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Which one of the following statements about aging is most accurate?


A) The brain reaches its maximum weight around the seventh decade of life.
B) Synaptic connections are too fixed to permit a great deal of learning after the age of 35.
C) Despite some neuronal loss, an unlimited number of neural pathways are available and ready to be developed; therefore, additional learning can occur throughout life.
D) Learning throughout the adult and aging years is supported primarily by glial proliferation.
E) Increased efficiency of the sympathetic nervous system enhances the ability to learn.

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The part of the neuron that typically conducts nerve impulses away from the cell body is the ________.


A) dendrite
B) cell body
C) synaptic cleft
D) axon

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The vital centers for the control of visceral activities such as heart rate, breathing, blood pressure, swallowing, and vomiting are located in the ________.


A) pons
B) medulla oblongata
C) midbrain
D) cerebrum
E) hypothalamus

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Match the following: -Increases metabolic rate


A) Parasympathetic nervous system
B) Sympathetic nervous system

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What are the major positive ions situated outside the neuron when it is polarized?


A) calcium ions
B) sodium ions
C) potassium ions
D) magnesium ions

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Depolarization of neurons results from the entry of sodium ions into the cell.

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What part of the neuron releases neurotransmitters from vesicles?


A) axon terminals
B) dendrites
C) axon hillock
D) Schwann cells
E) myelin sheath

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   Using Figure 7.1, identify the following: -The axon is indicated by ________. A)  Label B B)  Label F C)  Label H D)  Label I E)  Label A Using Figure 7.1, identify the following: -The axon is indicated by ________.


A) Label B
B) Label F
C) Label H
D) Label I
E) Label A

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   Using Figure 7.1, identify the following: -The gaps between Schwann cells are indicated by ________. A)  Label D B)  Label H C)  Label B D)  Label F E)  Label A Using Figure 7.1, identify the following: -The gaps between Schwann cells are indicated by ________.


A) Label D
B) Label H
C) Label B
D) Label F
E) Label A

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Which branch of the autonomic nervous system (ANS) mobilizes the body during extreme situations, such as rage or fear?


A) sympathetic division
B) parasympathetic division
C) somatic division
D) sensory division

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Match the following: -Decreases digestive system activities


A) Parasympathetic nervous system
B) Sympathetic nervous system

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What pair of cranial nerves extends to the thoracic and abdominal cavities?


A) glossopharyngeal
B) oculomotor
C) vestibulocochlear
D) vagus

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The large fiber tract that allows communication between the two cerebral hemispheres is called the ________.


A) corpus callosum
B) fornix
C) pons
D) thalamus

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What statement best describes the resting state of a neuron?


A) Neurons are polarized with more sodium ions outside the cell and more potassium ions inside the cell.
B) Neurons are propagating the action potential.
C) Neurons are depolarizing and generating an action potential.
D) Neurons are restoring the ionic conditions utilizing the sodium-potassium pump.
E) Neurons are repolarizing as potassium ions diffuse out of the cell.

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The midbrain, pons, and medulla oblongata are housed in the ________.


A) diencephalon
B) hypothalamus
C) brain stem
D) pineal gland
E) cerebellum

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Match the following: -Motor homunculus and sensory homunculus


A) cerebellum
B) cerebrum
C) diencephalon
D) brain stem

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What congenital disorder results when the vertebrae fail to form completely around the spinal cord, typically in the lumbosacral region?


A) cystic fibrosis
B) anencephaly
C) hydrocephaly
D) cerebral palsy
E) spina bifida

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Match the following: -Includes the pineal gland and choroid plexus of the third ventricle


A) hypothalamus
B) pituitary gland
C) epithalamus
D) medulla oblongata
E) thalamus
F) midbrain

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The primary motor area allows us to consciously move our skeletal muscles.

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Cranial nerve X is the vestibulocochlear nerve, its fibers carry sensations of hearing and equilibrium to the brain.

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