Question 1

Which of the following is true of cerebrospinal fluid (CSF)?

Accepted Answer

A) Is formed from the blood within the dural sinuses 
B) Is formed across the walls of the arachnoid villi and is drained by the choroid plexi 
C) Contains water,electrolytes,and blood 
D) Circulates within the subarachnoid space and central canal 
A) Is formed from the blood within the dural sinuses 
B) Is formed across the walls of the arachnoid villi and is drained by the choroid plexi 
C) Contains water,electrolytes,and blood 
D) Circulates within the subarachnoid space and central canal

Question 2

Which of the following is true of myelination?

Accepted Answer

A) Occurs only at the nodes of Ranvier 
B) Increases the speed of the action potential along the axon 
C) Is responsible for the gray appearance of gray matter 
D) Increases the synthesis of neurotransmitters 
A) Occurs only at the nodes of Ranvier 
B) Increases the speed of the action potential along the axon 
C) Is responsible for the gray appearance of gray matter 
D) Increases the synthesis of neurotransmitters

Question 3

Which of the following is least true of the term REM?

Accepted Answer

A) The most obvious characteristic is rapid eye movements. 
B) The key to restorative sleep is the elimination of REM. 
C) Most dreaming occurs during REM sleep. 
D) Characterized by fluctuations in blood pressure,heart rate,and rhythm. 
A) The most obvious characteristic is rapid eye movements. 
B) The key to restorative sleep is the elimination of REM. 
C) Most dreaming occurs during REM sleep. 
D) Characterized by fluctuations in blood pressure,heart rate,and rhythm.

Question 4

The emetic center

Accepted Answer

A) receives information from the chemoreceptor trigger zone (CTZ). 
B) is located in the vertebra prominens. 
C) is the target of antipyretics. 
D) All of the above are true. 
A) receives information from the chemoreceptor trigger zone (CTZ). 
B) is located in the vertebra prominens. 
C) is the target of antipyretics. 
D) All of the above are true.

Question 5

CSF circulates through all of the following structures except the

Accepted Answer

A) Subarachnoid space 
B) Foramen magnum 
C) Fourth ventricle 
D) Cerebral aqueduct 
A) Subarachnoid space 
B) Foramen magnum 
C) Fourth ventricle 
D) Cerebral aqueduct

Question 6

Which of the following is the type of nervous tissue that conducts a nerve impulse?

Accepted Answer

A) Astrocyte 
B) Neuroglia 
C) Neuron 
D) Ependymal cell 
A) Astrocyte 
B) Neuroglia 
C) Neuron 
D) Ependymal cell

Question 7

This structure is part of the diencephalon; it regulates the anterior pituitary gland,water balance,appetite,body temperature,and the autonomic nervous system.

Accepted Answer

A) Cerebellum 
B) Pons 
C) Medulla oblongata 
D) Hypothalamus 
A) Cerebellum 
B) Pons 
C) Medulla oblongata 
D) Hypothalamus

Question 8

The occipital lobe

Accepted Answer

A) is a brain stem structure. 
B) performs the "executive" functions. 
C) is called the vital center. 
D) contains the primary visual cortex. 
A) is a brain stem structure. 
B) performs the "executive" functions. 
C) is called the vital center. 
D) contains the primary visual cortex.

Question 9

The precentral gyrus

Accepted Answer

A) is located in the frontal lobe. 
B) is the primary visual cortex. 
C) contains the primary somatosensory area. 
D) is called the vital center. 
A) is located in the frontal lobe. 
B) is the primary visual cortex. 
C) contains the primary somatosensory area. 
D) is called the vital center.

Question 10

The emetic center and the CTZ

Accepted Answer

A) are frontal lobe structures. 
B) are located within the floor of the fourth ventricle. 
C) are concerned with vomiting. 
D) receive sensory input only from a distended stomach. 
A) are frontal lobe structures. 
B) are located within the floor of the fourth ventricle. 
C) are concerned with vomiting. 
D) receive sensory input only from a distended stomach.

Question 11

What is the name of the first phase of the action potential that is caused by the inward movement of sodium?

Accepted Answer

A) Repolarization 
B) Refractory period 
C) Depolarization 
D) Saltatory conduction 
A) Repolarization 
B) Refractory period 
C) Depolarization 
D) Saltatory conduction

Question 12

The repolarizing phase of the action potential

Accepted Answer

A) means that the inside of the cell is becoming more positive. 
B) is caused by the movement of sodium (Na+) into the cell. 
C) is caused by the movement of potassium (K+) out of the cell. 
D) is caused by the Na+/K+ pump located in the membrane. 
A) means that the inside of the cell is becoming more positive. 
B) is caused by the movement of sodium (Na+) into the cell. 
C) is caused by the movement of potassium (K+) out of the cell. 
D) is caused by the Na+/K+ pump located in the membrane.

Question 13

The phases of the action potential (nerve impulse) are

Accepted Answer

A) excitatory and inhibitory. 
B) sensory and motor. 
C) depolarization and repolarization. 
D) dendrites and axons. 
A) excitatory and inhibitory. 
B) sensory and motor. 
C) depolarization and repolarization. 
D) dendrites and axons.

Question 14

What happens when the resting nerve is stimulated to threshold potential?

Accepted Answer

A) The efflux of K+ restores the resting membrane potential. 
B) An action potential fires. 
C) The Na+/K+ pump further depolarizes the cell. 
D) The membrane permeability to Na+ decreases. 
A) The efflux of K+ restores the resting membrane potential. 
B) An action potential fires. 
C) The Na+/K+ pump further depolarizes the cell. 
D) The membrane permeability to Na+ decreases.

Question 15

What term describes the hopping of the action potential (nerve impulse) along the axon from one node (of Ranvier) to the next?

Accepted Answer

A) Myelination 
B) Depolarization 
C) Saltatory conduction 
D) Repolarization 
A) Myelination 
B) Depolarization 
C) Saltatory conduction 
D) Repolarization

Question 16

Endorphins are

Accepted Answer

A) natural morphine-like substances that can reduce anxiety and induce a sense of well-being. 
B) energy sources much like ATP. 
C) secreted by the choroid plexus and circulated within the subarachnoid space. 
D) waste products generated by depolarizing neurons. 
A) natural morphine-like substances that can reduce anxiety and induce a sense of well-being. 
B) energy sources much like ATP. 
C) secreted by the choroid plexus and circulated within the subarachnoid space. 
D) waste products generated by depolarizing neurons.

Question 17

The temporal lobe

Accepted Answer

A) is a brain stem structure. 
B) is a cerebellar structure. 
C) contains the primary auditory cortex. 
D) is a large mass of white matter that joins the right and left cerebral hemispheres. 
A) is a brain stem structure. 
B) is a cerebellar structure. 
C) contains the primary auditory cortex. 
D) is a large mass of white matter that joins the right and left cerebral hemispheres.

Question 18

Which group is incorrect?

Accepted Answer

A) Parts of the brain: cerebrum,diencephalon,brain stem,cerebellum 
B) Meninges: pia mater,corpus callosum,dura mater 
C) Protective structures of the CNS: bone,meninges,cerebrospinal fluid,blood-brain barrier 
D) Types of glia: astrocytes,ependymal cells,oligodendrocytes,microglia 
A) Parts of the brain: cerebrum,diencephalon,brain stem,cerebellum 
B) Meninges: pia mater,corpus callosum,dura mater 
C) Protective structures of the CNS: bone,meninges,cerebrospinal fluid,blood-brain barrier 
D) Types of glia: astrocytes,ependymal cells,oligodendrocytes,microglia

Question 19

The inside of the unstimulated neuron is negative; this electrical charge is caused by the outward leak of potassium and is called

Accepted Answer

A) depolarization. 
B) the action potential. 
C) the resting membrane potential. 
D) the refractory period. 
A) depolarization. 
B) the action potential. 
C) the resting membrane potential. 
D) the refractory period.

Question 20

The astrocytes

Accepted Answer

A) support and protect the neurons and help form the blood-brain barrier. 
B) secrete myelin. 
C) secrete cerebrospinal fluid. 
D) are concentrated within the choroid plexus. 
A) support and protect the neurons and help form the blood-brain barrier. 
B) secrete myelin. 
C) secrete cerebrospinal fluid. 
D) are concentrated within the choroid plexus.

Exam 10: Nervous System: Nervous Tissue and Brain

Which of the following is true of cerebrospinal fluid (CSF)?

Which of the following is true of myelination?

Which of the following is least true of the term REM?

The emetic center

CSF circulates through all of the following structures except the

Which of the following is the type of nervous tissue that conducts a nerve impulse?

This structure is part of the diencephalon; it regulates the anterior pituitary gland,water balance,appetite,body temperature,and the autonomic nervous system.

The occipital lobe

The precentral gyrus

The emetic center and the CTZ

What is the name of the first phase of the action potential that is caused by the inward movement of sodium?

The repolarizing phase of the action potential

The phases of the action potential (nerve impulse) are

What happens when the resting nerve is stimulated to threshold potential?

What term describes the hopping of the action potential (nerve impulse) along the axon from one node (of Ranvier) to the next?

Endorphins are

The temporal lobe

Which group is incorrect?

The inside of the unstimulated neuron is negative; this electrical charge is caused by the outward leak of potassium and is called

The astrocytes

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels and Special Circulations

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acidbase Balance

Reproductive Systems

Human Development and Heredity

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