Chapter 13 Neuro: Spinal Cord

Complete the following statements using the appropriate technical term: The wasting away of muscle tissue secondary to damage to the lower motor neurons and/or subsequent loss of nerve supply (denervation) is called _______.

Complete the following statements using the appropriate technical term: The _______ reflex involves the withdrawal of a limb in response to painful stimuli with the simultaneous extension of the limb on the opposite side for stability.

Complete the following statements using the appropriate technical term: Located in specialized intrafusal fibers of skeletal muscle, the _______ are sensitive to changes in muscle length.

Complete the following statements using the appropriate technical term: The _______ junction is the area of synaptic connection between an axon terminal and skeletal muscle fibers.

Complete the following statements using the appropriate technical term: Using selective inhibitory and excitatory circuits, _______ ensures that when one muscle is contracting, its paired muscle is relaxed.

Complete the following statements using the appropriate technical term: A _______ reflex refers to skeletal muscle contraction resulting from passive or active stretching of the same muscle.

Complete the following statements using the appropriate technical term: Retraction of a limb by the flexions of multiple joints in response to a painful stimulus is a _______ reflex.

Complete the following statements using the appropriate technical term: The _______ muscles are under voluntary control.

As part of the LMN syndrome, hyporeflexia is marked by reduced or absent reflexes in a hypotonic muscle.

The degeneration of lateral and posterior spinal columns due to vitamin B12 deficiency is subacute combined degeneration of the spinal cord.