Unit 3A & 3B: Study Guide Compiled by your Table Captains Chapter 3A: The Neuron: Cell body-the cell life's support center Dendrites- received messages from other cells Axon- passes messages away from the cell body to other neurons, muscles, or glands Myelin Sheath- covers the axon of some neurons and helps speed neural impulses Terminal Branches- form junction with other cells neural impulses(action potential)-electrical signal traveling down the axon
-A resting potential cell is positively charged in the chemical "soup"-At action potential something triggers change to cause sodium inside the cell (It takes 40mv to cause a reaction). -At refractory period the cell is recharging
Neurotransmitters & Drugs ACh: Acetycholine -related to movement, learning and memory -most highly implicated in alzheimer's disease Drug: Curae(Antagonist) Drug: Black Widow Spider Venom(Agonist)
Endorphins:-pain control(body makes naturally)Drug: Morephine(Agonist) - heightens your pain threshold & perception of pain. because of this body stops making as many endorphins. Withdrawal is experienced as a result
Serotonin: -regulates mood, hunger, sleepLow levels-DepressionHigh levels-???Drug: Prozac(Agonist)
GABA:-keeps brain under control-anxiety(keeps anxiety down)-inhibitory neurotransmitterDrug: Alcohol(Agonist)
AP Psychology Ms. Berdelle Dopamine:-learning, attention, emotion(intense pleasure)High Levels:SchizophreniaLow Levels: Parkinsons DiseaseDrug: Thorazine(Antagonist)Drug: L-DOPA(Agonist)
The Nervous System Central Nervous System (CNS) – connects the brain and spinal cord; allows blood flow to sex organs; stimulates glucose release by liver (Interneurons) Peripheral Nervous System (PNS) – How the brain communicates with the body’s sensory receptors, muscles, and glands (Sensory neurons) Somatic Nervous System – (part of the PNS) controls voluntarily movement of our skeletal muscles (Motor neurons) Autonomic Nervous System – (part of the PNS) controls involuntarily action of our glands and muscles of our internal organs (glands, heartbeat, and digestion) Sympathetic Nervous System – (part of the Autonomic Nervous System) arouses and expends energy; accelerates heartbeat; dilates pupils; stimulates secretion of epinephrine and norepinephrine; relaxes bladder; stimulates gallbladder; stimulates ejaculation in males; inhibits digestion Parasympathetic Nervous System – (part of the Autonomic Nervous System) conserves energy as it calms your body; slows heartbeat; contracts bladder; contracts pupils; stimulates digestion Chapter 3B: The Brain Older Brain Thalamus: -sensory switchboard(except smell)
Cerebellum:-"little brain"-balance & coordination
Reticular Formation:-L hemisphere--->R side-R hemisphere--->L side-basic arousal (nonsexual)*if damaged=coma
Medulla:-heart & breathing*if damaged=death
Limbic System Amygdala: -"little almond" -intense emotion--->fear, aggression, empathy
Hypothalamus:-Fight-Flight-Feeding(hunger & thirst)-Sexual Behavior
Corpus Callosum:-connects R & L hemisphere of brain
Healing of Neuropathic Foot Ulcer using a Novel ‘Wound Boot’ (Kerraboot™) Leigh R1, Latif N1, Hollingsworth S2, Barker S2, Hurel SJ1 INITIAL MANAGEMENT OF PATIENT'S HEEL ULCERS Department of Diabetes1 and Surgery2, University College Hospitals, London,IV antibiotics (ceftazidime, flucloxacillin, ciprofloxacin, metronidazole)Wound care (dry dressings changed every 2 days) Abstr
Alcohol & Drug Questionnaire CLIENT : NAME ____________________________________ / M F / DOB __________ AGE ______ / HT ______ WT _____ / STATE ______ AMT. REQUESTED $ _______________ / MAX. ANNUAL PREMIUM $ ___________________ / TYPE OF INS. UL TERM YRS. LVL _______ TOBACCO USE NO YES, TYPE ______________________ / REPLACEMENT YES NO / CURRENT A