A. Brain
Which of the following is NOT part of the peripheral nervous system?
A. Brain
B. Somatic nervous system
C. Peripheral nerve pathways
D. Cranial nerves
C. Microfilaments
Which of the following is responsible for structural support within a cell?
A. Nissl substance
B. Dendrites
C. Microfilaments
D. Microtubules
B. Myelin
Which of the following is an insulating substance for the neuron?
A. Schwann sheath
B. Myelin
C. Neurilemma
D. Node of Ranvier
D. Interneurons
Which of the following neurons transmit impulses from neuron to neuron?
A. Unipolar neurons
B. Sensory neurons
C. Motor neurons
D. Interneurons
B. Neurofilaments atrophy.
A person experiences a traumatic event and neurons are severed. Which of the following is NOT a characteristic of wallerian degeneration?
A. Swelling appears.
B. Neurofilaments atrophy.
C. The myelin sheath shrinks.
D. The axon portion degenerates.
A. Temporal summation
Which of the following BEST describes successive, rapid impulses received from a single neuron on the same synapse?
A. Temporal summation
B. Spatial summation
C. Actuation
D. Facilitation
B. Cerebrum
Which of the following is NOT a major division of the brain?
A. Forebrain
B. Cerebrum
C. Midbrain
D. Hindbrain
B. Tegmentum
The tegmentum, corpora quadrigemina, and cerebral peduncles are part of the midbrain. The cerebral hemispheres make up the forebrain. The brainstem is composed of the midbrain, medulla oblongata, and pons
Which of the following is a component of the midbrain?
A. Cerebral hemisphere
B. Tegmentum
C. Cerebellum
D. Medulla oblongata
D. Gray matter
Which part of the brain contains all cell bodies and dendrites of neurons?
A. Gyri
B. Sulci
C. White matter
D. Gray matter
B. Responsible for motor speech
Which of the following is TRUE regarding Broca's area?
A. Responsible for receptive speech
B. Responsible for motor speech
C. Results in the inability to hear
D. Is often found in the right cerebral hemisphere
A. Major integrating center for afferent impulse
Which of the following is a function of the thalamus?
A. Major integrating center for afferent impulse
B. Maintenance of internal environment
C. Voluntary visual motor movements
D. Movements of the auditory system
B. Maintains balance or posture
Which of the following is TRUE regarding the cerebellum?
A. Makes up fibers of the corticospinal tract
B. Maintains balance or posture
C. Controls respiration
D. Location of cranial nerves V through VIII
D. Alterations in balance and posture
An individual experiences a brain injury and the medulla oblongata is affected. Which of the following would you LEAST expect to occur due to this injury?
A. Alterations in heart rate
B. Alterations in respirations
C. Alterations in blood pressure
D. Alte
B. Substantia gelatinosa
Which of the following is involved in pain transmission?
A. Posterior horn
B. Substantia gelatinosa
C. Anterior horn
D. Dorsal root ganglia
A. The subdural space lies between the dura and arachnoid.
A person experiences a hematoma called subdural hematoma. Which of the following is a TRUE statement regarding a subdural hematoma?
A. The subdural space lies between the dura and arachnoid.
B. It occurs due to the disruption of an artery.
C. It is closel
B. Epidural
Alcoholic persons are prone to epidural hematomas. This is an arterial bleed of blood vessels that lie within the grooves in the skull
An alcoholic man falls and fractures his skull. He sustains an arterial bleed near the grooves of the skull. With which of the following types of hematoma is this man most likely going to present?
A. Subdural
B. Epidural
C. Subarachnoid
D. Lumbar cisterna
C. Epinephrine induces general vasodilation.
Which is TRUE about epinephrine?
A. Parasympathetic preganglionic fibers release epinephrine.
B. Epinephrine stimulates only ?-adrenergic receptors.
C. Epinephrine induces general vasodilation.
D. The action of epinephrine is the same no matter which rece