In the Condition _____, A virus infects dorsal root ganglia, causing a painful rash whose distribution corresponds to that of the affected sensory nerve.
The middle layer of the spinal nerve is termed the...
Move the neck
Somatic motor nuclei are located on each side of the spinal cord and control all of the following, except muscles that...
all of the above
Which of the following is true regarding an epidural block...
_____ is an inflammation of the menigeal membranes.
After age ____ the vertebral column continues to elongate, but the spinal cord does not.
The cord itself is ____ in relation to the certebral column.
The outermost layer of connective tissue that surrounds each spinal nerve is the.
The white matter of the spinal cord is dominated by.
The tough, fibrous outermost covering of the spinal cord is the.
pathway to 4 to 6 neurons
Control of spinal reflexes by the brain involves all of the following except.
Are arranged according to dermatomes
All of the following are true of polysynaptic reflexes, except that they.
Interneurons in the spinal cord prevent muscle antagonists from interfering with an intended movement by.
Cross Extensor Reflex
The reflex that complements a withdrawal reflex by making compensatory adjustments on the opposite side of the body receiving the stimulus is the ______ reflex.
Remove from painful stimulus
The flexor reflex...
The reflex that prevents a muscle from exerting too much tension is the _____ reflex.
are found in tendons and skeletal muscles
All of the following are true of muscle spindles, except that they....
_____ is an example of a polysynaptic reflex.
Reflexes that result from the connections that form between neurons during development are _____ reflexes.
Where they are sensory or motor
Reflexes can be classified according to all of the following except...
have a wide variability in response
All of the following are true of neural reflexes, except that they ....
The Ulnar nerve is found in which plexus?
The central rami of spinal nerves C5 to T1 form the _____ Plexus.
A nerve of the cervical plexus that innervates the diaphragm is the ____ nerves.
Each of the following nerves is found in the lumbar plexus, except the ____ nerve.
The joining of the central rami of adjacent nerves is termed a...
Sensory and motor innervations of the skin of the sides and front of the body are provided by the.
Spinal nerves from the sacral region of the cord innervate the _____ muscles.
Muscles of the neck and shoulder are innervated by spinal nerves from the _____-region.
The _____ of each spinal nerve provides sensory and motor innervation to the skin and muscles of the back.
Lumbar Spinal- Nerve 4
Which of the following pairs is not properly matched?
Postganglionic fibers of the ANS that innervate organs do not rejoin the spinal nerve but form...
Gray Ramus Communicans
The postganglionic fibers that connect an autonomic ganglion is the thoracic or lumbar region with the local spinal nerve are called the...
The preganglionic fibers that connect a spinal nerve with an autonomic ganglion in the throacic and lumbar region of the spinal cord are the....
The dorsal and ventral roots of each spinal segment unite to form a...
Spinal nerves are ____ nerves.
Axons of Motor Neurons
The ventral root of a spinal nerve contains.
Axons of Sensory Neurons
The dorsal root of a spinal nerve contains.
Cell bodies of Sensory Neurons
The dorsal root ganglia contain
The outermost connective-tissue covering of spinal nerves is the.
Bundles of Axons for origins, destinations, and functions
The white matter of the spinal cord contains.
Axons crossing from one side of the spinal cord to the other within the gray matter are found in the.
The projections of gray matter toward the outer surface of the spinal cord are called.
Blood vessels directly supplying the spinal cord are found in the.
The specialized membranes that protect the spinal cord are termed.
The spinal cord continues to elongate and enlarge until about age ____.
The entire spinal cord is divided into ____ segments
The _____ is a strand of fibrous tissue that provides longitudinal support as a component of the coccygeal ligament.
In spinal segments that control the limbs.
Enlargements of the spinal cord occur.
In the spinal cord, white matter is organized into ascending and descending tracts grouping into.