Question 1

Monamine oxidase inhibitors (MAO inhibitors)

Accepted Answer

A) prevent synaptic transmission. 
B) enhance the breakdown of norepinephrine. 
C) enhance the binding of norepinephrine to its receptors. 
D) prevent the release of norepinephrine by the presynaptic terminal. 
E) have no effect on the action of norepinephrine. 
A) prevent synaptic transmission. 
B) enhance the breakdown of norepinephrine. 
C) enhance the binding of norepinephrine to its receptors. 
D) prevent the release of norepinephrine by the presynaptic terminal. 
E) have no effect on the action of norepinephrine. C

Question 2

____________ are processes that conduct electric signals toward the cell body.

Accepted Answer

dendrites

Question 3

Gap junctions are functional __________ synapses.

Accepted Answer

A) chemical 
B) electrical 
C) potential 
D) intracellular 
E) neuromuscular 
A) chemical 
B) electrical 
C) potential 
D) intracellular 
E) neuromuscular B

Question 4

-The figure is a process figure of the chemical synapse.What does "D" represent?

Accepted Answer

A) postsynaptic membrane 
B) synaptic cleft 
C) synaptic vesicle 
D) voltage-gated calcium channel 
E) presynaptic terminal 
A) postsynaptic membrane 
B) synaptic cleft 
C) synaptic vesicle 
D) voltage-gated calcium channel 
E) presynaptic terminal

Question 5

Which of the following is NOT a neuroglia of the CNS?

Accepted Answer

A) ependymal cells 
B) satellite cells 
C) oligodendrocytes 
D) astrocytes 
A) ependymal cells 
B) satellite cells 
C) oligodendrocytes 
D) astrocytes

Question 6

The central nervous system includes the

Accepted Answer

A) ganglia. 
B) spinal cord. 
C) spinal nerves. 
D) cranial nerves. 
E) sensory receptors. 
A) ganglia. 
B) spinal cord. 
C) spinal nerves. 
D) cranial nerves. 
E) sensory receptors.

Question 7

Axons

Accepted Answer

A) contain the nucleus. 
B) are numerous extensions from each neuron. 
C) do not have a trigger zone. 
D) have a distal portion that branches to form the presynaptic terminals. 
E) do not have a resting membrane potential. 
A) contain the nucleus. 
B) are numerous extensions from each neuron. 
C) do not have a trigger zone. 
D) have a distal portion that branches to form the presynaptic terminals. 
E) do not have a resting membrane potential.

Question 8

Match the following concerning concentration differences across the plasma membrane.
-postassium ions

Accepted Answer

A) concentration of potassium 
B) concentration of sodium and chloride 
C) negatively charged proteins 
D) sodium/potassium pump 
E) plasma membrane is more permeable to this ion because of leak ion channels 
A) concentration of potassium 
B) concentration of sodium and chloride 
C) negatively charged proteins 
D) sodium/potassium pump 
E) plasma membrane is more permeable to this ion because of leak ion channels

Question 9

Action potentials are conducted more rapidly when transmission is

Accepted Answer

A) from node to node on a myelinated axon. 
B) on a small diameter axon. 
C) on an unmyelinated axon. 
D) from internode to internode. 
E) from internode to node on a myelinated axon. 
A) from node to node on a myelinated axon. 
B) on a small diameter axon. 
C) on an unmyelinated axon. 
D) from internode to internode. 
E) from internode to node on a myelinated axon.

Question 10

Which of the following is mismatched?

Accepted Answer

A) central nervous system - brain 
B) autonomic nervous system - sympathetic and parasympathetic divisions 
C) peripheral nervous system - spinal nerves 
D) somatic nervous system - sensory division of PNS 
E) peripheral nervous system - sensory and motor divisions 
A) central nervous system - brain 
B) autonomic nervous system - sympathetic and parasympathetic divisions 
C) peripheral nervous system - spinal nerves 
D) somatic nervous system - sensory division of PNS 
E) peripheral nervous system - sensory and motor divisions

Question 11

For the resting membrane potential,increasing the sodium ion concentration in the ECF results in

Accepted Answer

A) hyperpolarization. 
B) depolarization. 
C) hypopolarization. 
D) little change in membrane potential. 
E) There is not enough information to determine the results. 
A) hyperpolarization. 
B) depolarization. 
C) hypopolarization. 
D) little change in membrane potential. 
E) There is not enough information to determine the results.

Question 12

Which of the following is mismatched?

Accepted Answer

A) microglia - provide support for the neuron cell body 
B) astrocytes - blood-brain barrier 
C) oligodendrocytes - form myelin sheaths 
D) ependymal cells - produce cerebrospinal fluid 
E) ependymal cells - choroid plexus 
A) microglia - provide support for the neuron cell body 
B) astrocytes - blood-brain barrier 
C) oligodendrocytes - form myelin sheaths 
D) ependymal cells - produce cerebrospinal fluid 
E) ependymal cells - choroid plexus

Question 13

Action potentials are conducted rapidly from one node of Ranvier to the next in a process called ____________ conduction.

Accepted Answer

The answer of Action potentials are conducted rapidly from one...

Question 14

Match the neuroglial cell with its function.
-microglia

Accepted Answer

A) influence function of blood-brain barrier 
B) macrophages in CNS 
C) produce cerebrospinal fluid 
D) form myelin sheath around axons in CNS 
E) form myelin sheath around part of the axon in the PNS 
A) influence function of blood-brain barrier 
B) macrophages in CNS 
C) produce cerebrospinal fluid 
D) form myelin sheath around axons in CNS 
E) form myelin sheath around part of the axon in the PNS

Question 15

The peripheral nervous system includes the

Accepted Answer

A) brain. 
B) spinal cord. 
C) cranial nerves. 
D) blood-brain barrier. 
E) cerebellum. 
A) brain. 
B) spinal cord. 
C) cranial nerves. 
D) blood-brain barrier. 
E) cerebellum.

Question 16

A neuron is receiving a stimulus which gets stronger and stronger.The result is

Accepted Answer

A) amplitude of the action potential increases. 
B) duration of the action potential increases. 
C) frequency of occurrence of action potentials increases. 
D) resonance of action potentials increases. 
E) height of the action potentials increases. 
A) amplitude of the action potential increases. 
B) duration of the action potential increases. 
C) frequency of occurrence of action potentials increases. 
D) resonance of action potentials increases. 
E) height of the action potentials increases.

Question 17

Match the neuroglial cell with its function.
-Schwann cell

Accepted Answer

A) influence function of blood-brain barrier 
B) macrophages in CNS 
C) produce cerebrospinal fluid 
D) form myelin sheath around axons in CNS 
E) form myelin sheath around part of the axon in the PNS 
A) influence function of blood-brain barrier 
B) macrophages in CNS 
C) produce cerebrospinal fluid 
D) form myelin sheath around axons in CNS 
E) form myelin sheath around part of the axon in the PNS

Question 18

-The figure illustrates the Action Potential.What does "C" represent?

Accepted Answer

A) repolarization 
B) depolarization 
C) local potential 
D) threshold 
E) afterpotential 
A) repolarization 
B) depolarization 
C) local potential 
D) threshold 
E) afterpotential

Question 19

During depolarization of the plasma membrane,

Accepted Answer

A) sodium ions move rapidly into the cell. 
B) potassium ions move rapidly out of the cell. 
C) membrane permeability to sodium ions decreases. 
D) the outside of the cell becomes positively charged relative to the inside. 
E) sodium ions move rapidly out of the cell. 
A) sodium ions move rapidly into the cell. 
B) potassium ions move rapidly out of the cell. 
C) membrane permeability to sodium ions decreases. 
D) the outside of the cell becomes positively charged relative to the inside. 
E) sodium ions move rapidly out of the cell.

Question 20

Continuous conduction of an action potential means that

Accepted Answer

A) once one action potential is created,it moves down the axon. 
B) the whole axon depolarizes at the same time. 
C) one action potential stimulates the production of a new action potential at the adjacent site. 
D) an action potential is conducted from one node of Ranvier to the next node. 
A) once one action potential is created,it moves down the axon. 
B) the whole axon depolarizes at the same time. 
C) one action potential stimulates the production of a new action potential at the adjacent site. 
D) an action potential is conducted from one node of Ranvier to the next node.

Exam 11: Functional Organization of Nervous Tissue

Monamine oxidase inhibitors (MAO inhibitors)

____________ are processes that conduct electric signals toward the cell body.

Gap junctions are functional __________ synapses.

-The figure is a process figure of the chemical synapse.What does "D" represent?

Which of the following is NOT a neuroglia of the CNS?

The central nervous system includes the

Axons

Match the following concerning concentration differences across the plasma membrane. -postassium ions

Action potentials are conducted more rapidly when transmission is

Which of the following is mismatched?

For the resting membrane potential,increasing the sodium ion concentration in the ECF results in

Which of the following is mismatched?

Action potentials are conducted rapidly from one node of Ranvier to the next in a process called ____________ conduction.

Match the neuroglial cell with its function. -microglia

The peripheral nervous system includes the

A neuron is receiving a stimulus which gets stronger and stronger.The result is

Match the neuroglial cell with its function. -Schwann cell

-The figure illustrates the Action Potential.What does "C" represent?

During depolarization of the plasma membrane,

Continuous conduction of an action potential means that

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition,metabolism,and Temperature Regulation

Urinary System

Water,electrolyte,and Acid-Based Balance

Reproductive System

Development,growth,aging,and Genetics

Filters