Question 1

The cerebrum is the largest portion of the brain in humans.

Accepted Answer

A) True 
 B)False

Question 2

Which description best fits the central nervous system (CNS)?

Accepted Answer

A)  consists of the brain and spinal cord, located in the midline of the body 
B)  consists of the brain and spinal cord, connecting the muscles and the brain 
C)  consists of the spinal cord, located in the midline of the body 
D)  consists of the brain and spinal cord, located on the edges of the body 
E)  transmits sensory impulses to the PNS and motor impulses to the brain 
A)  consists of the brain and spinal cord, located in the midline of the body 
B)  consists of the brain and spinal cord, connecting the muscles and the brain 
C)  consists of the spinal cord, located in the midline of the body 
D)  consists of the brain and spinal cord, located on the edges of the body 
E)  transmits sensory impulses to the PNS and motor impulses to the brain

Question 3

You spray an insect with common insecticide that destroys the ability of acetylcholinesterase to recycle acetylcholine. What effect will this have on the insect?

Accepted Answer

A)  The pesticide would kill the insects neurons. 
B)  The lack of recycled acetylcholine would slow the metabolism of the insect. 
C)  The insect would be unable to move due to a lack of nerve impulses. 
D)  The insect would run out of acetylcholine and become paralyzed. 
E)  The insect would lose control of body functions due to nerve impulses flowing continuously. 
A)  The pesticide would kill the insects neurons. 
B)  The lack of recycled acetylcholine would slow the metabolism of the insect. 
C)  The insect would be unable to move due to a lack of nerve impulses. 
D)  The insect would run out of acetylcholine and become paralyzed. 
E)  The insect would lose control of body functions due to nerve impulses flowing continuously.

Question 4

A nerve impulse is caused by

Accepted Answer

A)  the movement of a sodium ion all the way from dendrite to axon tip. 
B)  the movement of a potassium ion all the way from dendrite to axon tip. 
C)  the movement of sodium ions from a dendrite to an axon tip and the movement of potassium ions from the an axon tip to a dendrite. 
D)  a change in the difference in positive and negative ions on the outer and inner surfaces of the neuron membrane, a change that opens adjacent channels and propagates its flow. 
E)  a change in the difference in sugar molecules on the outer and inner surfaces of the neuron membrane that opens adjacent channels. 
A)  the movement of a sodium ion all the way from dendrite to axon tip. 
B)  the movement of a potassium ion all the way from dendrite to axon tip. 
C)  the movement of sodium ions from a dendrite to an axon tip and the movement of potassium ions from the an axon tip to a dendrite. 
D)  a change in the difference in positive and negative ions on the outer and inner surfaces of the neuron membrane, a change that opens adjacent channels and propagates its flow. 
E)  a change in the difference in sugar molecules on the outer and inner surfaces of the neuron membrane that opens adjacent channels.

Question 5

Which limbic structure allows us to respond to and display anger and also prompts the release of adrenaline into the bloodstream?

Accepted Answer

A)  amygdala 
B)  hippocampus 
C)  cerebellum 
D)  cerebrum 
E)  pons 
A)  amygdala 
B)  hippocampus 
C)  cerebellum 
D)  cerebrum 
E)  pons

Question 6

Saltatory conduction occurs when

Accepted Answer

A)  sodium levels are highest on the outside of the axonal membrane. 
B)  sodium gates open. 
C)  resting potential fails to be reset. 
D)  neurotransmitters cross the synaptic cleft. 
E)  an action potential jumps from node to node. 
A)  sodium levels are highest on the outside of the axonal membrane. 
B)  sodium gates open. 
C)  resting potential fails to be reset. 
D)  neurotransmitters cross the synaptic cleft. 
E)  an action potential jumps from node to node.

Question 7

Which of the following is correctly associated?

Accepted Answer

A)  midbrain-coordinates smooth and coordinated motions 
B)  cerebellum-reflex centers for visual, auditory, and tactile responses 
C)  cerebrum-reflex centers for visual, auditory, and tactile responses 
D)  pons-regulates breathing rate 
E)  thalamus-regulates heartbeat and blood pressure 
A)  midbrain-coordinates smooth and coordinated motions 
B)  cerebellum-reflex centers for visual, auditory, and tactile responses 
C)  cerebrum-reflex centers for visual, auditory, and tactile responses 
D)  pons-regulates breathing rate 
E)  thalamus-regulates heartbeat and blood pressure

Question 8

List and compare the three classes of neurons.

Accepted Answer

1. Sensory neuron: takes messages from t

Question 9

Which of the following produces myelin in the peripheral nervous system?

Accepted Answer

A)  sodium-potassium pumps 
B)  Schwann cells 
C)  myelin 
D)  nodes of Ranvier 
E)  oligodendrocytes 
A)  sodium-potassium pumps 
B)  Schwann cells 
C)  myelin 
D)  nodes of Ranvier 
E)  oligodendrocytes

Question 10

Which type of memory is associated with specific facts, persons, and events?

Accepted Answer

A)  episodic 
B)  skill 
C)  semantic 
D)  short term 
E)  All of the answer choices are associated with specific facts, persons, and events. 
A)  episodic 
B)  skill 
C)  semantic 
D)  short term 
E)  All of the answer choices are associated with specific facts, persons, and events.

Question 11

The brains of Alzheimer disease patients show no abnormalities postmortem.

Accepted Answer

A) True 
 B)False

Question 12

Which amino acid, in mice, was discovered to play a role in memory?

Accepted Answer

A)  glutamate 
B)  valine 
C)  serine 
D)  histidine 
E)  methionine 
A)  glutamate 
B)  valine 
C)  serine 
D)  histidine 
E)  methionine

Question 13

Which lobe of the cerebrum is responsible for vision?

Accepted Answer

A)  frontal 
B)  parietal 
C)  temporal 
D)  occipital 
E)  insular 
A)  frontal 
B)  parietal 
C)  temporal 
D)  occipital 
E)  insular

Question 14

The summing up of excitatory and inhibitory signals in a neuron is called

Accepted Answer

A)  repolarization. 
B)  inhibition. 
C)  synapse. 
D)  synaptic integration. 
E)  sympathetic response. 
A)  repolarization. 
B)  inhibition. 
C)  synapse. 
D)  synaptic integration. 
E)  sympathetic response.

Question 15

Which part of the brain is used to integrate incoming information and send it to the appropriate portion of the cerebrum?

Accepted Answer

A)  hypothalamus 
B)  cerebellum 
C)  thalamus 
D)  limbic system 
E)  basal nuclei 
A)  hypothalamus 
B)  cerebellum 
C)  thalamus 
D)  limbic system 
E)  basal nuclei

Question 16

One group of drugs retards heart rate, promotes digestion, contracts the eye pupil, etc. The other group has the opposite effect. These drugs are affecting the

Accepted Answer

A)  motor and sensory nerves. 
B)  cerebrum and cerebellum, respectively. 
C)  central and peripheral nervous systems. 
D)  neurostimulatory and neuroinhibitory synapses. 
E)  sympathetic and parasympathetic nervous systems. 
A)  motor and sensory nerves. 
B)  cerebrum and cerebellum, respectively. 
C)  central and peripheral nervous systems. 
D)  neurostimulatory and neuroinhibitory synapses. 
E)  sympathetic and parasympathetic nervous systems.

Question 17

Which is the correct arrangement of tissues from outermost to innermost?

Accepted Answer

A)  meninges → vertebrae → spinal cord → central canal 
B)  meninges → spinal cord → vertebrae → central canal 
C)  vertebrae → meninges → spinal cord → central canal 
D)  meninges → vertebrae → central canal → spinal cord 
E)  vertebrae → meninges → central canal → spinal cord 
A)  meninges → vertebrae → spinal cord → central canal 
B)  meninges → spinal cord → vertebrae → central canal 
C)  vertebrae → meninges → spinal cord → central canal 
D)  meninges → vertebrae → central canal → spinal cord 
E)  vertebrae → meninges → central canal → spinal cord

Question 18

The main function of the cerebrospinal fluid is

Accepted Answer

A)  to provide saltatory transmission. 
B)  to provide nutrients for the neurons. 
C)  defense of the nervous system against pathogens. 
D)  to produce gray matter. 
E)  to cushion and protect the central nervous system. 
A)  to provide saltatory transmission. 
B)  to provide nutrients for the neurons. 
C)  defense of the nervous system against pathogens. 
D)  to produce gray matter. 
E)  to cushion and protect the central nervous system.

Question 19

The brain and spinal cord are protected by membranes called the

Accepted Answer

A)  ventricles. 
B)  diencephalon. 
C)  ganglia. 
D)  amygdala. 
E)  meninges. 
A)  ventricles. 
B)  diencephalon. 
C)  ganglia. 
D)  amygdala. 
E)  meninges.

Question 20

Dendrites

Accepted Answer

A)  may be several feet in length. 
B)  are always myelinated. 
C)  are found only in the CNS. 
D)  are solely responsible for nervous conduction. 
E)  carry impulses toward a cell body. 
A)  may be several feet in length. 
B)  are always myelinated. 
C)  are found only in the CNS. 
D)  are solely responsible for nervous conduction. 
E)  carry impulses toward a cell body.

Exam 17: Nervous System

The cerebrum is the largest portion of the brain in humans.

Which description best fits the central nervous system (CNS)?

You spray an insect with common insecticide that destroys the ability of acetylcholinesterase to recycle acetylcholine. What effect will this have on the insect?

A nerve impulse is caused by

Which limbic structure allows us to respond to and display anger and also prompts the release of adrenaline into the bloodstream?

Saltatory conduction occurs when

Which of the following is correctly associated?

List and compare the three classes of neurons.

Which of the following produces myelin in the peripheral nervous system?

Which type of memory is associated with specific facts, persons, and events?

The brains of Alzheimer disease patients show no abnormalities postmortem.

Which amino acid, in mice, was discovered to play a role in memory?

Which lobe of the cerebrum is responsible for vision?

The summing up of excitatory and inhibitory signals in a neuron is called

Which part of the brain is used to integrate incoming information and send it to the appropriate portion of the cerebrum?

One group of drugs retards heart rate, promotes digestion, contracts the eye pupil, etc. The other group has the opposite effect. These drugs are affecting the

Which is the correct arrangement of tissues from outermost to innermost?

The main function of the cerebrospinal fluid is

The brain and spinal cord are protected by membranes called the

Dendrites

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