Study Guide Test 2

Study Guide Test 2 - StudyGuideTest2 Chapter2

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Study Guide Test 2 Chapter 2 A.) Sympathetic Nervous System/ Parasympathetic Nervous System -Sympathetic -mobilizes your body for fight or flight (stress and danger) -increasing heart rate, enlarged pupils, release glucose, etc. -Parasympathetic -slows the process of sympathetic nervous system -constricts pupils, slows heart rate, etc. B.)Autonomic Nervous System -affects organs and glands to regulate body functions -runs without awareness (involuntary) Ex: breathing, blood flow, etc. C.) Somatic Nervous System -nerves connect receptors to the spinal cord and the brain   **Afferent nerves- carry info from brain and spinal cord **Efferent nerves-carry info from brain and spinal cord to muscles -voluntary system—left leg, move arm, etc. D.) Reflex -automatic behavior in response to a specific stimulus -when the information does not travel to the brain and goes to the spinal  cord E.) Endocrine System -Pineal Gland - melatonin  (regulating sleep and wake cycle) -Pancreas  -secretes  insulin   (cells require insulin to regulate glucose) -too little sugar you are hypoglycemic) -Hypothalamus -aggression, feelings, sexual activity, and hunger -Pituitary (master gland) -releases  somatotropin  (growth hormone) to bones and muscles -stimulate the thyroid gland - adrenocortocotropic (ACTH) – learning and memory
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-secretes  thyroxine  (regulates growth and metabolic rates) -activated by pituitary thyroid stimulating hormone  -Hypothyroidism (dwarf)- hyperthyroidism (crazy, wild, hyper) -Gonads -ovaries in women, testies in men -sex hormone (women=estrogen, men=androgen) -Adrenal Gland -releases epinephrine (adrenalin) and Norepinephrine(noradrenalin) -increases mental alertness F.) Information sent through neurons - -dendrites- receive information or signals from receptors -soma (cell body)- contains genetic material and metabolic energy -axons- transmits electrical signals to other neurons/muscles/glands -terminal buttons-places that store neurotransmitters G.)Neurotransmitters and Functions    *excitation (neuron that is receiving the neurotransmitter becomes likely to  transmit the message to succeeding neurons)    *inhibition (neuron receives less neurotransmitters and becomes less likely to  transmit the message to succeeding neurons)  Neurotransmitter Function Other *Dopamine Arousal levels, motor  movement  (Parkinson’s disease low) Cause of addictions  Rewards and  Punishment *Serotonin Weight Regulation, sleep,  depression, suicide,  OCD, aggression
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This note was uploaded on 04/04/2011 for the course PSYCH 101 taught by Professor Sabin during the Fall '09 term at Saint Louis.

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Study Guide Test 2 - StudyGuideTest2 Chapter2

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