Nervous System: Cerebellum, Balance, Coordination, Reflexes, Quizzes of Biology

Download Nervous System: Cerebellum, Balance, Coordination, Reflexes and more Quizzes Biology in PDF only on Docsity! TERM 1 Cerebellum DEFINITION 1 -Structure on back of brainstem -COntrols coordinated movements and learned movements TERM 2 Balance DEFINITION 2 -Maintains balance and controls eye movements TERM 3 Coordination DEFINITION 3 -Connected to motor cortex, recieves "motor plan" -Afferent input gives current muscle position -Coordinates functions with aim, i.e movement matches motor plan -As practice occurs motor cortex, parietal lobe, and cerebellum takes over -Planning is reduced, inntiation of activity is faster and smoother input to cortex TERM 4 Intput to cortex DEFINITION 4 -Allows cortex to know current position and movement -- Cortex uses this information to plan future movements TERM 5 Brian Stem DEFINITION 5 -Medulla, pons, and midbrain -Interface between spinal cord and higher brain centers -Cranial nerves supply sensory and motor function to the head and neck -Different centers in brainstem control heart rate, breathing, and wakefullness TERM 6 Reticular Activating System DEFINITION 6 -RAS -neural net. , awareness of surroundings -Cortical, pain, auditory, pain, visual input -Output to cortex and thalamus - all cortex -COntrols conciousness/ sleep TERM 7 Sleep DEFINITION 7 -low frequency activity in hypothalamus and thalamus---> sleep -reason needed unknown TERM 8 EEG Patterns DEFINITION 8 -Slow wave patterns in EEG give slow wave sleep its name - EEG pattern during REM sleep is simmilar to being awake TERM 9 Slow wave sleep DEFINITION 9 -4 stages, each progressively deeper over about a 75 minute cycle -Carcadian rythm- increase in adenosine --> sleep - Caffine blocks adenosine response -Sleep factor: muranyl dipeptide --> strong sleep inducer TERM 10 Rapid Eye Movement: Paradoxical sleep DEFINITION 10 REM -15 minutes long and the end of a slow wave sleep - Paradoxiacal sleep- hard to awakin, most likely to awaken self -High cisual cortex, low frontal, high memory areas- dreams illogical -New synaptic contaces made--> increase in long term memroy