AP Biology Chapters 48 and 49 Vocabulary Campbell Reece Biology 8th Edition Flashcards

Vocabulary from chapters 48 and 49 of Campbell Reece Biology 8th Edition for AP Biology.

139338286	Organization of Nervous System	CNS and PNS; PNS breaks into Sensory and Motor; Motor Breaks into Somatic and Autonomic Nervous Systems; Autonomic breaks into Sympathetic and Parasympathetic Nervous systems	1
139338287	Dendrites	Receive nerve impulses toward the cell body	2
139338288	Inter-neurons	Connect sensory and motor neurons; located in CNS	3
139338289	Reflex Arc	Consists of two or three neurons - a sensory and motor neuron, and sometimes an inter-neuron	4
139338290	Blood-brain barrier	Formed by specialized glial cells and lines capillaries in the CNS which restricts the passage of harmful chemicals from the blood into the CNS	5
139338291	Refractory Period	The lag time in which a neuron cannot fire because the neuron must reach -70 millivolts	6
139338292	Nodes of Ranvier	Gaps in myelin sheath in vertebrates	7
139338293	Salatory Conduction	When an action potential leaps from node to node which speeds up nerve impulses	8
139338294	Excitatory Postsynaptic Potential (EPSP)	When NA+ gates open and the membranes moves toward the threshold potential. An action potential is generated if this happens	9
139338295	Inhibitory Postsynaptic Potential	When K+ gates open and the membrane becomes more polarized. Generating an action potential in this cell is more difficult	10
139338296	Acetycholine	Found at neuromuscular junctions; stimulates muscles to contract	11
139338297	Neuromuscular Junctions	Gaps between motor neurons and muscle cells	12
139338298	Epinephrine, Norepinephrine, Dopamine, Serotonin	Derived from amino acids and are secreted into synapses between neurons	13
139338299	Gamma Aminobutyric Acid (GABA)	An inhibitory neurotransmitter among neurons in the brain	14