Question 1

Which neuropeptide neurotransmitter is released from fibers transmitting sensory information about pain and temperature?

Accepted Answer

A)  substance P 
B)  opioids 
C)  neuropeptide Y 
D)  endorphin 
A)  substance P 
B)  opioids 
C)  neuropeptide Y 
D)  endorphin A

Question 2

What ion triggers synaptic vesicles to release neurotransmitters into the synaptic cleft?

Accepted Answer

A)  magnesium 
B)  sodium 
C)  chlorine 
D)  calcium 
A)  magnesium 
B)  sodium 
C)  chlorine 
D)  calcium D

Question 3

The conducting region of the neuron is the:

Accepted Answer

A)  dendrites. 
B)  axon terminals (synaptic knobs). 
C)  cell body. 
D)  axon. 
A)  dendrites. 
B)  axon terminals (synaptic knobs). 
C)  cell body. 
D)  axon. D

Question 4

Discuss the neuroglial cells that form the myelin sheaths in the CNS and the PNS and some of their differences.

Accepted Answer

Oligodendrocytes wrap the axons of certa

Question 5

Electrical synapses are faster than chemical synapses due to the presence of gap junctions between cells.

Accepted Answer

A) True 
 B)False

Question 6

Determine the membrane potential (mV) during the relative refractory period.

Accepted Answer

A)  +30 mV 
B)  -85 mV 
C)  -55 mV 
D)  +15 mV 
A)  +30 mV 
B)  -85 mV 
C)  -55 mV 
D)  +15 mV

Question 7

Which of the following is an effect of myelination?

Accepted Answer

A)  Myelination increases the speed of conduction of action potentials. 
B)  Myelination increases the rate of mitosis in damaged neurons. 
C)  Myelination increases the rate at which phagocytosis occurs in the brain. 
D)  Myelination increases the volume of cerebrospinal fluid in circulation. 
A)  Myelination increases the speed of conduction of action potentials. 
B)  Myelination increases the rate of mitosis in damaged neurons. 
C)  Myelination increases the rate at which phagocytosis occurs in the brain. 
D)  Myelination increases the volume of cerebrospinal fluid in circulation.

Question 8

Neurotransmitters that bind ionotropic receptors control:

Accepted Answer

A)  the activation of G -proteins inside the postsynaptic neuron. 
B)  some metabolic process inside the postsynaptic neuron. 
C)  the formation of a second messenger inside the postsynaptic neuron. 
D)  the movement of ions into or out of the postsynaptic neuron. 
A)  the activation of G -proteins inside the postsynaptic neuron. 
B)  some metabolic process inside the postsynaptic neuron. 
C)  the formation of a second messenger inside the postsynaptic neuron. 
D)  the movement of ions into or out of the postsynaptic neuron.

Question 9

Which of the following is the primary factor in the maintenance of a negative charge during resting membrane potential?

Accepted Answer

A)  sodium -potassium pump 
B)  ligand -gated channels 
C)  leak channels 
D)  voltage -gated channels 
A)  sodium -potassium pump 
B)  ligand -gated channels 
C)  leak channels 
D)  voltage -gated channels

Question 10

Describe the type of neural circuit that controls skeletal muscle movement.

Accepted Answer

Converging circuits are important for co

Question 11

Since Jerry's accident, he has had no sensations in his injured leg. Based on the functional classifications of neurons, explain the type of neuron that has been damaged. Why has he not regained lost nerve function?

Accepted Answer

Jerry has damaged a sensory, or afferent

Question 12

Which number on the graph represents when voltage -gated sodium channels are open?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 13

Within the PNS, a neuron will regenerate only if:

Accepted Answer

A)  the surrounding neuroglia regenerate first. 
B)  the neuron was myelinated. 
C)  the cell body remains intact. 
D)  scar tissue is removed by phagocytosis. 
A)  the surrounding neuroglia regenerate first. 
B)  the neuron was myelinated. 
C)  the cell body remains intact. 
D)  scar tissue is removed by phagocytosis.

Question 14

Neurotransmitters can be either excitatory or inhibitory depending upon the receptor present on the postsynaptic neuron.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is the most important excitatory neurotransmitter in the CNS?

Accepted Answer

A)  dopamine 
B)  GABA 
C)  glutamate 
D)  glycine 
A)  dopamine 
B)  GABA 
C)  glutamate 
D)  glycine

Question 16

Discuss the two main factors to influence conduction speed of an action potential.

Accepted Answer

Conduction speed is influenced by two ma

Question 17

What is NOT a function of the nervous system?

Accepted Answer

A)  integrate sensory information 
B)  sense the internal and external environments 
C)  control effectors 
D)  direct long -term functions such as growth 
A)  integrate sensory information 
B)  sense the internal and external environments 
C)  control effectors 
D)  direct long -term functions such as growth

Question 18

What type of neuron is found within the CNS to perform the job of information processing?

Accepted Answer

A)  interneurons (association neurons) 
B)  motor (efferent) neurons 
C)  bipolar neurons 
D)  sensory (afferent) neurons 
A)  interneurons (association neurons) 
B)  motor (efferent) neurons 
C)  bipolar neurons 
D)  sensory (afferent) neurons

Question 19

What type of postsynaptic potential would be more likely to promote an action potential - an IPSP or
EPSP? Explain.

Accepted Answer

A small, local depolarization called an

Question 20

Which nervous system division is responsible for the integration of sensory information?

Accepted Answer

A)  visceral motor division 
B)  somatic motor division 
C)  central nervous system 
D)  peripheral nervous system 
A)  visceral motor division 
B)  somatic motor division 
C)  central nervous system 
D)  peripheral nervous system

Exam 11: Introduction to the Nervous System Nervous Tissue

Which neuropeptide neurotransmitter is released from fibers transmitting sensory information about pain and temperature?

What ion triggers synaptic vesicles to release neurotransmitters into the synaptic cleft?

The conducting region of the neuron is the:

Discuss the neuroglial cells that form the myelin sheaths in the CNS and the PNS and some of their differences.

Electrical synapses are faster than chemical synapses due to the presence of gap junctions between cells.

Determine the membrane potential (mV) during the relative refractory period.

Which of the following is an effect of myelination?

Neurotransmitters that bind ionotropic receptors control:

Which of the following is the primary factor in the maintenance of a negative charge during resting membrane potential?

Describe the type of neural circuit that controls skeletal muscle movement.

Since Jerry's accident, he has had no sensations in his injured leg. Based on the functional classifications of neurons, explain the type of neuron that has been damaged. Why has he not regained lost nerve function?

Which number on the graph represents when voltage -gated sodium channels are open?

Within the PNS, a neuron will regenerate only if:

Neurotransmitters can be either excitatory or inhibitory depending upon the receptor present on the postsynaptic neuron.

Which of the following is the most important excitatory neurotransmitter in the CNS?

Discuss the two main factors to influence conduction speed of an action potential.

What is NOT a function of the nervous system?

What type of neuron is found within the CNS to perform the job of information processing?

What type of postsynaptic potential would be more likely to promote an action potential - an IPSP or EPSP? Explain.

Which nervous system division is responsible for the integration of sensory information?

Introduction to Anatomy Physiology

The Chemistry of Life

The Cell

Histology

The Integumentary System

Bones and Bone Tissue

The Skeletal System

Articulations

The Muscular System

Muscle Tissue Physiology

The Central Nervous System

The Peripheral Nervous System

The Autonomic Nervous System Homeostasis

The Special Senses

The Endocrine System

The Cardiovascular System I: the Heart

The Cardiovascular System Ii: Blood Vessels

Blood

The Lymphatic System Immunity

The Respiratory System

The Digestive System

Metabolism Nutrition

The Urinary System

Fluid, Electrolyte Acid-Base Homeostasis

The Reproductive System

Development Heredity

Filters

Which number on the graph represents when voltage ^-gated sodium channels are open?

What type of postsynaptic potential would be more likely to promote an action potential ^-an ^IPSPor ^E^PSP? Explain.