Synaptic terminal - Study guides, Class notes & Summaries

Psychology Scientific study of human behavior and mental processes. Answers philosophical questions about human nature. Uses methods borrowed from other disciplines. Wilhelm Wundt German. Set up first psychology lab. Was a Structuralist. Studied how people sense and perceive world around them. Structualists Believed that consciousness was made of basic elements. combined in different ways to produce different perceptions. They wanted to discover the form or elements of menta...

NR546 Quiz reviews - Weekly Quiz review Propagation of an action potential to the axon terminal is mediated by voltage-sensitive sodium channels. Influx of sodium through voltage-sensitive sodium channels at the axon terminal leads to opening of voltage-sensitive calcium channels, also at the axon terminal. Influx of calcium through the open voltage sensitive calcium channels leads to docking of synaptic vesicles and secretion of neurotransmitter into the synapse.Agonists cause ligand-gate...

1. Which glial are responsible for maintaining the integrity of the extracellular fluid that surrounds neurons? A) Oligodendrocytes B) Astrocytes C) Microglial cells D) Stellate cells - B) Astrocytes 2. At what point do the sensory axons from the periphery enter the spinal cord? A) Central nuclei B) Ventral nuclei C) Dorsal root ganglia D) Ventral white matter - C) Dorsal root ganglia 3. Some neurons have long axons that stretch from one part of the CNS to another. What are these c...

Test Bank for Neuroscience 6th Edition by Dale Purves 3807, 9, 7225, 7 1: Studying the Nervous System 2: Electrical Signals of Nerve Cells 3: Voltage-Dependent Membrane Permeability 4: Ion Channels and Transporters 5: Synaptic Transmission 6: Neurotransmitters and Their Receptors 7: Molecular Signaling within Neurons 8: Synaptic Plasticity 9: The Somatosensory System: Touch and Proprioception 10: Pain 11: Vision: The Eye 12: Central Visual Pathways 13: The Auditory System 14: The Vestibular Syst...

Humor's Theory - Answer-Outdated theory trying to explain the function of the mind. States that bodily fluids affect human traits. Hydraulic Theories - Answer-Outdated theory trying to explain the function of the mind. States that the mind acts like a pressure system and pressure controls the mind's actions. Spiritual Theories - Answer-Are generally undeveloped theories of how the mind works that cannot be explained or proven yet. Camillo Golgi - Answer-Famous for staining patches of ski...

NSC EXAM #1 QUESTIONS & ANSWERS 2024/2025 the big picture of synaptic transmission - ANSWERSthumbtack causes mechanically-gated Na+ channels to open, sending an action potential down the axon using voltage-gated Na+/K+ channels, causing voltage-gated Ca2+ channels to open and activate snare proteins that bind synaptic vesicles to the membrane and causes release of NT importance of synapses - ANSWERSrich diversity allows for complex behavior; place where most psychoactive drugs act; defec...

A lesion to the left primary auditory cortex will not result in deafness in either ear. - TRUE A synapse occurs when ____ in the terminal boutin moves to the cell wall and releases ____ into the synaptic cleft. - Synaptic vesicles; Neurotransmitters Action potential's are initiated in the... - Axon hillock An action potential results from - Movement of ions across the cell membrane An involuntary response to some type of stimulus - Reflex Anterior cerebrum: - Rostral Anterior spinal cord...

How many synapses can each neuron make? correct answers As many as 100,00 synapses How many neurons are in the brain correct answers 85 billion neurons How do most of the neurons transmit information? correct answers Chemical signals with the aid of neurotransmitters Where are the neurotransmitters released from? correct answers Synaptic cleft How many neurotransmitters have been identified? correct answers Over 100 T/F Neurons have receptors for one type of neurotransmitter? corr...

3 steps of how the nervous system functions 1. Sense organs receive info 2. Brain and spinal cord process this info 3. Brain and spinal cord issue commands to muscles and gland cells synaptic delay time from the arrival of a signal at the axon terminal of a presynaptic cell to the beginning of an action potential in the postsynaptic cell 2 main division of the nervous system and organs of each Central Nervous System (brain and spinal cord) Peripheral nervous system (nerves and gan...

Afferent - Towards (towards the spinal cord) Efferent - Away From (away from the spinal cord) Which nerves are incapable of regeneration? - Neurons in the Central Nervous System (CNS) do not divide and injury causes permanent loss. Which injury to nerves has better outcomes? Crushed or Severed/Cut - Crushed nerves recover better How do peripheral nerves repair themselves? - Axonal Reaction Name 8 local changes that occur when an axon is severed - 1. Cut end retracts and the axolemma cove...