axon :
is
Golgi type 1 :
have short
they axons
-
- their dendrites end near the soma
inhibitory
-
Ex . Cortico neurons
(ii)
Golgi type 2 :
have
They long axons
-
-
Exil Cortical motor neurons
③ Based on their functions
:
Impulse from Receptors (offerent
Sensory
(i) >
-
to CNS
.
(ii) Motor > -
Impulse from CNS to
receptors
.
(efferent)
Classification of Neurons .
>
-
Classification of neurons can be based on # of processes
② length of axcons
③ functions of neurons
① Patterns
of dendrites .
Q Based number
of processes
on :
ci
Unipolar
-
Only one
process arises
from the soma.
Invertebrates and ANS vertebrates
·
Eg :
of .
(ii Pseudo unipolar :
-
One
process arises from soma and then
splits into central and peripheral anons
Eg Dorsal root
.
ganglion
-
(iii) Bipolar :
the
- 2 processes
arise
from .
soma
-
Ex :
Bipolar neurom
of retina
(iv) Multipolar :
More than 2 arise
from the soma
processes
-
-
Ex :
Spinal motor .
neurons
② Based on the
length of
the axon :
is
Golgi type 1 :
have short
they axons
-
- their dendrites end near the soma
inhibitory
-
Ex . Cortico neurons
(ii)
Golgi type 2 :
have
They long axons
-
-
Exil Cortical motor neurons
③ Based on their functions
:
Impulse from Receptors (offerent
Sensory
(i) >
-
to CNS
.
(ii) Motor > -
Impulse from CNS to
receptors
.
(efferent)
