Science Olympiad Anatomy and Physiology Exam Questions And Answers

Science Olympiad Anatomy and Physiology Exam Questions And Answers Dendrite - answerReceive stimulus and carries it impulses toward the cell body. Cell Body with nucleus - answerFiber which carries impulses away from cell body schwann cell - answercells which produce myelain or fat layer in the PNS Myelin Sheath - answerLipid layer around the axon; which insulates the axon Node Ranvier - answerGaps or nodes in the myelin sheath impulse - answer-self propagating -mechanism, potassium and sodium pump synapse - answer-junction between neurons -the neurons do not actually tough at the synapse -neurotransmitters used to restart impulse in dendrite of 2nd neuron neurotransmitters - answer-chemicals in the junction which allow impulses to be started in the second neuron brain - answerknow these terms: -brain stem -diencephalon -cerebellem -cerebrum spine - answerknow these terms: -spinal cord lobes of the cerebrum - answerfrontal, parietal, temporal, occipital special regions (of the brain) - answerbroca's area, wernicke's area, limbic system brain waves patterns - beta - answer-concentration, arousal, alertness, cognition -higher levels associated with anxiety, diease, feelings of sparation, fight or flight brain waves patterns - alpha - answer-relaxation, superlearning, relaxed focus, light trance, increased serontonin production -pre-sleep, pre-walking drowsiness, mediation, beginning of access to unconscious mind brain waves patterns - theta - answer-dreaming sleep (REM sleep) -increased production pf catecholamines, increased creativity -integrative, emotional experiences, potential change in behavior, increased retention of learned material -hypnagogic imagery, trance, deep mediation, access to unconscious mind delta - answer-dreamless sleep -human growth hormone released -deep, trance-like, non-physical state, loss of body awareness -access to unconscious and "collective unconscious" mind, greatest "push" to brain when induced with Holosync cranial nerves - answer-12 pair -attached to undersurface of brain spinal nerves - answer-31 pair -attached to spinal cord autonomic nervous system - answer-regulates bodies involuntary responses -two divisions: --sympathetic (emergency response, fight or flight) --parasympathetic (normal everyday conditions) major sense organs - answer-visions (eye) -hearing (ear) -taste (taste receptors) -smell (olfactory system) -skin (hot, cold, pressure, pain) taste buds - answer-top of nasal cavity