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Exam 9: Nervous System

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Question 61

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The most abundant cation within cells is __________; the most abundant cation outside of cells is __________.

A) oxygen; carbon
B) hydrogen; oxygen
C) sodium; potassium
D) potassium; sodium

E) All of the above
F) C) and D)

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Question 62

Multiple Choice

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When ten or more pre-synaptic neurons conduct impulses to five or fewer post-synaptic neurons, the conduction pattern is said to be __________.

A) divergent
B) emergent
C) hyperpolarizing
D) convergent

E) B) and C)
F) B) and D)

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Question 63

Multiple Choice

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Which of the following contains unmyelinated axons and neuronal cell bodies?

The peripheral nervous system includes sensory and motor divisions.

What bundles of axons carry impulses from the central nervous system to effectors?

A nerve impulse consists of a wave of __________ potentials moving along the axon of a neuron.

Afferent neurons bring sensory information into the central nervous system.

A neuron may release more than one type of neurotransmitter.

Sensory and motor function, memory, reasoning and other higher cognitive functions are performed by what part of the brain?

Most nerves of the body are mixed nerves.

When you raise your hand to ask a question in class, what structures carry the impulse from your brain to your deltoid muscle?

Which of the following is NOT a type of neuroglia?

If fibers in an ascending tract of the spinal cord are cut, the affected person will have a loss of motor functions below the injury.

Sensory impulses from receptors of the feet reach the brain by which structure?

In most individuals, writing skills would be impaired if there was damage to which area of the brain?

Nerves of the peripheral nervous system form complex networks called __________.

What converts environmental information into impulses that are then conducted to the central nervous system?

What is the simplest nerve pathway in the body called?

When ten or more neurons conduct impulses to five or fewer same post-synaptic neurons, the conduction pattern is said to be __________.