Postsynaptic terminal - Study guides, Class notes & Summaries

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...

When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - ANSWER TRUE Briefly explain why the action potential flows only from the axon hillock to the terminal web. - ANSWER During the course of an action potential there is a refractory period that makes sure the action potential can't trigger backwards by the use of caps on gated sodium channels. The caps close and keeps the action potential flowing in one direction. How do the glial cells (i.e., m...

A&P Straighteline Final ACTUAL EXAM QUESTIONS AND REVISED CORRECT ANSWERS | UPDATED !! What is smooth muscle tone? Select one: a. can rapidly develop action potentials b. shallow invaginations of cell membrane c. relatively constant tension maintained for a period of time d. intracellular cytoskeleton e. enzyme that removes phosphate from myosin - ANSWER : c. relatively constant tension maintained for a period of time The sites where a chemical substance is transmitted from the ...

Portage Biod 152 module 1 exam this is a collection of cell bodies found in the peripheral nervous system ganglia This part of the autonomic system accelerates the heart beat and increases breathing rate. sympathetic nervous system the dorsal root of a nerve contains what type of neurons? sensory/ afferent this part of a neuron conducts nerve impulses towards the cell body dendrites A neuron going to the bicep of the forearm is part of the: central nervous system and autonomic nerv...

Test Bank to accompany Neuroscience, Sixth Edition Purves • Augustine • Fitzpatrick • Hall • LaMantia • Mooney • Platt • White Chapter 1: Studying the Nervous System Multiple Choice 1. Which part of DNA is transcribed into messenger RNA? a. Exon b. Intron c. Promoter d. Non-coding DNA e. Regulatory DNA Answer: a Textbook Reference: Genetics and Genomics Bloom’s Level: 2. Understanding 2. Genomics is the analysis of a. coding DNA sequences for a species. b. regulatory DNA sequence...

BIOL 3240 Exam 2 | Complete Solutions (Verified) The process whereby a neuron communicates with another cell, which can be another neuron or a muscle cell Synaptic transmission Who was the first person to coin the term "synapse?" Charles Sherrington The region between pre and post synaptic cells zone of apposition (chemical/electrical) synapses are used to generate rapid and stereotyped depolarizing signals Electrical (chemical/electrical) synapses are capable of variable signaling, mediat...

HUBS 191 Nervous System Latest Update 100% Solved Resting membrane potential -70mV Open Voltage gated ion channels are ? at -60mV Inactive Voltage gated ion channels are ? at+30mV Na+ Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ Intercellular fluid has a high ? concentration and is therefore slightly negative in comparison to the ECF Depolarisation The change from a negative resting potential to a positive action poten...

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...

Test Bank to accompany Neuroscience, Sixth Edition Purves • Augustine • Fitzpatrick • Hall • LaMantia • Mooney • Platt • White Chapter 1: Studying the Nervous System Multiple Choice 1. Which part of DNA is transcribed into messenger RNA? a. Exon b. Intron c. Promoter d. Non-coding DNA e. Regulatory DNA Answer: a Textbook Reference: Genetics and Genomics Bloom’s Level: 2. Understanding 2. Genomics is the analysis of a. coding DNA sequences for a species. b. regulatory DNA sequence...

Chapter 3: Biological Basis for Understanding Psychotropic Drugs MULTIPLE CHOICE 1) A client asks the nurse, “What are neurotransmitters? My doctor says they are at the root of my problem.” The best reply would be A. “You must feel relieved to know that your problem has a physical basis. B. “It is a rather high-level concept to explain. Perhaps you should ask the doctor to tell you more.” C. “Neurotransmitters are substances we eat daily that influence the...