Final answer:
ROM and muscle length tests measure flexibility, while assessing posture and gait involves examining neuromuscular coordination. Motor exams test muscle strength and tone, providing insights into the functioning of the LMN and muscular health.
Step-by-step explanation:
Tests and measures of ROM (range of motion) including muscle length primarily assess flexibility. When testing posture and gait, one is looking at the neuromuscular coordination and balance that involve the spinocerebellum and the vestibulocerebellum. A motor exam may include assessing muscle strength by asking a patient to perform movements such as flexing and extending the neck or shrugging the shoulders against resistance. The observation of muscle tone, which is the slight contraction of fibers in resting skeletal muscle, can also inform about motor function. Deficits in muscle tone might suggest issues with lower motor neuron (LMN) function. Reflexes play a significant role in stability and are indicators of the functioning of the LMN as well.