1.directandindirect d-ligandbindstoprotein,protein channelopens in-ligandattachestoreceptor,activatesGprotein,gtp>adenolatcyclase,atp>cAMPopensproteinchannel 2.3classesneurotransmitters aminoacid:glycine,direct,spinalcord neuropeptide:endomorphines,indirect,hypothalamus purine:adenosine,indirect,cortex 3.presynapticinhi/fac pi:when ca2+is inhibited from gaba releases it lessens the amnt of neurotransmitters pf: when there is aninfluxof ca2+ the amnt of neurttransm is greater 4.spatial-many synapse temporal-onesynapse 6.plexus interwoven networkingofnerves 4componens: root,trunk,divisions,cords adv:overlappingfxn 7.spinalsegmentsbrachialplexus c4-c8,t1 1suprascapularc5-c6 subscapularis 2dorsalc5 thalamus 3longthoracicc5-c7omohyoid 4pectoralc5,t1 pectoralis 8.segmentslumbarplexus t12,l1-l4 1femoralthigh 2obtulatoradductorhips 3saphenous pectoralis all L2-l4 9.neuralcircuits 1convergance 2divergance 3serial 4parallel 5reverbation 10.m/umusclespindle fxmuscletone -intrafusualfibers-gamaefferents-sensoryneurons 11. meninges -pia mater(bottom) -subarachnoid (space) -arachnoid(middle) -dura (top) -epidura(space) ALLprotectCNS