9/14

StudyBlue printing of 9/14 html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { margin: 0; padding: 0; border: 0; outline: 0; font-size: 100%; background: transparent; } body { line-height: 1; } blockquote, q { quotes: none; } blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; } /* remember to define focus styles! */ :focus { outline: 0; } /* remember to highlight inserts somehow! */ ins { text-decoration: none; } del { text-decoration: line-through; } /* tables still need 'cellspacing="0"' in the markup */ table { border-collapse: collapse; border-spacing: 0; } /* end RESET */ .header { min-width:800px; } .logo { padding:6px 20px 2px 20px; margin:0; font-size:25px; font-weight:bold; color:#808285; position:relative; border-bottom: 1px solid #c5c5c5; } .logo-blue { color:#70adc4; } .logo-desc { font-weight:normal; font-size:19px; color:#cccccc; margin-top:50px; position:absolute; display: none; } .back-button { position:absolute; top:20px; right:20px; font-size:13px; line-height:25px; color:rgb(0,175,225); font-weight:normal; } .back-button a { color:rgb(0,175,225); } .instructions { padding:0; margin:0; width:100%; position:relative; color:rgb(100,100,100); } .step-holder { border-left:1px solid #ededed; margin-left:20px; } .steps { padding:15px 0; float:left; width:24%; border-right:1px solid #ededed; text-align:center; } .steps-01 { } .steps-02 { } .steps-03 { } .steps-04 { } .label { padding:5px 10px; } .print-button { } .print-button a { background-color:rgb(0,175,225); color:white; line-height: 19px; padding:9px 8px 5px 30px; font-size:14px; text-decoration:none; background-image: url(images/printer.png); background-repeat: no-repeat; background-position: 7px 50%; -moz-border-radius: 5px; -webkit-border-radius: 5px; } .print-button a:hover { background-color:black; } .theNote .content { width: 8.0in !important; margin: 5px auto; padding:20px; background-color:white; } .theNote .header { border-bottom: 1px dashed #C8C8C8; font-size: 17px; padding: 0 0 10px; line-height: 19px; color: #00ADE1; min-width:500px; } .theNote .body { font-size: 14px; line-height: 19px; padding: 10px 0; } .theNote{ padding:6px 0; clear:both; background-color: rgb(200,200,200); } .theNote h3{ color: rgb(100,100,100); } .theNote h1, .theNote h3{ background-color:white; padding:2px 20px; width:8.0in !important; margin: 0 auto; font-size: 15px; } .theNote h1{ padding-top: 10px; font-size: 15px; } .theNote h1:first-child{ font-size: 20px; } .theNote h3 { font-size: 14px; font-weight: normal; } #options { border: 3px double #ccc; padding: 5px 12px; margin: 10px 50px 10px 20px; float: left; } #info { border-top: 1px solid #ccc; padding-top: 5px; font-style: italic; } li { margin: 5px 10px 5px 25px; } ul li { list-style: disc; } ol li { list-style: decimal; } img { border: 0; } table { clear: both; width: 100%; border: 1px solid #c5c5c5; border-width: 1px 0; margin: 0; page-break-after: always; } table#page { page-break-after: auto; } td { text-align: center; font-size: 12px; border-bottom: 1px dashed #c5c5c5; height: 1.75in; width: 50%; padding-left: 15px; } .leftside { border-right: 1px solid #cccccc; padding: 0 15px 0 0; } .bottom td { border-bottom: none; } .clearfix { clear:both; line-height:1px; height:1px; } img { max-width:80%; max-height:150px; margin:20px; } @media print {.header { display: none; } .content .header{ display:inherit; } table { border: 1px dashed #bbb; border-width: 1px 0; } .theNote{ background-color:white; } } Brain Neurons and neurotransmitters 3 types of neurons afferent neuron from fingertips or whatever to brain touch hot and the finger send message to brain efferent neurons from brain to body parts need to react the action of pulling the hand back interneurons back and forth between two parts of brain or specific body parts and they go boath ways what are the function of the various parts of the neuron cell body and nucleous dendrites the cell recieves info from other cells like a network huge and intertangles axon elongaded dendrite and wraped in insolation end of each axon has branches and at that end is a terminte button synapse space between the terminal button of one neuron and the dendrites cell sending info presynaptic neuron recieving info postsynaptic neuron How are messages transmitted through the nervous system resting potential negative 70 milables when gets a message the ion channels open and then positive ions enter through channel when the cell reaches 50 then it fires action potential when the cell fires all or none law this then causes the positive ions to be fired in a cell body to axon process like boom boom boom after you hit 50 its fire or nothing refractory period after the neuron fires it has a millsec or so it wont fire again speed of action potential the insolation on the axon the electronic activity jumps in the myelin sheath (fatty acid) etc. omega acid such as salmon the opening and closing ion channels in the body pumping those transmitters through the axon spaces to the next neuron neurotransmitters(in terminal button) step 1 presynaptic cell gets info step 2 releases step 3 action potential jumps down axon step 4 at terminal button dumps contents step 5 post synaptic picks up those neurotransmitters step 6 retake them release it mobilizies these vessiles like a capsule when the vessile reaches the cell wall then the vesicle it melts away andthe info is spilled into synapes receptor they are transmembrane half in the wall half out they can either fit like a key (neuron reuptake left over neuronic message after action potential is in the terminal button has the same receptors the presynaptic cell recapcilizes it specific neurotransmitters acetylcholine movement and sleep (muscles) dopamine primary reinforcing pleasure, happiness released during drug activities norepinephrine in brain fight or flight response focus on a task like survival (most times) shuts down parts of the brain that arent needed problems of high arousal nervous before an exam epinephrine body adrinal glands adraline muscles and organs we need to maximize energy sources shuts down other processes that your body doesnt need and says to send resources to other places like muscles serotonin moods depression meds use it glutamate primary excitatory transmitter memory and learning gaba primary inihibtor transmitter when released it tells the next cell to do nothing endorphins(class of transmitters) makes you happy reduces pain signals Brain 3 brain catogories Hindbrain oldest structures of the brain pons relays motor messages medulla heartbeat, breathing, blood pressure, swallowing and coughing spinal cord simple reflexes connects brain to peripheral reticular formation arousal cerebellum muscle tone and posture midbrain sustantia nigra unconscious motoe action Forbrain Thalamus like a switch board hypothalamus hunger thirst body temp helps contorols endocrince system (hormones) involved in emotions cerebral cortex corpus callosum limbic system memory emotional Cerebum largest structure in brain its function includes language, plannign logic outermost part is cortex corpus callosum connect two hemispheres and passes info between them cerebral cortex frontal lobe reasoning logic decison making one of first when u drink broca's area cant speak well temperal lobe by the temples Wermicke's area understandinng language (spoking) somatosensory lips feet hand legs get neurons send to motor cotrex who sends neurons to muscles