Question 1

Which of the following kinds of neurons are not cholinergic?

Accepted Answer

A) Motor neurons 
B) Postganglionic sympathetic neurons 
C) Postganglionic parasympathetic neurons 
D) Preganglionic sympathetic neurons 
E) Preganglionic parasympathetic neurons 
A) Motor neurons 
B) Postganglionic sympathetic neurons 
C) Postganglionic parasympathetic neurons 
D) Preganglionic sympathetic neurons 
E) Preganglionic parasympathetic neurons

Question 2

The cerebellum

Accepted Answer

A) Is important for coordinating body movement 
B) Has a cortex 
C) Is part of the brain stem 
D) Both is important for coordinating body movement and has a cortex are correct 
E) All of the choices are correct 
A) Is important for coordinating body movement 
B) Has a cortex 
C) Is part of the brain stem 
D) Both is important for coordinating body movement and has a cortex are correct 
E) All of the choices are correct

Question 3

Cerebrospinal fluid

Accepted Answer

A) Has the same composition as blood plasma 
B) Acts as a cushion for the brain and spinal cord 
C) Is secreted by cells lining the ventricles 
D) Both acts as a cushion for the brain and spinal cord and is secreted by cells lining the ventricles are correct 
E) All of the choices are correct 
A) Has the same composition as blood plasma 
B) Acts as a cushion for the brain and spinal cord 
C) Is secreted by cells lining the ventricles 
D) Both acts as a cushion for the brain and spinal cord and is secreted by cells lining the ventricles are correct 
E) All of the choices are correct

Question 4

Neuroeffector communication is similar to synaptic communication except that,in the former,the effector cells are not neurons.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements about acetylcholine is correct?

Accepted Answer

A) Acetylcholine binds to cholinergic receptors 
B) Acetylcholine binds to nicotinic and muscarinic receptors 
C) Acetylcholine synthesis is catalyzed by acetylcholinesterase 
D) Both acetylcholine binds to cholinergic receptors and acetylcholine binds to nicotinic and muscarinic receptors are correct 
E) Both acetylcholine binds to cholinergic receptors and acetylcholine synthesis is catalyzed by acetylcholinesterase are correct 
A) Acetylcholine binds to cholinergic receptors 
B) Acetylcholine binds to nicotinic and muscarinic receptors 
C) Acetylcholine synthesis is catalyzed by acetylcholinesterase 
D) Both acetylcholine binds to cholinergic receptors and acetylcholine binds to nicotinic and muscarinic receptors are correct 
E) Both acetylcholine binds to cholinergic receptors and acetylcholine synthesis is catalyzed by acetylcholinesterase are correct

Question 6

The two enzymes that catalyze breakdown of catecholamines are called ________ (MAO)and (COMT).Catecholamine catabolism differs from the breakdown of acetylcholine in that the enzymes for the former are found primarily (inside/outside)the cell and those for the latter are found (inside/outside).

Accepted Answer

monoamine oxidase,ca

Question 7

An EPSP in a membrane

Accepted Answer

A) Is a direct result of the opening of ligand-sensitive channels for Na+ and K+ ions in the membrane 
B) Is a direct result of the opening of voltage-gated channels for Na+ and K+ ions in the membrane 
C) Stabilizes the membrane to remain at its resting potential 
D) Both is a direct result of the opening of ligand-sensitive channels for Na+ and K+ ions in the membrane and stabilizes the membrane to remain at its resting potential are correct 
E) Both is a direct result of the opening of voltage-gated channels for Na+ and K+ ions in the membrane and stabilizes the membrane to remain at its resting potential are correct 
A) Is a direct result of the opening of ligand-sensitive channels for Na+ and K+ ions in the membrane 
B) Is a direct result of the opening of voltage-gated channels for Na+ and K+ ions in the membrane 
C) Stabilizes the membrane to remain at its resting potential 
D) Both is a direct result of the opening of ligand-sensitive channels for Na+ and K+ ions in the membrane and stabilizes the membrane to remain at its resting potential are correct 
E) Both is a direct result of the opening of voltage-gated channels for Na+ and K+ ions in the membrane and stabilizes the membrane to remain at its resting potential are correct

Question 8

Which is not true of myelin?

Accepted Answer

A) Is a fatty membranous sheath 
B) Is formed by glial cells 
C) Influences the rate of conduction of the electrical signal down an axon 
D) Myelin covers all parts of the neuron: axon, cell body and dendrites 
E) None of the choices are true 
A) Is a fatty membranous sheath 
B) Is formed by glial cells 
C) Influences the rate of conduction of the electrical signal down an axon 
D) Myelin covers all parts of the neuron: axon, cell body and dendrites 
E) None of the choices are true

Question 9

Ions other than Na+,K+ and Cl- play no role in generating the resting membrane potential of a cell.

Accepted Answer

A) True 
 B)False

Question 10

Catecholamines are the most abundant neurotransmitters in the CNS.

Accepted Answer

A) True 
 B)False

Question 11

Alzheimer's disease is thought to involve primarily

Accepted Answer

A) Loss of neurons that secrete or respond to catecholamines 
B) Loss of adrenergic neurons 
C) Loss of cholinergic neurons 
D) Loss of neurons that secrete or respond to dopamine 
E) The inevitable loss of brain function with aging 
A) Loss of neurons that secrete or respond to catecholamines 
B) Loss of adrenergic neurons 
C) Loss of cholinergic neurons 
D) Loss of neurons that secrete or respond to dopamine 
E) The inevitable loss of brain function with aging

Question 12

Amplitude depends on stimulus strength describes

Accepted Answer

A) Graded potentials 
B) Action potentials 
C) Both graded potentials and action potentials 
D) Neither graded potentials nor action potentials 
A) Graded potentials 
B) Action potentials 
C) Both graded potentials and action potentials 
D) Neither graded potentials nor action potentials

Question 13

Dorsal root ganglia contain the cell bodies of efferent neurons.

Accepted Answer

A) True 
 B)False

Question 14

A graded potential in a membrane results in an electric current along an adjacent area of membrane and this current diminishes with distance from the site of the initial potential change.

Accepted Answer

A) True 
 B)False

Question 15

Result in current flow describes

Accepted Answer

A) Graded potentials 
B) Action potentials 
C) Both graded potentials and action potentials 
D) Neither graded potentials nor action potentials 
A) Graded potentials 
B) Action potentials 
C) Both graded potentials and action potentials 
D) Neither graded potentials nor action potentials

Question 16

The regions of axon membrane that lie between regions of myelin are the

Accepted Answer

A) Islets of Langerhans 
B) Nodes of Ranvier 
C) Synaptic membranes 
D) Glial cells 
E) Dendrites 
A) Islets of Langerhans 
B) Nodes of Ranvier 
C) Synaptic membranes 
D) Glial cells 
E) Dendrites

Question 17

Most of the parasympathetic ganglia lie in chains along the spinal cord called sympathetic trunks.

Accepted Answer

A) True 
 B)False

Question 18

One of the most abundant excitatory neurotransmittors in the CNS is

Accepted Answer

A) Glutamate 
B) Dopamine 
C) Norepinephrine 
D) Gamma-aminobutyric acid (GAB
A)  
E) Endorphin 
A) Glutamate 
B) Dopamine 
C) Norepinephrine 
D) Gamma-aminobutyric acid (GAB
A)  
E) Endorphin

Question 19

Nicotine is

Accepted Answer

A) A cholinergic antagonist 
B) A beta-adrenergic agonist 
C) A cholinergic agonist 
D) An alpha-adrenergic antagonist 
E) A neurotransmitter 
A) A cholinergic antagonist 
B) A beta-adrenergic agonist 
C) A cholinergic agonist 
D) An alpha-adrenergic antagonist 
E) A neurotransmitter

Question 20

Which of the following statements about the refractory period of a membrane is true?

Accepted Answer

A) The absolute refractory period refers to the period of time during which another action potential cannot be initiated in that part of the membrane that has just undergone an action potential, no matter how great the strength of the stimulus 
B) The relative refractory period refers to the period of time during which another action potential can be initiated in that part of the membrane that has just undergone an action potential, if the stimulus is strong enough 
C) The refractory period prevents the action potential from spreading back over the part of the membrane that just underwent an action potential 
D) The refractory period places an upper limit on the frequency with which a nerve cell can conduct action potentials 
E) All of the choices are correct 
A) The absolute refractory period refers to the period of time during which another action potential cannot be initiated in that part of the membrane that has just undergone an action potential, no matter how great the strength of the stimulus 
B) The relative refractory period refers to the period of time during which another action potential can be initiated in that part of the membrane that has just undergone an action potential, if the stimulus is strong enough 
C) The refractory period prevents the action potential from spreading back over the part of the membrane that just underwent an action potential 
D) The refractory period places an upper limit on the frequency with which a nerve cell can conduct action potentials 
E) All of the choices are correct

Which of the following kinds of neurons are not cholinergic?

The cerebellum

Cerebrospinal fluid

Neuroeffector communication is similar to synaptic communication except that,in the former,the effector cells are not neurons.

Which of the following statements about acetylcholine is correct?

The two enzymes that catalyze breakdown of catecholamines are called ________ (MAO)and (COMT).Catecholamine catabolism differs from the breakdown of acetylcholine in that the enzymes for the former are found primarily (inside/outside)the cell and those for the latter are found (inside/outside).

An EPSP in a membrane

Which is not true of myelin?

Ions other than Na⁺,K⁺ and Cl^- play no role in generating the resting membrane potential of a cell.

Catecholamines are the most abundant neurotransmitters in the CNS.

Alzheimer's disease is thought to involve primarily

Amplitude depends on stimulus strength describes

Dorsal root ganglia contain the cell bodies of efferent neurons.

A graded potential in a membrane results in an electric current along an adjacent area of membrane and this current diminishes with distance from the site of the initial potential change.

Result in current flow describes

The regions of axon membrane that lie between regions of myelin are the

Most of the parasympathetic ganglia lie in chains along the spinal cord called sympathetic trunks.

One of the most abundant excitatory neurotransmittors in the CNS is

Nicotine is

Which of the following statements about the refractory period of a membrane is true?

Homeostasis: a Framework for Human Physiology

Chemical Composition of the Body

Cellular Structure, Proteins, and Metabolism

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

The Immune System

Medical Physiology: Integration Using Clinical Cases

Filters

Exam 6: Neuronal Signaling and the Structure of the Nervous System

Which of the following kinds of neurons are not cholinergic?

The cerebellum

Cerebrospinal fluid

Neuroeffector communication is similar to synaptic communication except that,in the former,the effector cells are not neurons.

Which of the following statements about acetylcholine is correct?

The two enzymes that catalyze breakdown of catecholamines are called ________ (MAO)and (COMT).Catecholamine catabolism differs from the breakdown of acetylcholine in that the enzymes for the former are found primarily (inside/outside)the cell and those for the latter are found (inside/outside).

An EPSP in a membrane

Which is not true of myelin?

Ions other than Na+,K+ and Cl- play no role in generating the resting membrane potential of a cell.

Catecholamines are the most abundant neurotransmitters in the CNS.

Alzheimer's disease is thought to involve primarily

Amplitude depends on stimulus strength describes

Dorsal root ganglia contain the cell bodies of efferent neurons.

A graded potential in a membrane results in an electric current along an adjacent area of membrane and this current diminishes with distance from the site of the initial potential change.

Result in current flow describes

The regions of axon membrane that lie between regions of myelin are the

Most of the parasympathetic ganglia lie in chains along the spinal cord called sympathetic trunks.

One of the most abundant excitatory neurotransmittors in the CNS is

Nicotine is

Which of the following statements about the refractory period of a membrane is true?

Homeostasis: a Framework for Human Physiology

Chemical Composition of the Body

Cellular Structure, Proteins, and Metabolism

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

The Immune System

Medical Physiology: Integration Using Clinical Cases

Filters

Ions other than Na⁺,K⁺ and Cl^- play no role in generating the resting membrane potential of a cell.