Choose the item in column 2 that best matches each item in column 1                                                                                              nodes of Ranvier                                                                                              resting membrane potential                                                                                              axon                                                                                              dendrite                                                                                              myelin sheath                                                                                              synapse                                                                                              nerve A. neuronal cell extension that propagates action potentials away from the cell body B. discontinuous insulation of an axon C. bundle of axons D. signaling junction between adjacent nerve cells E. gaps in the myelin sheath where electrical activity is concentrated F. excess of negative charge within the cell and excess of positive charge outside the cell G. neuronal cell extension that passively passes electrical signals toward the cell body

Q: Which of the following statements about membrane ion channels is incorrect? a. mechanically gated…

A: Ion channels are located in the membrane. They can be voltage-sensitive, ligand-gated, or…

Q: Rank the following neurons for their speed of conduction from fastest to slowest: Ranskik die…

A: Brain is the main center for receiving the impulses from different parts of the body and sending…

Q: Put the following in the correct order. A. Neurotransmitter release B. Ca2+ entry into the…

A: Nerve cells called neurons are responsible for sending instructions throughout your body to perform…

Q: Which of the following sentences is NOT correct? A. Axon can branch B. Afferent neurons are…

A: Axons can divide into many branches called telodendria. At the end of each telodendron is an axon…

Q: Match the description with the statement that best describes the following regions e dendrites +…

A: Neuron:

Q: Charge from depolarization along the axon reaches the axon terminal, but there is a lack of…

A: Neurotransmitters can be defined as a chemical molecules that are involved in the transmission of…

Q: A perturbation that alters the membrane potential at a site on a neuronal axon will pass to…

A: Ion transport through ion gated channels is an example of passive transport because energy is not…

Q: Which of these statements applies to the end plate potential? a. It occurs because of Na+ movement…

A: Introduction Endplate potentials (EPPs) are the voltage potential created at neuromuscular junctions…

Q: The exocytosis of the synaptic vesicles depends on:

A: Synapse is the junction between two neurons. It is formed between the dendrites of one neuron and…

Q: You are recording the electrical activity of a cell body with a resting membrane potential of -70…

A: Given; Resting membrane potential of the cell= -70mV No. of stimuli detected by the cell= 3 from…

Q: Action potentials are normally initiated at the axon hillock because a. there is a particularly high…

A: When the membrane potential of a given cell location rapidly rises and falls, an action potential…

Q: What guarantees that there are unidirectional action potentials? Choice A threshold  B.…

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: postsynaptic potential (EPSP) in it. O D. bind to neurotransmitter receptors on the postsynaptic…

A: Synapse is the area of the junction between the two Nerve cells in which the first nerve cell from…

Q: Which of the following is NOT an example of communication that happens from one neuron to another…

A: Answer: - Option a - Endocrine signalling (ex. hormones secreted into the bloodstream travel and…

Q: I. These forms the specialized junctions called synapse. A. Cell body B. Glial cells C. Synaptic…

A: Introduction :- The point of transmission of electric nerve impulses between two nerve cells…

Q: What is the conduction velocity of the action potentil in a myelinated axon of the nerve cell?

A: The conduction velocity is the speed in which electrochemical impulse propagates down a neural…

Q: In signal transduction in the dark, the cGMP plays what role? a. It promotes an action potential…

A: Cyclic GMP (cGMP) is "Guanosine monophosphate" in which the phosphate group is covalently linked to…

Q: Select one: a. increased amount of ATP b. movement of chlorine down its concentration gradient c.…

A: Introduction  Information is transmitted via neurons. They communicate between various brain regions…

Q: Select ALL statements that are TRUE regarding a drug that would inactivate the enzyme…

A: A drug that inactivates the enzyme called acetylcholinesterase is known as Acetylcholinesterase…

Q: Action potential conduction velocity is more rapid in a myelinated axon than an unmyelinated one…

A: The myelinated and unmyelinated nerve fibers are the two types of nerve fibers.  Myelin is a fatty…

Q: At a chemical synapse, an action potential triggers an influx of Ca2+ which . Select one: O A.…

A: When the action potential reaches the presynaptic neuron terminal, it activates the voltage-gated…

Q: Which of the following statements regarding polarized membranes is incorrect? a. There is a…

A: At rest, the ionic composition of the interior and outside of a neuronal membrane varies. As a…

Q: True or False a. When they are at rest, neurons are more positively charged inside than outside the…

A:

Q: Neurotransmitters are released from neurons due to the opening of ____________. Select one: a.…

A: Neuron is the sub unit of nervous system. It helps in coordinating the different body parts via…

Q: What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of…

A: Ans:- the option is (c)-the voltage gated sodium chennel.

Q: The two primary factors that influence the speed of an action potential propagation are axon…

A: The nervous system is an exceptionally complex piece of a creature that arranges its activities and…

Q: Depolarization and repolarization changes that occur during the action potential are produced by…

A: Introduction: Just neurons and muscle cells are fit for creating an action potential and that…

Q: In the hippocampus, when glutatmate is released into the synaptic cleft, but the postsynaptic cell…

A: Neurons are the basic structures and functional units of the nervous system. The axon or the…

Q: A local potential will only lead to an action potential if is reached O a. depolarization b. resting…

A: A sudden, rapid, transitory, and spreading change of resting membrane potential is an action…

Q: Myelinated and unmyelinated neurons requires _________ to propagate action potential down the axon.…

A: Neurons are the electrically excitable cell in our body which communicate with the other cell by a…

Q: In a chemical synapse,a. action potentials in the presynaptic terminal cause…

A: An electrical synapse can be described as a type of synapse that contains channel proteins…

Q: During the absolute refractory period (ARF) the voltage-gated sodium channels are mostly in their […

A: The absolute refractory period is the time following an action potential during which no additional…

Q: During the action potential, which of the following activity is LIKELY to occur? Select one: a. Na+…

A: An action potential (AP) occurs in physiology when the membrane potential of a given cell location…

Q: Using cable theory to describe axon conduction would tell us a. the larger the diameter of the axon…

A: In an ion cascades, action potentials move along neuronal axons. Transmembrane pathways near the…

Q: The is morphological difference between bipolar neurons and unipolar neurons and that determines how…

A: As you are reading this book, think about the organs that are functioning within you right now! Your…

Q: Neuron 1 fires an action potential, releasing neurotransmitters to neuron 2.  However, neuron 2 does…

A: The neurons are the nerve impulse generating and transmitting cells in the nervous system. The…

Q: Organophosphate pesticides inhibit the action of acetylcholinesterase. What effect does this have in…

A: Organophosphate pesticides (OP) are broad-spectrum chemical compounds comprised of a phosphate…

Q: nsulate parts of the neuron axon but not the cell ba are fatty menmbranes. are formed by glial…

A: Myelin sheaths are fatty tissue coverings that protect nerve cells. These cells are part of your…

Q: Which of the following is not correct about myelin sheaths? Select one O A. They are formed by glial…

A: The myelin sheath is the protective layer around the nerves. It acts as an electrical insulator and…

Q: Excitatory postsynaptic (EPSP'S) the resting membrane potentials A. have little or no effect b…

A: A current generated in our body in the membranes of the neuron cells. It is due to voltage…

Q: Use this illustration to place these events in the order they occur during synaptic communication:…

A: The above image shows the transmission of nerve impulses across a synapse. A synapse is a small…

Q: What are all the possible ways that a neurotransmitter is removed from the synaptic cleft? Select…

A: Neurotransmitters play a crucial role in transmitting signals across synapses in the nervous system.…

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.