Test
Exam 4 - Chapter 13
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Preguntas del test (87)
1The blood-brain barrier is effective against the passage of:
- Anutrients such as glucose
- Bmetabolic waste
- Cwater
- Dalcohol
2The sympathetic and parasympathetic nervous systems are subdivisions of the:
- Aautonomic nervous system
- Bvoluntary nervous system
- Csomatic nervous system
- Dcentral nervous system
- Eperipheral nervous system
3An action potential:
- Ainvolves the outflux of negative ions to depolarize the membrane
- Binvolves the influx of negative ions to depolarize the membrane
- Cinvolves the outflux of positive ions to depolarize the membrane
- DIs due to the exchange of ions across the membrane
4Cell bodies of the sensory neurons of the spinal nerves are located in:
- Athe dorsal root ganglia of the spinal cord
- Bthe thalamus
- Cthe hypothalamus
- Dthe ventral root ganglia of the spinal cord
- Esympathetic ganglia
5The effects of the sympathetic nervous system are essentially opposite of the:
- Amotor division
- Bparasympathetic nervous system
- Csensory division
- Dcentral nervous system
- Eautonomic nervous system
6 Which one of the following best describes the waxy-appearing material called myelin:
- Aa mass of white lipid material that surrounds the dendrites of a neuron
- Ban outer membrane on a neuroglial cell
- Ca mass of white lipid material that insulates the axon of a neuron
- Da lipid-protein (lipoprotein) cell membrane on the outside of axons
7Which of these cells are not a type of neuroglia found in the CNS
- ASchwann cells
- Boligodendrocytes
- Cependymal cells
- Dastrocytes
8Bipolar neurons are commonly:
- Amotor neurons
- Bbetween the dendrite and axon
- Cmore abundant in adults than in children
- Dcalled neuroglia
9 The substance that is released at axonal endings to propagate a nervous impulse is called
- Aan ion
- Ban action potential
- C) the sodium-potassium pump
- Da neurotransmitter
- Enerve glue
10Impulse conduction is fastest in neurons that are:
- Asensory
- Bcerebral
- Cmotor
- Dmyelinated
11 The peripheral nervous system consists of
- Athe spinal and cranial nerves
- Bthe brain and spinal cord
- Cspinal nerves only
- Dcranial nerves only
12The neuron processes that normally receive incoming stimuli are called
- ASchwann cells
- Bdendrites
- Cneurolemmas
- Daxons
13Preparing the body for the ʺfight-or-flightʺ response during threatening situations is the role of the:
- Asympathetic nervous system
- Bsomatic nervous system
- Ccerebrum
- Dafferent nervous system
14The term central nervous system refers to the:
- Aspinal cord and spinal nerves
- Bautonomic and peripheral nervous systems
- Cbrain, spinal cord, and cranial nerves
- Dbrain and cranial nerves
- Ebrain and spinal cord
15Which one of these effectors is NOT directly controlled by the autonomic nervous system:
- Asmooth muscle
- Bcardiac muscle
- Cmost glands
- Dskeletal muscle
- Eabdominal organs
16Sympathetic nervous system stimulation causes:
- A increased blood glucose, decreased GI peristalsis, and increased heart rate and blood
pressure - Bdecreased blood glucose, increased GI peristalsis, and decreased heart rate and blood
pressure - Cincreased blood glucose, increased GI peristalsis, and decreased heart rate and blood
pressure - Ddecreased blood glucose, decreased GI peristalsis, and decreased heart rate and blood
pressure
- A increased blood glucose, decreased GI peristalsis, and increased heart rate and blood
17Which of the following effects is characteristic of the parasympathetic nervous system:
- Aincreases metabolic rate
- Bstimulates sweat glands to produce perspiration
- Cdecreases heart rate
- Ddecreases activity of the digestive system
18The gray matter of the spinal cord:
- Asurrounds the white matter of the spinal cord
- Bsurrounds the central canal
- Ccontains myelinated fiber tracts
- Dalways carries sensory information to the brain
19Collections of nerve cell bodies inside the CNS are called:
- Anuclei
- Bganglia
- Cnerves
- Dtracts
20The Schwann cell forms a myelin sheath around the:
- Anucleus
- Bcell body
- Caxon
- Dnodes of Ranvier
- Edendrites
21White matters refers to myelinated fibers in the:
- ASNS
- BPNS
- CANS
- DCNS
22Cells found in the CNS that cling to neurons and anchor them to blood vessels are called
- Aastrocytes
- BOligodendrocytes
- CMicroglia
- DEpendymal cells
23Myelinated regions of the CNS are referred to as __________ matter.
- Awhite
- Bgrey
- Cblue
- Dpurple
24That part of the Peripheral Nervous System (PNS) that is voluntary and conducts impulses from the Central Nervous System (CNS) to the skeletal muscles is the __________ nervous system
- Asomatic
- Bautonomic nervous system
- Cvoluntary nervous system
- Dperipheral nervous system
25The cell bodies of the __________ neurons are always located within the CNS.
- Amotor
- BBipolar
- Cpolar
- Dsensory
26__________ cells form the myelin sheaths around nerve fibers in the PNS.
- ASchwann
- BSatellite
- CEpendymal
27Neurons with two processes, an axon and a dendrite, are structurally classified as __________ neurons.
- ABipolar
- BPseudounipolar
- CMultipolar
- DAnaxonic
28The __________ division of the ANS activates when we are frightened or stressed.
- Asympathetic
- Bparasympathetic
- Csensory
- Dautonomic
29Characteristics of the Nervous System (choose all that apply)
- AControls and adjust the activity of the body
- BProvides swift but brief responses
- CTells the brain to get the hand out of hot water
30The _______ nervous system is associated with the brain and the spinal cord
- ACentral Nervous System
- BPeripheral Nervous System
31The _______ nervous system that is associated with anything outside the brain - tissue outside the CNS
- APeripheral Nervous System
- BCentral Nervous System
32Responsible for integrating, processing, and coordinating sensory input and coordinating motor output
- ACentral Nervous System
- BPeripheral Nervous System
33Provides sensory information to the CNS and carries motor commands away from the CNS
- APeripheral Nervous System
- BCentral Nervous System
34The Peripheral Nervous System is broken down into two subdivisions, which brings sensory information TO the CNS
- AAfferent division
- BEfferent division
35Which of the following components of the nervous system controls skeletal muscle contractions?
- Aparasympathetic nervous system
- Bautonomic nervous system
- Csympathetic nervous system
- Dsomatic nervous system
36______ monitors smooth muscles, cardiac muscle, and other internal organs
- Asomatic nervous system
- Bautonomic nervous system
- Cparasympathetic nervous system
- DVisceral nervous system
37Cause pupil constriction, decrease heart rate, and tense the urinary bladder (for example).
"rest and digest"- AParasympathetic nerves
- BSympathetic nerves
- CNeuroglia nerves
38Cause pupil dilation, increase heart rate, and relax urinary bladder (for example).
"Fight or flight"- ASympathetic nerves
- BParasympathetic nerves
39Nerve cells that are responsible for the transfer and processing of information in the nervous system
- ANeurons
- BNeuroglia
- CSatellite cells
- DSchwann cells
40If the neurons are considered the Royal kings, ________ are the servants
- ANeuroglia
- BAxons
- Cneurotransmitter
- Danaxons
41StimulatED by environmental changes or the activities of other cells
- ADendrites
- BCell body
- CAxon
- DTerminal boutons
42Conducts nerve impulse (action potential) toward synaptic terminals
- Aaxons
- BCell body
- CDendrites
- DTerminal boutons
43Affect another neuron or effector organ (muscle or gland)
- ATerminal boutons
- Baxons
- CDendrites
44Functions/characteristics of Neuroglia
- AProvide the framework for the neural tissue
- BMaintain the intercellular environment
- CAct as phagocytes
- DHave the ability to reproduce
45Surround all axons in Peripheral Neurons; responsible for myelination of peripheral axons; participate in repair process after injury
- ASchwann cells
- BSatellite cells
- COligodendrocytes
- DAstrocytes
46Surround neuron cell bodies in ganglia; regulate O2, CO2, nutrient, and neurotransmitter levels around neurons in ganglia
- ASatellite cells
- BSchwann cells
- COligodendrocytes
- DAstrocytes
47Which of the following is NOT a function of astrocytes?
- Amaintain the blood–brain barrier
- Bguide neuron development
- Cperform repairs in damaged neural tissue
- Dproduce myelin, which wraps axons and functions as an insulator
48Myelinate CNS axons; provide structural framework
- AAstrocytes
- BMicroglia
- CEpendymal
- DOligodendrocytes
49Oligodendrocytes, Ependymal cells, Microglia and Astrocytes are part of the ______ nervous system
- ACentral
- BPeripheral
50Remove cell debris, wastes, and pathogens by phagocytosi
- AMicroglia
- BAstrocytes
- CEpendymal cells
- DOligodendrocytes
51Line ventricles (brain) and central canal (spinal cord); assist in producing, circulating, and monitoring cerebrospinal fluid
- AEpendymal cells
- BOligodendrocytes
- CAstrocytes
- DMicroglia
52Neuron classification based on the number of processes extending from the cell body
- AStructural classification
- BFunctional classification
- CProcedural classification
53Structural Classification of Neurons:
Has many processes but cannot differentiate between axons and dendrites
Found only in the CNS- AAnaxonic
- BBipolar
- CPseudounipolar
- DMultipolar
54Structural Classification of Neurons:
The cell body is between the dendrite and axon
Axons are not myelinated- ABipolar
- BAnaxonic
- CPseudounipolar
- DMultipolar
55Structural Classification of Neurons:
The cell body is off to one side of the axon- AAnaxonic
- BBipolar
- CPseudounipolar
- DMultipolar
56Structural Classification of Neurons:
Typically has a single axon and multiple dendrites
Most common type in the CNS- AMultipolar
- BPseudounipolar
- CBipolar
- DAnaxonic
57Functional Classification of Neurons:
Sends information from the PNS to the CNS
These are:- AMotor
- BSensory
- CInterneuron
58Functional Classification of Neurons:
Sends information from the CNS to the periphery
- ASensory
- BMotor
- CInterneuron
59Functional Classification of Neurons:
Located entirely in the CNS
Situated between the motor and sensory neurons
Analyze sensory input and coordinate motor outputs- AMotor
- BInterneurons
- CSensory
60There are three major types of receptors associated with sensory neurons:
Provide information about the external environment such as:
Touch, temperature, pressure, sight, smell, and hearing- AExteroceptors
- BProprioceptors
- CInteroceptors
61There are three major types of receptors associated with sensory neurons:
Monitor position and movement of the body- AProprioceptors
- BInteroceptors
- CExteroceptors
62There are three major types of receptors associated with sensory neurons:
Monitor internal organ activity- AInteroceptors
- BProprioceptors
- CExteroceptors
63A NERVE IS A CLUSTER OF NEURONS
- AVerdadero
- BFalso
64In the sequence of nerve regeneration after injury, Axonal injury occurring is event number ______
- A1
- B2
- C3
- D4
65In the sequence of nerve regeneration after injury, Schwann cells form cord, grow into cut, and unite stumps. Macrophages engulf degenerating axon and myelin. This is event number ______
- A1
- B2
- C3
- D4
66In the sequence of nerve regeneration after injury, when the axon sends "buds" into the network of Schwann cells and then starts growing along cord.is event number ______
- A3
- B1
- C2
- D4
67In the sequence of nerve regeneration after injury, the axon grows into the distal stump and is enfolded by Schwann cells. is event number ______
- A1
- B2
- C3
- D4
68The “speed” of the nerve impulse depends on:
- APresence of a myelin sheath
- BLack of a myelin sheath
- CMyelinated axons with a large diameter
- DUnmyelinated axons with a small diameter
- Enumber of dendrites
- Fnumber of neurotransmitters
- Gnumber of axons
69Myelinated axons with a large diameter can move at speeds
- AUp to 140 m/sec
- BLess than 1 m/sec
70A synapse is the junction between Axodendritic, Axosomic, and Axoaxonic
The axon of one neuron and the dendrite of another neuron is _______- AAxodendritic
- BAxosomic
- CAxoaxonic
71A synapse is the junction between Axodendritic, Axosomic, and Axoaxonic
The axon of one neuron and the soma of another neuron is _______- AAxodendritic
- BAxosomic
- CAxoaxonic
72A synapse is the junction between Axodendritic, Axosomic, and Axoaxonic
The axon of one neuron and the axon of another neuron is _______- AAxodendritic
- BAxosomic
- CAxoaxonic
73At a synaptic terminal, a nerve impulse triggers events at a synapse that transfers information across the synapse.
This transfer process is accomplished by Vesicular synapses and Nonvesicular synapses.
Chemical synapses is ______, while flow of ions is ______.- AVesicular; Nonvesicular
- BNonvesicular, Vesicular
74Neurons can be organized into smaller organized groups called neuronal pools
The neuronal pools are identified by their neural circuitry. . . The spread of information from one neuron to several neurons, which permits broad distribution of a specific input, is called:- ADivergence
- BConvergence
- CSerial processing
- DParallel processing
- EReverberation
75Neurons can be organized into smaller organized groups called neuronal pools
The neuronal pools are identified by their neural circuitry. .Information going from several neurons to a single neuron
Movements of the diaphragm muscle are involuntary, but yet at times we can move the diaphragm muscle voluntarily. This is what kind of neural circuitry?- ADivergence
- BConvergence
- CSerial Processing
- DParallel Processing
76Neurons can be organized into smaller organized groups called neuronal pools
The neuronal pools are identified by their neural circuitry. .Information going from one neuron to the next in a sequence
Information going to one part of the brain, then to another part, and then to another part, etc.- ASerial Processing
- BParallel Processing
- CConvergence
- DDivergence
77Neurons can be organized into smaller organized groups called neuronal pools
The neuronal pools are identified by their neural circuitry. .
Collateral axons extend back toward the origin of the impulse to cause an enhancement or a continuation of the impulse
“go back, we need more"- AReverberation
- BParallel Processing
- CSerial Processing
- DConvergence
- EDivergence
78Organization in the CNS:
______ is on the surface of the brain- AGray matter
- BWhite matter
- CNuclei
79Organization in the CNS:
Bundles of CNS axons that form ascending and descending columns (think fat)- AWhite matter
- BGray matter
- CNuclei
80Organization in the PNS:
Bundles of axons in the PNS is what kind of matter?- AWhite matter
- BGray matter
81An afferent sensory neuron carries stimuli from the central nervous system to the effector.
- ATrue
- BFalse
82
An afferent sensory neuron carries stimuli from the PNS to the CNS- ATrue
- BFalse
83Myelination of nerve fibers in the central nervous system is the job of the oligodendrocyte
- ATrue
- BFalse
84
Sensory neurons carry information away from the CNS.- ATrue
- BFalse
85Most body organs are innervated by only the sympathetic division of the nervous system.
- ATrue
- BFalse
86Cell bodies of sensory neurons are always located in ganglia lying outside the central nervous system.
- ATrue
- BFalse
87Neurons lack centrosomes - they cannot reproduce
- ATrue
- BFalse
Información
- Descripción
- Test sobre Exam 4 - Chapter 13, creado por Levi Chodorow el 12/04/2017.
- Autor
- Levi Chodorow
- Idioma
- English
- Visitas
- 12
- Historial
- Creado el 12 abr 2017 · actualizado el 17 abr 2017
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