Comprehensive Radiographic Pathology Ch 8 Nervous System Guide Questions with Answe

Comprehensive Radiographic Pathology Ch 8 Nervous System Guide
Questions with Answers
peripheral nervous [system] (PNS) - correct answers What system consists of the cranial, spinal, and
autonomic nerves.



central nervous system (CNS) - correct answers brain and spinal cord



Afferent - correct answers What neurons, also known as sensory neurons, carry impulses to the central
nervous system from the peripheral receptors.



central nervous system (CNS) to the peripheral effectors - correct answers Efferent neurons conduct
impulses away from the



autonomic nervous system - correct answers The smooth muscle, cardiac muscle, and glandular
epithelial tissue are controlled by the



neuron - correct answers The basic unit of the nervous system is the



axon - correct answers A single threadlike extension, a(n) ________ leads away from the nerve cell
body.



myelin sheath - correct answers To increase the rate of transmission of nervous impulses, the axon is
insulated by the



synapse - correct answers A chemical reaction permits the travel of impulses from the dendrite to the
next axon at the



reflux arc - correct answers What consists of the travel of an impulse from a peripheral receptor to the
peripheral effectors.



motor or efferent neurons - correct answers The neurons that carry the impulse to the skeletal muscle
to cause movement are called the

,cortex - correct answers The thin layer of gray matter where nerve cell bodies are concentrated is the
_______ of the cerebrum.



cerebrum - correct answers The two hemispheres are called the



gyri and sulci - correct answers High elevated convolutions on the surface of the cerebrum are the_____
and the shallow grooves are the _____



White - correct answers What matter is the inner area of the cerebrum consisting of nerve fiber tracts.



sensory; motor - correct answers The cerebral cortex is responsible for receiving ________ information
from the body and for triggering impulses to control ________activity.



Visual - correct answers What impulses are transmitted to the posterior portion of the brain.



opposite - correct answers Stimulation on one side of the cerebral cortex causes contraction of muscle
on the _______ side of the

body.



corpus callosum - correct answers What connects the two cerebral hemispheres by a mass of white
matter.



brainstem - correct answersWhat is composed of the midbrain, the pons, and the medulla.



cerebellum - correct answersThe coordination of muscle groups by the _______ helps maintain
equilibrium and posture.



Meninges - correct answersthree protective membranes that surround the brain and spinal cord



falx cerebri - correct answersseparates the two cerebral hemispheres

, falx cerebelli - correct answersseparates the two cerebellar hemispheres



tentorium cerebelli - correct answersseparates cerebrum from cerebellum



cranial bones or skull - correct answersThe outer protective covering of the brain is the



pia mater; arachnoid membrane; dura mater - correct answersThe three meningeal layers, from the
innermost to the outer layer, are the



aqueduct of Sylvius - correct answersThe third and fourth ventricles are connected by the



foramen of Monro - correct answersThe superior portion of the third ventricle, which connects the
lateral ventricles, is known as the



lateral ventricles and the roofs of the third and fourth ventricles. - correct answersThe choroid plexus is
located in the



tentorium cerebelli - correct answersWhat is a tentlike covering over the cerebellum that separates it
from the occipital lobe of the cerebrum.



thalamus - correct answersWhat is a relay station that receives and processes sensory information.



central nervous system and the peripheral nervous system - correct answersThe two divisions of the
nervous system are the



third ventricle; thalamus; hypothalamus - correct answersThe three structures found in the
diencephalon are the



meningitis - correct answersAcute inflammation of the meninges (pia mater and arachnoid) is