BIOS 252 - EXAM 2
__________ ___________ motor neurons use norepinepherine or acetylcholine. -
ANSSympathetic postganglionic
______________ _____________ motor neurons always use acetylcholine. -
ANSParasympathetic postganglionic
_______________ _______________ axons are typically long and terminate in ganglia on
or nearby target organs - ANSParasympathetic preganglionic
A disease that damages the cells of the anterior gray horn will...?
restrict autonomic control Cause paralysis or weakness in skeletal muscles
Interrupt proprioception
Interrupt temperature recognition - ANSCause paralysis or weakness in the skeletal
muscles
The is a reflex that causes the antagonist muscle to be activated in turn by the? muscle
stretch
crossed-extensor
flexor
tendon - ANScrossed-extensor
Aaron had been feeling dizzy and unable to maintain his balance. His doctor indicated to
him he has a viral infection in his inner ear. Based on Aaron's symptoms, which of the
following nerves is most likely affected by the virus? Nerve that controls the eyes Auditory
Nerve
Cochlear branch of the Vestibulocochlear nerve
Vestibulocochlear Nerve - ANSVestibulocochlear Nerve
After suffering a blow to the back of the head, Phil loses his vision. The blow probably
caused damage to the?
limbic system
cerebellar nuclei occipital lobe
prefrontal cortex
postcentral gyrus - ANSOccipital Lobe
After suffering a stroke, Mark finds that he cannot move his right arm. This would suggest
that the stroke damage is in the area of the ________ lobe.
left frontal
right temporal
occipital
right frontal
left temporal - ANSLeft Frontal
All sympathetic and parasympathetic preganglionic neurons release acetylcholine from their
axon terminals. (True or False?) - ANSTrue
Except for the fourth ventricle, all of the brain's ventricles are paired. (Is it true or not?) -
ANSFalse An image of a cross section of the spinal cord would show anterior (or ventral)
horns. What is in that region?
Cell bodies of motor neurons
White matter
, Spinal nerves
Ascending tracts- ANSCell bodies of motor neurons
An unlearned and involuntary but predictable motor response to a stimulus that is rapid and
does not involve any processing by the brain:
Learned Reflex
Cranial Reflex
Spinal Reflex
Autonomic Reflex- ANSSpinal Reflex
Damage to the posterior root of the thoracic spinal nerve would result in loss of motor
function to the intercostal space muscles controlled by that nerve. (True or False?) -
ANSFalse
Describe the pathway of Cerebral Spinal Fluid - ANSCSF begins in the choroid plexuses
and curculates into the lateral ventricles, then the third and fourth ventricles. It is then
reabsorbed through the saggital sinus by the arachnoid villi.
Despite being a cranial nerve, the ____________ conveys parasympathetic information to
the body's structures that are responsible for digestion, defecation, and diuresis.
Trigeminal nerve
Phrenic Nerve
Vagus Nerve
Hypoglossal Nerve - ANSVagus Nerve
Explain the steps of an Arc Reflex - ANS1. The receptor/signal is received
2. The Sensory neuron sends the signal to the CNS
3. The integrating system receives the signal and the interneuron carries information to
CNS
4. The motor neurons are then signaled
5. The Effector (where the action occurs) Fred's girlfriend has a habit of rolling her eyes
each time he says a joke. Fred jokes that her optic nerves are overworked. Is this a true or
false statement? - ANSFalse
How many pairs of nerves are each? (Cervical, Thoracic, Lumbar, Sacral, Coccygeal) -
ANSCervical- 8
Thoracic- 12
Lumbar- 5
Sacral- 5
One occygeal In the autonomic nervous system, what is considered "Flight or Fight"? -
ANSSympathetic nervous system
In the autonomic nervous system, what is considered "Rest and Digest"? -
ANSParasympathetic nervous system
Is a Dorsal Root afferent or efferent? - ANSafferent (sensory)
Is a Ventral Root afferent or efferent? - ANSefferent (motor)
Is the postcentral gyrus motor or sensory? - ANSsensory
Is the precentral gyrus motor or sensory? - ANSmotor
Joe begins to experience mood swings and disturbed thirst and hunger. Imaging studies
indicate that a brain tumor is the likely cause of these disorders. In what part of the brain is
the tumor most likely located?
hypothalamus
prefrontal cortex
basal nuclei
postcentral gyrus
__________ ___________ motor neurons use norepinepherine or acetylcholine. -
ANSSympathetic postganglionic
______________ _____________ motor neurons always use acetylcholine. -
ANSParasympathetic postganglionic
_______________ _______________ axons are typically long and terminate in ganglia on
or nearby target organs - ANSParasympathetic preganglionic
A disease that damages the cells of the anterior gray horn will...?
restrict autonomic control Cause paralysis or weakness in skeletal muscles
Interrupt proprioception
Interrupt temperature recognition - ANSCause paralysis or weakness in the skeletal
muscles
The is a reflex that causes the antagonist muscle to be activated in turn by the? muscle
stretch
crossed-extensor
flexor
tendon - ANScrossed-extensor
Aaron had been feeling dizzy and unable to maintain his balance. His doctor indicated to
him he has a viral infection in his inner ear. Based on Aaron's symptoms, which of the
following nerves is most likely affected by the virus? Nerve that controls the eyes Auditory
Nerve
Cochlear branch of the Vestibulocochlear nerve
Vestibulocochlear Nerve - ANSVestibulocochlear Nerve
After suffering a blow to the back of the head, Phil loses his vision. The blow probably
caused damage to the?
limbic system
cerebellar nuclei occipital lobe
prefrontal cortex
postcentral gyrus - ANSOccipital Lobe
After suffering a stroke, Mark finds that he cannot move his right arm. This would suggest
that the stroke damage is in the area of the ________ lobe.
left frontal
right temporal
occipital
right frontal
left temporal - ANSLeft Frontal
All sympathetic and parasympathetic preganglionic neurons release acetylcholine from their
axon terminals. (True or False?) - ANSTrue
Except for the fourth ventricle, all of the brain's ventricles are paired. (Is it true or not?) -
ANSFalse An image of a cross section of the spinal cord would show anterior (or ventral)
horns. What is in that region?
Cell bodies of motor neurons
White matter
, Spinal nerves
Ascending tracts- ANSCell bodies of motor neurons
An unlearned and involuntary but predictable motor response to a stimulus that is rapid and
does not involve any processing by the brain:
Learned Reflex
Cranial Reflex
Spinal Reflex
Autonomic Reflex- ANSSpinal Reflex
Damage to the posterior root of the thoracic spinal nerve would result in loss of motor
function to the intercostal space muscles controlled by that nerve. (True or False?) -
ANSFalse
Describe the pathway of Cerebral Spinal Fluid - ANSCSF begins in the choroid plexuses
and curculates into the lateral ventricles, then the third and fourth ventricles. It is then
reabsorbed through the saggital sinus by the arachnoid villi.
Despite being a cranial nerve, the ____________ conveys parasympathetic information to
the body's structures that are responsible for digestion, defecation, and diuresis.
Trigeminal nerve
Phrenic Nerve
Vagus Nerve
Hypoglossal Nerve - ANSVagus Nerve
Explain the steps of an Arc Reflex - ANS1. The receptor/signal is received
2. The Sensory neuron sends the signal to the CNS
3. The integrating system receives the signal and the interneuron carries information to
CNS
4. The motor neurons are then signaled
5. The Effector (where the action occurs) Fred's girlfriend has a habit of rolling her eyes
each time he says a joke. Fred jokes that her optic nerves are overworked. Is this a true or
false statement? - ANSFalse
How many pairs of nerves are each? (Cervical, Thoracic, Lumbar, Sacral, Coccygeal) -
ANSCervical- 8
Thoracic- 12
Lumbar- 5
Sacral- 5
One occygeal In the autonomic nervous system, what is considered "Flight or Fight"? -
ANSSympathetic nervous system
In the autonomic nervous system, what is considered "Rest and Digest"? -
ANSParasympathetic nervous system
Is a Dorsal Root afferent or efferent? - ANSafferent (sensory)
Is a Ventral Root afferent or efferent? - ANSefferent (motor)
Is the postcentral gyrus motor or sensory? - ANSsensory
Is the precentral gyrus motor or sensory? - ANSmotor
Joe begins to experience mood swings and disturbed thirst and hunger. Imaging studies
indicate that a brain tumor is the likely cause of these disorders. In what part of the brain is
the tumor most likely located?
hypothalamus
prefrontal cortex
basal nuclei
postcentral gyrus
