1. ANATOMY & PHYSIOLOGY
WEEKLY
Volume 1, Issue 2 10.29.12
Written by– Agron
Dura mater: made of strong white fi- monitors for changes in internal Functions: The spinal cord per-
brous tissue, serves as the outer layer of environment. forms two general functions.
the meninges and also as the inner pe- Briefly, it provides conduction
riosteum of the cranial bones. Where is it found : cerebrospinal
routes to and from the brain and
fluid is found in the subarachnoid
serves as the integrator, or reflex
Arachnoid membrane, a delicate, coweb space around the brain and spi-
center, for all spinal reflexes (2)
like-layer, lies between the dura matter nal cord within the cavities and
and the pia matter or innermost layer of canals of the brain and spinal
the meninges cord. Which are called ventricles
Pia matter: innermost layor of the men- Spinal cord: the spinal cord lies
inges. The transparent pia matter ad- in the spinal cavity, extending
heres to the outer surface of the brain from the foramen magnum to the
and spinal cord and contains blood ves- lower border of the first lumbar
sels vertebra, a distance of about 45
cm in the average body. The
Cerebrospinal fluid: In addition to its bony spinal cord does not completely
and membranous coverings, nature has fill the spinal cavity.
further protected the brain and spinal
cord against injury by providing a cushion
of fluid both around the organs and within
them, it also a reservoir of circulating
fluid that, along with blood, the brain © (12)
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Inside this Issue
Argon’s Part CNS 1,2,3 Page 1
Ashley B’s Part PNS 5,6,7,8 Page 2
Jasmine’s Part CNS 4,5,6 Page 3
Kamiera’s Part CNS 7,8,9 Page 4
Colton’s Part PNS 1,2,3,4 Page 5

2. Page 2 ANATOMY & PHYSIOLOGY WEEKLY
Written By—Ashley B.
purpose of the sympathetic nervous
Inside the peripheral autonomic nervous sys-
system is to prepare the body for
nervous system there are tem functions independ-
physical activity. The purpose of the
two subdivisions, the so- ently and without con-
parasympathic nervous system is to
matic nervous system scious effort. Afferent
active vegetative functions such as
and the autonomic nerv- nerves are the sensory
digestion, defecation, and urination.
ous system. The auto- nerves that travel away
(1)
nomic nervous system from the central nervous
includes fibers that con- system and efferent
nect the CNS to viscera, nerves are the motor
such as the heart, stom- nerves that travel toward
ach and glands. Within the central nervous sys-
the automatic nervous tem. As a whole the Auto-
system it is divided into nomic Nervous System
another two parts the sends impulses from the
sympathetic nervous sys- central nervous system to
tem and the parasympa- smooth muscle, cardiac
thic nervous system. The muscle, and glands. The
Autonomic
Nervous System
“The
autonomic
© (12)
function
functions
independe
ntly” Efferent nerves Afferent nerves travel
travel toward the away from the CNS
CNS
© (12)

3. VOLUME 1, ISSUE 2 Page 3
Written by-Jasmine
© (12)
“To catch
the reader's
attention,
place an
interesting
sentence or
quote from
the story

4. VOLUME 1, ISSUE 2 Page 4
Written by– Kamiera

5. Page 4
Written by– Colton