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Brain Structures and Functions Reading
brain structures
brain functions
brain gross anatomy
Course
Human Anatomy And Physiology I (PSIO 201)
179 Documents
Students shared 179 documents in this course
University
The University of Arizona
Academic year: 2023/2024
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Brain Structures & Functions rd .
- Ib : Grey & white Matter
grey matter - stat of nevrosomas + dendrites
- synapses = cortex over arebellum & cerebrum& nuclei surrounded by while matter white matter deep to the cortical grey matter in most of the brain -opposite in the spinal cord white matter composed of tracts
- 39 : The Medulla oblongata embryonic hindbrain - myerencephalon & metencephalon
####### myelencephalon becomes I adult structure - medulla oblongata
-most caudal part of the brainstem -immediately superior to foramen magnum
####### all newe fibers connecting brain =o spinal cord pass through medulla
####### ascending fibers : sensory 1st : Irid , 3rd-order fibers)
####### descending fibers : motor
- 3b : The POUS menterphalon - pous & arebellum -2 . S Cm Long
pons- handles unconscious processes (sleep-wake, breathing (
####### cranial newes v-VIII begin lend in the pous
-Auctions :
* sensor loves (hearing , equilibrium , touch)
- facial sensations
- Motor roles leye movement , facial expressions , chewing swallow , urination , etc. )
- reticular formation in the pous contains nuclei for sleep , respiration , & posture
- 31 : The midbrain mesencephalon - midbrain
midbrain : short legment of the brainstan , connecting the hindbrain forebrain
- 3d : The Reticular Formation the RF is a loose web of grey matter ... rus vertically
####### through all levels of the brainstem & upper spinal cord
key functions : * somatic motor control * sleep & consciousness * cardiovascular control * habituation # pain modulation
-
Brain Structures & Functions cont.
14. 32 : The lerebellum
largest part of the hindbrain , and largest of entire brain
left & Right hemispheres connected by the vermis
all input to the cerebellum goes to the cortex & all of its output comes from the deep nuclei
cerebellum is highly active when a person explores objects w/ their fingertips
functions :
* center for
* monitoring muscle contraction
aids in motor coordination
14. 49 : The Diencephalon
embryonic diencephalon - thalamus , hypothalamus , epithalamus
the thalamus
-each side of the brain has one
-a point of synaptic relay of ~all siquals passing from lower INS-cerebrum
-serves in motor control , memory , & emotional systems
the hypothalamus
forms floor & walls of 3rd ventricle
-major control center of endocrine & autonomic nervous systems
* hormone secretion * food & H2D intake
* autonomic effects * sleep & circadian rhythm
* the moregulation * memory
# emotional behavior & fexual response
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Brain Structures and Functions Reading
Course: Human Anatomy And Physiology I (PSIO 201)
179 Documents
Students shared 179 documents in this course
University: The University of Arizona
Was this document helpful?
Brain
Structures
&
Functions
rd
.
14
.
Ib
:
Grey
&
white
Matter
grey
matter
-
stat
of
nevrosomas
+
dendrites
+
synapses
=
cortex
over
arebellum
&
cerebrum&
nuclei
surrounded
by
while
matter
white
matter
deep
to
the
cortical
grey
matter
in
most
of
the
brain
-opposite
in
the
spinal
cord
white
matter
composed
of
tracts
14
.
39
:
The
Medulla
oblongata
embryonic
hindbrain
-
myerencephalon
&
metencephalon
myelencephalon
becomes
I
adult
structure
-
medulla
oblongata
-most
caudal
part
of
the
brainstem
-immediately
superior
to
foramen
magnum
all
newe
fibers
connecting
brain
=o
spinal
cord
pass
through
medulla
ascending
fibers
:
sensory
1st
:
Irid
,
3rd-order
fibers)
descending
fibers
:
motor
14
.
3b
:
The
POUS
menterphalon
-
pous
&
arebellum
-2
.
S
Cm
Long
pons-
handles
unconscious
processes
(sleep-wake
,
breathing
(
cranial
newes
v-VIII
begin
lend
in
the
pous
-Auctions
:
*
sensor
loves
(hearing
,
equilibrium
,
touch)
*
facial
sensations
*
Motor
roles
leye
movement
,
facial
expressions
,
chewing
swallow
,
urination
,
etc
.
)
-
reticular
formation
in
the
pous
contains
nuclei
for
sleep
,
respiration
,
&
posture
14
.
31
:
The
midbrain
mesencephalon
-
midbrain
midbrain
:
short
legment
of
the
brainstan
,
connecting
the
hindbrain
forebrain
14
.
3d
:
The
Reticular
Formation
the
RF
is
a
loose
web
of
grey
matter
...
rus
vertically
through
all
levels
of
the
brainstem
&
upper
spinal
cord
key
functions
:
*
somatic
motor
control
*
sleep
&
consciousness
*
cardiovascular
control
*
habituation
#
pain
modulation
-
