Exam 3 April

Exam 3 April﷯ ﷯﷯ ﷯﷯﷯﷯﷯
 
Created Apr 20, 2010
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Side ASide B
All of the structures of the CNS originate from the
neural tube
Which of the following is not one of the three basic regions of the cerebral hemisphere
The blood- and oxygen-rich red zone   Each cerebral hemisphere has three basic regions:...
Choose the true statement regarding pyramidal cells
They allow us to control our skeletal muscles   The primary (somatic) motor cortex is...
What is the main role of the olfactory cortex
detection of odors
Spatial discrimination is the ability to identify the specific region of the body being stimulated
true
Which of the following is true of the multimodal association cortex
It allows us to tie information that we receive to previous experience and knowledge, and helps...
__________ is a division of labor in which each hemisphere has unique abilities not shared...
Lateralization
___________ is responsible for communication between cerebral areas and between the cerebral...
The cerebral white matter
Which of the following is not a part of the diencephalon
Perithalamus
Which of the following areas regulates body temperature, food intake, and sleep-wake cycles
Hypothalamus
Which of the following is not one of the major regions of the brain stem
Cerebellum   From superior to inferior, the brain stem regions are midbrain, pons, and...
Which of the following regions acts as an autonomic reflex center of the brain
Medulla oblongata   The small size of the medulla oblongata belies its crucial role...
_________ is a homeostatic brain imbalance that causes a temporary cessation of breathing during...
Sleep apnea
Which of the following meninges forms the loose, mid-layer brain covering
Arachnoid matter
Which of the following is a protective mechanism that helps maintain a stable environment for...
Blood-brain barrier    The blood-brain barrier is a protective mechanism that helps...
Which of the following is a progressive degenerative disease of the brain that ultimately results...
Alzheimer's disease   Alzheimer's disease is a progressive degenerative disease of...
Choose the true statement regarding second-order neurons
Second-order neuron cell bodies reside in the dorsal horn of the spinal cord   Second-order...
First Order neurons
cell bodies reside in ganglion, conduct impuses from the cutaneous receptors of the skin and...
Third order neurons
have cell bodies in the thalamus. they relay impulsesto the somatosensory cortex of the cerebrum. (NO...
Which of the following conditions results from viral destruction of ventral horn motor neurons
Poliomyelitis   Poliomyelitis results from destruction of ventral horn motor neurons...
Cerebral palsy may be caused by a temporary lack of oxygen during birth
True   In difficult deliveries, a temporary lack of oxygen may lead to cerebral palsy
Anencephaly is a result of incomplete formation of the vertebral arches, and can be caused...
False   Spina bifida is a result of incomplete formation of the vertebral arches, and...
In which of the following areas does sorting and editing of impulses take place
Thalamic nuclei   Within the thalamus a sorting-out and information editing process...
Which of the following is a function of the pons
Contains nuclei that relay information from the cerebrum to cerebellum   The pons is...
Which of the following areas is NOT involved in speech processing
Superior colliculi The superior colliculi function in visual reflexes
Which of the following areas of the brain is involved in maintaining the body's homeostasis
Hypothalamus   The hypothalamus is the main visceral control center...
Which of the following centers is NOT located in the hypothalamus
Center for central balance   The center for central balance is in the...
Which of the following coordinate head and eye movements when we visually follow a moving object
Superior colliculi   The superior colliculi are visual reflex centers...
Which of the following is a function of the basal ganglia
Starting, stopping, and monitoring arm swinging and gait   Starting,...
Which of the following is NOT one of the basal nuclei
Corpus callosum   The corpus callosum is the largest commissure in...
Which of the following is the autonomic control center
Hypothalamus   The hypothalamus is the control center for the autonomic nervous system
Which type of brain waves are seen when a person is concentrating on solving a problem
Beta waves   Beta waves are recorded when we are awake and alert
Which part of the brain is involved in thirst sensations
Hypothalamus   Osmoreceptors in the hypothalamus are activated when...
Which part of the brain produces dopamine
Substantia nigra   The substantia nigra gets its name from its high...
Which of the following statements concerning epilepsy is INCORRECT
It is associated with intellectual impairment.   Epilepsy is not associated...
Which of the following is the central layer of the meninges
Arachnoid mater   The arachnoid mater is the middle layer
The average weight of the adult brain is
3-3.5 lb   The average weight of the adult brain is 3-3.5 lb
The CNS can be differentiated in the developing embryo by week
four.   The CNS can be differentiated in the developing embryo by week...
Which of the following landmarks separates the cerebral hemispheres
The longitudinal fissure   The transverse cerebral fissure separates...
The cerebral cortex has all the following features, except that
it is composed of white mater
The visceral sensory area of the cerebral cortex is involved in the conscious perception of...
taste   The visceral sensory area of the cerebral cortex processes...
In which part of the cerebral cortex do sensations, emotions, and thoughts come together and...
The multimodal associate areas   It is now thought that the multimodal...
Which part of the cerebellum is involved in planning, rather that executing, movement
The lateral part of each hemisphere   The lateral part of each hemisphere...
All the following are attributed to the function of the amygdale, except
resolving mental conflict.   Resolving mental conflict is a function...
The sensory hallucinations experienced by epileptic patients are known as
the aura.   A petit mal is the old term used for an absence seizure
Which of the following statements about language is INCORRECT
All the associated areas on the right side of the cerebral cortex are involved in language
Working memory
is limited to seven or eight chunks of information.   Working memory,...
Which of the following neurotransmitters is thought to prime the prefrontal cortex and the...
Acetylcholine   Acetylcholine is thought to prime the prefrontal cortex...
If you are having a conversation with a person, excuse yourself for five minutes, and come...
anterograde amnesia.   A person with epilepsy would suffer from seizures,...
The main culprit in the damage caused by a cerebral vascular accident (CVA) is
glutamate.   Serotonin is not thought to play a role in the production...
All of the following features can be seen in the brain tissue of patients suffering from Alzheimer's...
increased levels of acetylcholine in the basal forebrain.   Tau is...
Deep brain stimulation via implanted electrodes has been used to treat some of the symptoms...
Parkinson's disease.   Deep brain stimulation via implanted electrodes...
Which of the following structures is not a part of the peripheral nervous system (PNS)
Brain   See page 485. The PNS includes all...
Mechanoreceptors
stretch
Thermoreceptors
temperature
Chemoreceptors
chemicals in solution
Photoreceptors
light energy
Nocioreceptors
pain
Proprioceptors are receptors that are classified by
their location.   See page 486. Sensory receptors...
Simple receptors found in epithelia and connective tissue tend to
uncapsulated dendritic endings
Which of the following has unencapsulated nerve endings
hair folicle receptors   is especially helpful. Hair follicle receptors, free nerve...
The final level of neural integration in the somatosensory system is the ______ level
perceptual
Fast adapting receptors are called
phasic receptors   Many sensory receptors exhibit adaptation. Adaptation is a change...
Most nerves are able to carry impulses both toward and away from the CNS
true
CNS nerve fibers are able to regenerate
false    Unlike peripheral nerve fibers, nerves of the CNS (brain and spinal cord)...
A nerve that carries autonomic signals away from the CNS is classified as
visceral efferant   Visceral refers to autonomic nervous system fibers. Afferent means...
Choose the false statement about cranial nerves
The cranial nerves are associated with the spinal cord.   See...
The first two pairs of cranial nerves attach to the
forebrain
All spinal nerves are mixed nerves.
true
If the phrenic nerve were severed, what would be the most immediate effect
breathing would stop   The phrenic nerve serves the diaphragm. If this nerve is irritated,...
The pinching motion (with opposed thumb and forefinger) is highly dependent upon impulses transmitted...
median nerve
Which of the following is false regarding the sciatic nerve
The sciatic nerve is a single nerve
The first level of motor control is the
segmental level
Which structure is involved in the projection level of motor control
primary motor cortex
In a reflex arc, the ___ transmits afferent impulses to the CNS
sensory neuron
The flexor reflex is initiated by painful stimuli
true


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