| A | B |
|---|
| Afferent Nerve Pathway | Ascending spinal cord. |
| Somnambulism | Sleepwalking |
| Efferent Nerve Pathway | Descending spinal cord. |
| Orientation | Perception of self in relation to the surrounding environment. |
| Perception | Person’s sense of understanding the world. |
| Sensation | Ability to receive and process stimuli received through the sensory organs. |
| Sensory Deficit | Change in the perception of sensory stimuli. |
| Sensory Deprivation | State of reduced sensory input from the internal or external environment, manifested by alterations in sensory perception. |
| Sensory Overload | Increased perception of the intensity of auditory and visual stimuli. |
| Sensory Perception | The ability to receive _____ impressions and, through cortical association, relate the stimuli to past experiences and to form an impression of the nature of the stimulus. |
| Biologic Clock | Endogenous mechanism capable of measuring time in a living organism. |
| Bruxism | Teeth grinding during sleep. |
| Circadian Rhythm | Bio _____ s that cycle on a daily basis. |
| Hypersomnia | Alteration in sleep pattern characterized by excessive sleep, especially in the daytime. |
| Hypnosis | State of heightened awareness and focused concentration. |
| Insomnia | Chronic inability to sleep; inadequate quality of sleep. |
| Narcolepsy | Sleep alteration characterized by sudden uncontrollable urges to fall asleep during the daytime. |
| Parasomnia | Sleep alteration resulting from activation of physiologic systems at inappropriate times during the sleep-wake cycle. |
| Sleep | State of altered consciousness during which an individual experiences fluctuations in level of consciousness, minimal physical activity, and a general slowing of the body’s physiologic processes. |
| Sleep Apnea | A syndrome in which breathing periodically ceases during sleep, often associated with heavy snoring. |
| Sleep Cycle | Sequence of _____ that begins with the four stages of no rapid eye movement (NREM) sleep, with a return to stages 3 then 2, then passage into the first rapid eye movement (REM) stage. |
| Sleep Deprivation | Prolonged inadequate quality and quantity of _____. |
| Cognition | Intellectual ability to think. |
