Consciousness Flashcard 1

Front

internal cycle of biological activity

Back

biological rhythms

Front

awareness of internal and external stimuli

Back

consciousness

Front

state marked by relatively low levels of physical activity and reduced sensory awareness that is distinct from periods of rest that occur during wakefulness

Back

sleep

Front

characterized by high levels of sensory awareness, thought, and behavior

Back

consciousness

Front

tendency to maintain a balance, or optimal level, within a biological system

Back

homeostasis

Front

biological rhythm that occurs over approximately 24 hours

Back

circadian rhythm

Front

area of the hypothalamus in which the body’s biological clock is located

Back

suprachiasmatic nucleus

Front

brain’s control of switching between sleep and wakefulness as well as coordinating this cycle with the outside world

Back

sleep regulation

Front

endocrine structure located inside the brain that releases melatonin

Back

pineal gland

Front

hormone secreted by the endocrine gland that serves as an important regulator of the sleep-wake cycle

Back

melatonin