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The anterior root is composed of nerve fibers responsible for motor activity (i.e. efferent nerve fibers that will stimulate muscles, etc.). I think some of the things it is composed of include:
Gamma motor neurons, alpha motor neurons, preganglionic autonomic neurons
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The anterior root of the spinal cord is composed of?
motor fibers
The anterior root and the posterior root fuse to form?
Each spinal nerve attaches to spinal cord by a ventral (anterior) root and a dorsal (posterior) root.All spinal nerves are mixed nerves (both motor and sensory).
What is located outside the brain and spinal cord?
anterior root
What is the difference between the dorsal root the ventral root and the dorsal root ganglion?
Ventral root is the ventral portion of spinal cord,there is no ganglion,cell body is of motor types ,cell info goes out of spinal cord of anterior horn. dorsal root is dorsal portion of spinal cord,it posses ganglion,cell body is of sensory types,information goes into spinal cord posterior horn
Where along a reflex arc would you find association neurons?
From the posterior root ganglion to the anterior horn of the spinal cord.
Where does synapses occur in the spinal cord?
Cell body of sensory neuron - in dorsal root ganglion. Cell body of motor neuron - in anterior gray horn.
At t10-T11 there is a central disc bulge which indents the anterior thecal sac and abuts the cord?
Herniated disks can compress the spinal cord as the nucleus pulposa pushes out forward (anteriolaterally) and can cause spinal root compression. This can lead to unilateral deficit causing weakness.
Structures form by the fusion on the anterior root and posterior nerve root?
Spinal nerve.....
Spinal cord flattened ventrally due to intermittent impingement?
Spinal Stenosis is a degenerative process on the spinal cord. Narrowing of the spinal canal begins to the flattened the spinal cord resulting in root nerve compression.
What is loss If the anterior root of a spinal nerve is severed?
The anterior or ventral roots carry motor or efferent information from motoneurons in the anterior horn to muscles. This is as opposed to the dorsal roots that convey sensory or afferent informaiton from the periphery to the dorsal horns of the spinal cord. This is not to be confused with ventral rami that subserve intrinsic muscles of the back and neck. Therefore if a ventral root is severed or cut there would be a loss on motor function to muscles in the distribution of that root (called a myotome).
Starting from the spinal cord trace a motor pathway to the adductor muscle of the thigh Include the spinal cord root spinal nerve nerve plexus and specific peripheral nerve involved in the pathway?
starting in the spinal cord, trace a motor pathway to the adductor muscles of the thigh. Include the spinal cord root, spinal nerve, nerve plexus, and specific peripheral nerve involved in the pathway
What part of the spinal cord contains neurons?
Motor neurons are located in the gray matter of the brain, and their axons stretch out to the spinal cord through the ventral root. they are located in the Ventral horn of the spinal cord,
