testing testing IV Flashcards
Chapter 11-15
the large commissure that connects the right and left side of the brain is called the
corpus callosum
cerebrospinal l fluid is produced by ___ and it functions to ___.
choroid plexuses in the ventricles; protects the brain from blows to the skull
basal ganglia are located in the ___ and function to ___.
deep regions of the cerebral hemispheres; aid in control of motor activites
the part of the brain that functions to coordinate voluntary muscular movements is in the
cerebellum
the arbor vitae refer to ___.
cerebellar white matter
which brain sturcutre functions to control the autonomic nervous system and to regulate body temperatre?
hypothalamus
second-order neurons of ascending pathways that contribute to sensory perception terminate in the ___.
thalamus
mass of myelinated nerve fibers apperar
white
which of the following is not one of the three vital reflex centers of the medulla oblongata?
digestive center
the cerebrum is separated from the cerebellum by the
transverse fissure
the ___ includes the thalamus, hypothalamus, and epithalamus
diencephalon
a myelinated nerve fiber is characterized by being ___, whereas an unmyelinated nerve fiber is characterized by being ___.
white, composing white matter of brain and spinal cord; gray, composing gray matter of brain and spinal cord
which of the following is not a function of the hypothalmaus?
control of postural reflexes
the subarachnoid space whithin the meninges contains
cerebrospinal fluid
surrounds the central canal of the spinal column and holds cerebral spinal fluid
gray commissure
gray matter of the spinal cord is mostly composed of
interneurons
most cerebrospinal fluid is secreted from the choroid plexuses in the
lateral ventricles
preparing the body for “fight or flight” response is the role of the
sympathetic division
sympathetic division stimulation causes ___
increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure
the somatic nervous system consists of nerve fibers that connect the CNS to the ___, whereas the autonomic nervous system consists of fibers that connect the ___.
skin and skeletal muscles; CNS to the visceral organs
a sensation is ___, and projection of a sensation is the ___.
a feeling that results from sensory stimulation; brain causing it to seem to come from the receptors being stimulated
if you enter a room and smell a strong odor but the odor soon seems to fade away, you have experienced
sensory adaptation
the area of skin supplied by sensory nerve fibers from a particular dorsal root is called a
dermatome
which of the following are generally adrenergic fibers?
sympathetic postganglionic fibers
when a spinal nerve passes through the intervertebral foramen, it is
associated with the vertebrae above
what is it called when pain seems to be coming from another part of the body rather than the part of the body sending the sensation?
referred pain
over 90% of all parasympathetic fibers are derived from cranial nerve ___.
X (vagus)
which of the following are paired correctly?
all of these are correct (chemoreceptors- chemical changes, pain receptors- damage to tissue, thermoreceptors- change in temperature)
which of the following does NOT describe the ANS?
a system of motor neurons that innervates all muscle cells
mixed cranial nerves containing both motor and sensory fibers include all EXCEPT which of the following?
olfactory
control of temperature, endocrine activity, and thirst are functions associated with the ___.
hypothalamus
which of the following is shared by all reflexes
a reflex arc
which of the following is mismatched?
parasympathetic postganglionic fibers; release NE
general senses are generally distributed in what type of pattern throughout the body?
widely distributed throughout the body
pain receptors
are generally stimulated by factors that can cause tissue damage
which of the folowing lists the part of a reflex arc in correct sequence?
receptor, sensory neuron, interneuron, motor neuron, effector
reflexes help to control
all of these are correct (heart rate, blood pressure, digestive activity)
a patient is suffering from the inability to distinguish various types of odors. this patient may have damage to which of the following?
olfactory nerve (I)
which of the following appears to exert the most direct influence over autonomic functions?
hypothalamus