Special Senses Notes BIO 240

spinal cord ,
PNS ,
senses




- -




- -




cervical
Arachnoid
g- enlarge ,f¥
EÉ dural
,
,µggµ space
↓"B
fat,
,




.in#*-iiefYgThmeh%F7 mebn%rage"Ñenᵗ * legs



*←



¥¥É÷¥←%ʳ
hE9ndeaI1
medullaris
↳ sc end




lsvbarachnoi
spaced , case
Ii←yavda
i


)
¥
-




¥7;a_%%

, GRAY MATTER many -
dendrites + cell body
mas




minerde hangingpostion
↓
1
spinal
merve
posterior
root
ranglion
root sensory
~



-Antirior
M OTOR


central or missure
a




#davior
Endord r i fo r m i
of

sensore
-
somatic I 87x
visceral
↓ bOOY
-Lateral
-
Horn
↳Autonomic motor nervous



t
*
↑ S

I
Autonomicres
Enterior root
Ferent
#
Anterior Horn
-




ImerrousexitrepI
Asomatic motor neurons

arons of all motor

, WHITE MATTER?myelinated axons tracts
•
Funiculi -
shared origin destination, ,
+ FM

All tracts Anterior + Lateral contain motor tracts
sensory
• = •




Posterior Funiculus
/


Funiculus
morio While commissure
Funiculus
RAMI

Branch from spinal nerves
•




to innervate body regions

spinal Nerve lfmixed)
-




posterior ramus
↳
Muscles + back skin




Thorn
Anterior ramus
:*
m;raʳʰ
↳ into branches
splits
↳ Innervates anterior + lateral trunk
,

⑥ Communications upper + lower limbs




✓
↳ some weave
together /Nerve plexus)
•
Autonomic nervous
split into named nerves
•
carry sympathetic +
parasympathetic signals
sympathetic
Trunk Ganglion ganglia :
interconnected in trunk parallel to Vert
.