EXAM 2
cerebrospinal fluid is found in the _________________ space and
within the _____________ of the brain and _____________
______________ of the spinal cord.
subarachnoid , ventricles , Central canal
the spinal cord begins at the _________ ___________ of the skull
and ends at the _________ ________________, around L1 or L2
vertebrae
foramen magnum, conus medullaris
Dorsal root, ventral root
each spinal nerve is formed by the ___________ __________, which
contains sensory fibers, and the ___________ _________ which
contains motor fibers.
The bulge in the spinal cord that gives off nerves to the lower limbs
is called the _________ _________
Lumbar Enlargement
The white matter of the spinal cord is divided into anterior, lateral,
and posterior ________________
columns
sensory nerves travel up the spinal cord in _____________ tracts
ascending
Motor impulses travel done the spinal cord ____________ tracts
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, HONDROS BIO 253 LATEST
EXAM 2
descending
In addition to being a pathway for impulses to and from the brain,
the spinal cord is a center for
reflexes
the inferior part of the brain is called the ____________ and has
three parts , the ___________ __________ at the bottom, the
_______ in the middle and the __________ at the top.
brainstem, medulla oblongata, Pons, Midbrain
Some important brain centers for vital functions are found in the
_______________, including
the cardiac center to regulate heart rate, two respiratory centers to
control breathing,
and the vasomotor center to control blood pressure and distribution
of blood.
medulla oblongata,
The pneumotaxic center, which helps regulate breathing, is found in
the ___________.
pons
reflex centers for some cranial nerves are found in the
midbrain
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, HONDROS BIO 253 LATEST
EXAM 2
the second largest part of the brain is the ____________ and this are
helps make coordinated movements possible
cerebellum
The white matter in the cerebellum is called______ because of its
branch like structures
arbor vitae
the Dicephalon contains the ___________ which is a relay center for
sensory pathways, and the ____________ which regulates the AND
activity in the endocrine system.
thalamus, hypothalamus
the largest part of the brain is called the _________, which is divided
into two hemispheres, separated by the _____________
____________.
cerebrum, longitudinal fissure
each half of the cerebrum is divided into ______ lobes. (number)
5
somatic motor function, or voluntary control of skeletal muscles, is
regulated by the regions of the _____________ lobe
frontal
The primary auditory area that gives us a sense of hearing is
___________ lobe
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, HONDROS BIO 253 LATEST
EXAM 2
temporal
somatic sensory function, like the sense of touch and pain, is
controlled by the __________ lobe
Parietal
The occipital lobe contains the _____________, which is responsible
for the sense of sight.
visual cortex
A part of the brain associated with emotion, called the
_____________________, is mostly made up of
parts of the cerebrum.
Limbic system
In the PNS there are ________ cranial nerves, and ______ pairs of
spinal nerves. NUMBER#
12, 31
A complex network formed from branches of spinal nerves is called
a _____________.
Plexus
The cervical plexus form the _________ nerve, which innervates the
diaphragm.
phrenic nerve
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