Guide : Neuroanatomy
Anatomy It
Pheripheral Nervous System
· The phenipheral is divided into two main parts : Cranial nerves and spinal harves . These and bundles of herve fibeles
that connect the CNS to other parts of the body ,
and conduct the information processed in the Cus to the
body .
>
-
CRAnial NERVES
· There at 12 pains of cetrial herves rone in Each hemisphe
RE of the butin) and they pass through the foraming in
the Skull
I offactory
grossoparin
( I) 7 facial
2 optic (π) 8 Vestibulococalar
3 oculomotor III 3
Y tracheal ) 20
vagus (E)
trigeminat
·
5 r) 11 Accessory
S abducent #] 12 hypoglossal
-
Spiral NERVES
· There are 31 paias of Spiral nerves : E Cervical , na thoracia ,
5 lumbar ,
5 Sacral and 1 coclygeal .
These nerves pass through the invertebral for
Remin in the vertebral column and than join together in plexus
- Each spiral herre has two boots :
1 anterior root
·
Efferent motor fibbers Skeletal
Muscle /descending pathways)
Signals
· are fired through the anterior
gety
horn
2 posterion root
·
offerent/sensory fibbers - cas
carry impueses
About sensations like pain , temperature and vibration)
↳ posterior
Each spiral nerrt
immediately a has cell bodies located in the root ganglion
divides into
2 ramus : that where the 1st synapse happens
· Interior Htmus /larger) :
goes to muscles and skin over the anttedaten body wall ,
And on the limbs ,
and join together at ro o t
the of the limbs in hervt plexusts
· posterior nauus (shorter) : passes posteriorly around the vertebral column and gots to muscles and skin in the back
↳ Each of these retai have both
sesory and motor fibers
-
I 3
>
-
Ganglia &
I Sensory Ganglia : the sensory pathways rascending involve 3 (o more neurons) , so
Each spiral
the posterior root of herut and the Catrial Nerves V , VII , VIII
,
IX and X =
Where the 1st synapse happens
2 Autonomic Ganglia a chain near the spiral card /paravertebral
: And gaglion
Sympathetic chains) with efferent merre fibbers of the Autonomic nervous &
system
-
, Cells of the PNS
· Each herve has various fascicles Each one with a
surrounding laytr , the pan-
mode neurium and individual nerve fibers inside .
surrounding Each rent fibbee is the Endorfurium and in some
·
newts
there are also schwank cells that form the myflin sheat
· The Outer
layer of the hole hervt
is the Epinfrium
· The wavy pattern of the nervous tissue
is to protect them
from damage when is stretched due to muscle
movement on contraction
CRANIAL NERVES
· The Clarial nerves are 12 paired nerves that arist from the batin and travel
and fissurfs in the
through fortwitt cranium , innervating various structures
mainly those in the head and neck
.
· Catrial nerves originate from the butin , having various functions like motor ,
function And other
sensory on autonomic functions .
Some nerves have one ,
Nerves can hart mixed functions
.
· Crtrial
The Nerves I
rolfatory) And It /opticl aren't realy meruts , but
betin projections that belong to the offatory and optic tracts
T
- on Some · These neares enter and exit at different parts of the butin :
↳ The Enter the
E
on On III Cerebrum
say
↳ brainster :
The other Enter Exit at different parts of the
Mary (D) an or
money .
2 CN / midbatin / is the
only
cn from dorsal view)
3 /- portomedullary junction
e
but .
2 CNE -
pons . Cn
.
4 CN EX E + meddula
my , ,
brother(p) to The CN #I comes from the spirat cond
says · The cratrial herles
carry the information . It can count Efferent
from fibtes (butin
# green big (D) to organs) that originate in the buxin-motor , or from offerent fibers /Organs
Vegetable
brins (p) to brain) that ends in the brain -
sensory .
Mater
XII Motor Fibers Fibers
-
M mone · ·
Sensory
↳ I, I and sometic motor
The CN * &
somatory sensory
↳ la
information, stricted muscle under control temperature and
Carry sensory voluntary pain ,
touch ...
the I, and somatic branchial motor & visceral
an , , -
sensory
# ↳ muscles that
↳ carotid
Carry motor information
only in Cr
, coeuntary body/sinus , phaninx , larynx
,
And the
Cr , ,
and Car t from branchial anches thoracic and abdominal viscent
cany both visceral /PSNS)
I & motor Special
↓
Sensory
↳ The ↳ ↳
In
, , and cranial outflow of the PSNS and Smell , Sight taste ,
hearing and balance
= also have partsymp . Fibbers innervate smooth muscle, glands and healt
Anatomy It
Pheripheral Nervous System
· The phenipheral is divided into two main parts : Cranial nerves and spinal harves . These and bundles of herve fibeles
that connect the CNS to other parts of the body ,
and conduct the information processed in the Cus to the
body .
>
-
CRAnial NERVES
· There at 12 pains of cetrial herves rone in Each hemisphe
RE of the butin) and they pass through the foraming in
the Skull
I offactory
grossoparin
( I) 7 facial
2 optic (π) 8 Vestibulococalar
3 oculomotor III 3
Y tracheal ) 20
vagus (E)
trigeminat
·
5 r) 11 Accessory
S abducent #] 12 hypoglossal
-
Spiral NERVES
· There are 31 paias of Spiral nerves : E Cervical , na thoracia ,
5 lumbar ,
5 Sacral and 1 coclygeal .
These nerves pass through the invertebral for
Remin in the vertebral column and than join together in plexus
- Each spiral herre has two boots :
1 anterior root
·
Efferent motor fibbers Skeletal
Muscle /descending pathways)
Signals
· are fired through the anterior
gety
horn
2 posterion root
·
offerent/sensory fibbers - cas
carry impueses
About sensations like pain , temperature and vibration)
↳ posterior
Each spiral nerrt
immediately a has cell bodies located in the root ganglion
divides into
2 ramus : that where the 1st synapse happens
· Interior Htmus /larger) :
goes to muscles and skin over the anttedaten body wall ,
And on the limbs ,
and join together at ro o t
the of the limbs in hervt plexusts
· posterior nauus (shorter) : passes posteriorly around the vertebral column and gots to muscles and skin in the back
↳ Each of these retai have both
sesory and motor fibers
-
I 3
>
-
Ganglia &
I Sensory Ganglia : the sensory pathways rascending involve 3 (o more neurons) , so
Each spiral
the posterior root of herut and the Catrial Nerves V , VII , VIII
,
IX and X =
Where the 1st synapse happens
2 Autonomic Ganglia a chain near the spiral card /paravertebral
: And gaglion
Sympathetic chains) with efferent merre fibbers of the Autonomic nervous &
system
-
, Cells of the PNS
· Each herve has various fascicles Each one with a
surrounding laytr , the pan-
mode neurium and individual nerve fibers inside .
surrounding Each rent fibbee is the Endorfurium and in some
·
newts
there are also schwank cells that form the myflin sheat
· The Outer
layer of the hole hervt
is the Epinfrium
· The wavy pattern of the nervous tissue
is to protect them
from damage when is stretched due to muscle
movement on contraction
CRANIAL NERVES
· The Clarial nerves are 12 paired nerves that arist from the batin and travel
and fissurfs in the
through fortwitt cranium , innervating various structures
mainly those in the head and neck
.
· Catrial nerves originate from the butin , having various functions like motor ,
function And other
sensory on autonomic functions .
Some nerves have one ,
Nerves can hart mixed functions
.
· Crtrial
The Nerves I
rolfatory) And It /opticl aren't realy meruts , but
betin projections that belong to the offatory and optic tracts
T
- on Some · These neares enter and exit at different parts of the butin :
↳ The Enter the
E
on On III Cerebrum
say
↳ brainster :
The other Enter Exit at different parts of the
Mary (D) an or
money .
2 CN / midbatin / is the
only
cn from dorsal view)
3 /- portomedullary junction
e
but .
2 CNE -
pons . Cn
.
4 CN EX E + meddula
my , ,
brother(p) to The CN #I comes from the spirat cond
says · The cratrial herles
carry the information . It can count Efferent
from fibtes (butin
# green big (D) to organs) that originate in the buxin-motor , or from offerent fibers /Organs
Vegetable
brins (p) to brain) that ends in the brain -
sensory .
Mater
XII Motor Fibers Fibers
-
M mone · ·
Sensory
↳ I, I and sometic motor
The CN * &
somatory sensory
↳ la
information, stricted muscle under control temperature and
Carry sensory voluntary pain ,
touch ...
the I, and somatic branchial motor & visceral
an , , -
sensory
# ↳ muscles that
↳ carotid
Carry motor information
only in Cr
, coeuntary body/sinus , phaninx , larynx
,
And the
Cr , ,
and Car t from branchial anches thoracic and abdominal viscent
cany both visceral /PSNS)
I & motor Special
↓
Sensory
↳ The ↳ ↳
In
, , and cranial outflow of the PSNS and Smell , Sight taste ,
hearing and balance
= also have partsymp . Fibbers innervate smooth muscle, glands and healt
