Question 1

Which type of axon transmits a nerve impulse at the highest rate?

Accepted Answer

A)  Large nonmyelinated 
B)  Large myelinated 
C)  Small nonmyelinated 
D)  Small myelinated 
A)  Large nonmyelinated 
B)  Large myelinated 
C)  Small nonmyelinated 
D)  Small myelinated

Question 2

What name is given to a large network of neurons within the brainstem that is essential for maintaining wakefulness?

Accepted Answer

A)  Midbrain 
B)  Reticular activating system 
C)  Medulla oblongata 
D)  Pons 
A)  Midbrain 
B)  Reticular activating system 
C)  Medulla oblongata 
D)  Pons

Question 3

Which statement is true regarding upper motor neurons?

Accepted Answer

A)  Upper motor neurons directly influence muscles. 
B)  They modify spinal reflex arcs. 
C)  Upper motor neurons are located in the gray matter of the spinal cord. 
D)  They extend their dendritic processes out of the CNS. 
A)  Upper motor neurons directly influence muscles. 
B)  They modify spinal reflex arcs. 
C)  Upper motor neurons are located in the gray matter of the spinal cord. 
D)  They extend their dendritic processes out of the CNS.

Question 4

Match the function with the appropriate cranial nerve.
-Abducens nerve

Accepted Answer

A) Fibers emerge from the posterior midbrain and exit from the skull to run to the eye. 
B) Provides motor and sensory functions to the face, mouth, nose, and eyes. 
C) Fibers emerge from the midbrain, exit from the skull, and extend to the eye. 
D) Controls motor functions to the pharynx and salivary glands and sensory functions from the pharynx and tongue. 
E) Innervates muscles that move the eye laterally.
F)Affects control over the motor fibers to the muscles of tongue and sensory impulses from the tongue to the brain.
G)Is purely sensory and carries impulses for the sense of smell.
H)Is made up of parasympathetic motor fibers that supply the smooth muscles of the abdominal organs.
I)Transmits impulses for the sense of hearing.
J)Carries sensory and motor fibers to the pharynx and larynx. 
A) Fibers emerge from the posterior midbrain and exit from the skull to run to the eye. 
B) Provides motor and sensory functions to the face, mouth, nose, and eyes. 
C) Fibers emerge from the midbrain, exit from the skull, and extend to the eye. 
D) Controls motor functions to the pharynx and salivary glands and sensory functions from the pharynx and tongue. 
E) Innervates muscles that move the eye laterally.
F)Affects control over the motor fibers to the muscles of tongue and sensory impulses from the tongue to the brain.
G)Is purely sensory and carries impulses for the sense of smell.
H)Is made up of parasympathetic motor fibers that supply the smooth muscles of the abdominal organs.
I)Transmits impulses for the sense of hearing.
J)Carries sensory and motor fibers to the pharynx and larynx.

Exam 15: Structure and Function of the Neurologic System

Which type of axon transmits a nerve impulse at the highest rate?

What name is given to a large network of neurons within the brainstem that is essential for maintaining wakefulness?

Which statement is true regarding upper motor neurons?

Match the function with the appropriate cranial nerve. -Abducens nerve

Cellular Biology

Altered Cellular and Tissue Biology

The Cellular Environment: Fluids and Electrolytes, Acids and Bases

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Epigenetics and Disease

Innate Immunity: Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation

Infection

Stress and Disease

Cancer Biology

Cancer Epidemiology

Cancer in Children

Pain, Temperature Regulation, Sleep, and Sensory Function

Alterations in Cognitive Systems,Cerebral Hemodynamics,and Motor Function

Disorders of the Central and Peripheral Nervous Systems and the Neuromuscular Junction

Neurobiology of Schizophrenia, Mood Disorders, and Anxiety Disorders

Alterations of Neurologic Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Reproductive Systems

Alterations of the Female Reproductive System

Alterations of the Male Reproductive System

Sexually Transmitted Infections

Structure and Function of the Hematologic System

Alterations of Erythrocyte Function

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Alterations of Pulmonary Function in Children

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Adults

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Children

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