Answers To Review Questions Study Guide Graded A+

Describe the function of an Oligodendrocyte {Ans: They produce myelin in the CNS. This speeds up neural firing.}What is the cauda equina? {Ans: The cauda equina is a structure that is composed of parallel fibers that continue from the conus medullaris into the spinal canal.}If a neuron has a soma with a dendrite on one side and an axon on the other, what kind of neuron is it? {Ans: A neuron with a dendrite on one side and an axon on the other is a bipolar neuron.}A person has feeling from the deltoid and biceps brachii region but no feeling from the wrist extensors. Where on the spinal cord has injury occurred? {Ans: The break would probably be between C6 and C7. The axillary nerve that takes sensation from the deltoid region is found at C6 while the radial nerve enters around C7.}A spinal nerve belongs to what division of the nervous system? {Ans: The Peripheral Nervous System}What is a mixed nerve? {Ans: A mixed nerve is one that carries both sensory and motor information.}