your parther to nd your lab partner have prepared a frog nerve for gatnering data on action potentiaiS. You connect an electronic stim ally increase the voltage until you see an action potential. Your partner says that the voltage knob is stuck and will not increase the voltage. To finally get an action tial, they begin to trouble shoot and instead of increasing the voltage, they begin to simulate the nerve over and over again and see an action potential. What type of nation is this describing? lator to the nerve and action potentials graded potentials spatial summation temporal summation threshold
Q: Transmission of the nerve signal across a synapse is accomplishedby thea. movement of Na+ and K+.b.…
A: Introduction Neuron/Nerve: A neuron is a single nerve cell which consists of central cell body,…
Q: A spider is crawling up a person's left leg. Describe the specific sensory pathway in the central…
A: The "nervous system", also known as the neural system, is a complicated network of neurons that are…
Q: A reflex action :-a- is a fast brief response to a sensory stimulusb- is involved in regulation of…
A: The nervous system is an intricate network of neurons that allows us to respond to sensory…
Q: Receptor adaptation results when:a. sensory neurons stop sending action potentialsb. a stimulus is…
A: Receptor adaptation refers to a gradual decrease in the stimulus-response of the body after constant…
Q: LA. Action potential +40 Falled Threshold -55 initiations Resting state -70 Stimulus t Refractory…
A: Generation of nerve impulse in nerve fibre depends on distribution of sodium and potassium in and…
Q: PA Tupnu u ow nh8 The jaom od Figure 38-10 Biology; Life on Earth, 8/e © 2008 Pearson Prentice Hall,…
A: When we feel pain, such as when we touch a hot stove, sensory receptors in our skin send a message…
Q: Whose job is it to carry nerve impulses away from a cell body in a neuron? аxons dendrites spinal…
A: The nervous system is composed mainly of neurons. Neurons are cells that carry impulses from the…
Q: The cerebellum ________.a. communicates with the rest of the CNSb. creates awareness of the body’s…
A: The cerebellum is one of the important parts of the hindbrain of all vertebrates. It is studied…
Q: Regeneration of a severed axon has a better chance forsuccess in the PNS than in the CNS. Why is…
A: The nervous system involved in the transmission of impulses from all parts of the body to the brain…
Q: ne: hey insulate portsi of the neuron axon but not the cell body and dendrites. ney increase the…
A: Myelin sheath is the covering around the nerve cells. It is very important as various diseases may…
Q: Fill in the blank: A reflex arc begins with the stimulation of a _______________________ at the end…
A: A reflex or reflex action is an involuntary movement in response to a stimulus. It is made possible…
Q: The rattlesnake alerts enemies to its presence with a rattle—aset of modified scales at the tip of…
A: Rattlesnake belongs to the phylum Chordata and kingdom Animalia. It belongs to the class Reptilia.…
Q: What are the similarities and differences of autonomic and somatic nervous system in terms of…
A: The control and coordination of the body in humans occur by two systems: the nervous system and the…
Q: Which of these would cause an axon to become more polarized? K* diffusing out of it. Na* diffusing…
A: Neurons are at a resting potential when they do not conduct nerve impulses. But when they do have to…
Q: The ___________________ provides electrical insulation that allows faster propagation of nerve…
A: Myelin sheath forms the insulating layer around neurons of brain and spinal cord. Myelinated axon is…
Q: Visit this site (http://openstaxcollege.org/l/neurolab)to see a virtual neurophysiology lab, and to…
A: The nervous system consists of nervous tissues. Neurons, also known as nerve cells are the…
Q: Wriich of the lollowing thuices correctly ills in the blanks? During repolarization, the sodium ions…
A: The process of generation of action potential is a complex process and it involves three main phases…
Q: Would it be possible to generate a single action potential immediately after adding a chemical that…
A: Sodium potassium pump is major electrogenic pump in animal. It carry out 3 sodium outside the cell…
Q: You are a neuroscientist and have been provided a sample of a new snake venom. You test its effect…
A: Introduction A neurotransmitter is a chemical messenger that transports, enhances, and balances…
Q: All afferent signals travel what direction? O None of these is correct O Toward a muscle Toward the…
A: All afferent signals travel towards central nervous system.
Q: What do graded and action potentials have in common? O Both cover great distances. O Both may be…
A: The membrane potential is a term used to describe the difference between the electric potential of…
Q: The conduction velocity in nerves is primarily dependent on the O localization of the Na+ / K+ pumps…
A: Nerve conduction velocity (CV) is an important aspect of nerve conduction studies. It is the speed…
Q: mulated an axon in its mi
A: When we stimulate the axon in the middle of axon rather than axon hillock the action potential…
Q: Which of the following describes the "peripheral nervous system"? The sensory cells and nerves…
A: The nervous system is made up of neurons or nerve cells. The network of neurons is very complex and…
Q: Comparing MRI and fMRI, which one(s) measure the responses of brain chemicals to a magnetic field?…
A: Medical imaging is a sort of imaging technique that is commonly used to show the condition of organs…
Q: All the EEG's of the humans have the 1 same: Exact frequencies Exact amplitude Lies in the same band…
A: EEG is the electroencephalogram which is the test helps in detecting the brain activities or…
Q: Crude touch is more effective than fine touch in evoking an emotional response because :-a- its…
A: Neurons, also known as nerve cells are the fundamental unit of brain and nervous system. Neurons are…
Q: You isolated a myelinated axon from a newly discovered species and made the following measurements:…
A: The length constant λ is a measure of how far the voltage travels down the axon before it decays to…
Q: Which of the following has the longest axons? O corpus callosum O peripheral nervous system O…
A: Axons are of two types, unmyelinated and myelinated axons. In unmyelinated action the action…
Q: What is the function of the axon? to receive information and information into the cell body to store…
A: The neuron is the functional unit of the nervous system. The neurons send and receive signals from…
Q: Peripheral nervous system (PNS) consists of nerves that lie outside the brain and spinal cord which…
A: The human nervous system is divided into 1) central nervous system (CNS) 2)…
Q: A. Which cranial nerve is it taking about both examples are for one nerve. (I have figured out the…
A: Push down on your shoulders with your hands and push back feeling the resistance in your shoulders:-…
Q: on that's unable to produce and release neurotransmitters. C that neuron still have an action…
A: Synapse will occur in two types: Electrical synapse: In this the signal is transmitted directly…
Q: the rising phase, which ion channel is responsible for action potential returning to its resting Vm,…
A: According to the question, we have to find out that after the rising phase, which ion channel is…
Q: Which of the following is true of nerve impulse conduction? O Saltatory conduction occurs on…
A: Introduction A nerve fiber is a long and a slender projection of the neuron. It conducts the…
Q: Which of the following would be least likely to cause the sympathetic nervous system to activate?…
A: sympathetic nervous system does accelerate heart rate, decrease motility, widen bronchial passages,…
Q: The short period of time when the nerve is not responsive to stimuli it’s termed the: A.…
A: Nerve has just two period Resting period and Refractory period. Resting period is the time when no…
Q: When stimulated by effective steady stimuli, sensory receptors :-a- continuously discharge…
A: Introduction Sensory receptors are those receptors which perceive the signals from the outer…
Q: is chemically A neuron cell body sends out a signal. The signal travels down the length of the and…
A: Ans – d) axon, synapse, dendrites Neuron or nerve cell is a crucial player in the activity of the…
Q: In a dramatic debate that helped to define neuroscience during the Victorian era, two researchers…
A: Neuroscience It is defined s the branch of science that studied the brain and its impact on…
Q: Short-term memory, like remembering a phone number, is stored as a Long Term Potentiation (LTP) of…
A: LTP is a long-term potentiation of the synapse. It means that on following the high-frequency…
Q: Why is the action potential conducted in only one direction in a neuron? Comments : Best of your…
A: What occurs while a neuron is at rest is described by the resting potential. When a neuron sends…
Q: Mammalian axon regrowth in the periphery is: Select one: O a associated with improved function after…
A: Answer :- Option (B) is correct. - Less likely than regrowth in the central nervous system.
Q: The part of the neuron that is usually a single lorg extension that conducts an impulse to a muscle…
A: Neuron is the nerve impulse producing and transmitting cells in the nervous system. They have the…
Q: DRAW IT The reflex that pulls your hand away when you prickyour finger on a sharp object relies on a…
A: Reflex action is a term that refers to a rapid, automatic unlearned response to any external…
Q: Sin Young incorrectly classified proprioception as general somatic motor because it refers to the…
A: Introduction: Proprioception is also explained as kinaesthesia. It is the sense of self-movement and…
Q: The routes nerve impulses from our senses. O A. thalamus O B. brain stem O C. hippocampus O D.…
A: The sensory neurons are carried to the sense organs once they receive impulses. These impulses are…
Q: Label on the diagram: 1. Muscle spindle 2. Sensory neuron 3. Soma of sensory neuron 4. Dorsal root…
A: Muscle stretch reflexes are involuntary and automatic muscle contractions in response to a slight…
Q: A reflex arc includes :-a- at least two sets of sequential neuronsb- at least two sequential sets of…
A: A reflex action is a type of an involuntary action or a rapid response to a stimulus which basically…
![You and your lab partner have prepared a frog nerve for gathering data on action potentials. You connect an electronic stimulator to the nerve and ask your partner to
gradually increase the voltage until you see an action potential. Your partner says that the voltage knob is stuck and will not increase the voltage. To finally get an action
potential, they begin to trouble shoot and instead of increasing the voltage, they begin to simulate the nerve over and over again and see an action potential. What type of
summation is this describing?
action potentials
graded potentials
spatial summation
temporal summation
O threshold](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F67365948-39ab-434a-aacf-cd60e1ade7b5%2F8770ae41-68c4-4a53-bb97-5ff15b0f8bb1%2Fcgsylb_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
- You are recording the resting membrane potential from a neuron placed in a petri dish. The following oscilloscope tracing shows the voltage measured when a microelectrode tip is placed just inside the axon. The solid line on the oscilloscope is obtained when the neuron is placed in a control solution containing 5mM K+ and 150 mM Na+. The solution is then changed and a second recording is made, shown by the dashed line on the tracing. You can reasonably conclude this new solution: a) has increased concentration of K+ b) has increased concentration of Na+ c) has decreased concentration of K+ d) has decreased concentration of Na+You are recording the resting membrane potential from a neuron placed in a petri dish. The following oscilloscope tracing shows the voltage measured when a microelectrode tip is placed just inside the axon. The solid line on the oscilloscope is obtained when the neuron is placed in a control solution containing 5mM K+ and 150 mM Na+. The solution is then changed and a second recording is made, shown by the dashed line on the tracing. You can reasonably conclude this new solution: Membrane Potential (mV) 989 20 -80 HORRETAN 0 1 2 3 4 5 6 7 8 9 10 Time (sec) has decreased concentration of K+ Ohas decreased concentration of Na+ has increased concentration of K+ 1. has increased concentration of Na+Applying a pressure stimulus to the fluid-filled capsule of an isolated Pacinian corpuscle causes a brief burst of action potentials in the afferent neuron, which ceases until the pressure is removed, at which time another brief burst of action potentials occurs. If an experimenter removes the capsule and applies pressure directly to the afferent neuron ending, action potentials are continuously fired during the stimulus. Explain these results in the context ofadaptation.
- In the laboratory, researchers can apply an electrical stimulus at any point along the axon, making action potentials travel in both directions from the point of stimulation. An action potential moving in the usual direction, away from the axon hillock, is said to be traveling in the orthodromic direction. An action potential traveling toward the axon hillock is traveling in the antidromic direction. If we started an orthodromic action potential at the axon hillock and an antidromic action potential at the opposite end of the axon, what would happen when they met at the center? Why?You have isolated a neurotoxin from a newly discovered snake species. When you administer the toxin to brain tissue, you can no longer record an excitatory postsynaptic potential after you experimentally stimulate the presynaptic neuron. a. Draw what the experimental setup would look like. Also include a picture of the recording you would get from the postsynaptic neuron after the presynaptic stimulation before and after the administration of the toxin. Label your figures completely and label all axes.You are recording from two neurons in order to characterize the synapse that connects them. When the presynaptic neuron (Neuron A) fires an action potential, the postsynaptic neuron (Neuron B) is rapidly depolarized. You suspect that the synapse is electrical, and carry out the following experiments to test your hypothesis. A. When you try the converse experiment, and fıre an action potential in the Neuron B, you see a depolarization in the Neuron A. Based on your understanding of the different kinds of synaptic transmission does this support your hypothesis?
- A voltmeter is used to measure the potential difference across a neuron’s membrane. A change in potential difference will occur when an action potential is generated. A neurologist uses a giant squid neuron to study the propagation of an action potential. She places two voltmeters on the axon membrane to measure the potential difference: one near the dendrite and the other at the axon terminal. A stimulus is then applied. Often, the stimulus is applied at one end of the neuron. In this experiment, the scientist decides to stimulate the middle of the neuron. Which statement describes what the scientist would observe at the voltmeters? Select one: a. Both voltmeters will indicate changes to the potential difference. b. No changes to the potential differences will be registered at the voltmeters. c. The voltmeter at the dendrite will indicate a change to the potential difference. d. The voltmeter at the axon terminal will indicate a change to the potential difference.A voltmeter is used to measure the potential difference across a neuron’s membrane. A change in potential difference will occur when an action potential is generated. A neurologist uses a giant squid neuron to study the propagation of an action potential. She places two voltmeters on the axon membrane to measure the potential difference: one near the dendrite and the other at the axon terminal. A stimulus is then applied. Often, the stimulus is applied at one end of the neuron. In this experiment, the scientist decides to stimulate the middle of the neuron. Which statement describes what the scientist would observe at the voltmeters? a. Both voltmeters will indicate changes to the potential difference. b. No changes to the potential differences will be registered at the voltmeters. c. The voltmeter at the dendrite will indicate a change to the potential difference. d. The voltmeter at the axon terminal will indicate a change to the potential difference.Summarize the steps in generating an action potential as a flowchart. You can make your flowchart on paper and take a picture of it, or make it electronically. Be sure you’ve included: the location in the neuron and components of the neuron involved, the types of cellular transport and ions involved, how action potentials can be stimulated and inhibited. you can get the information from this: https://youtu.be/HYLyhXRp298
- Using the neurons below, how can you decrease the connection strength (amplitude of EPSP) onto the test cell below? You can only change the properties of the blue neuron. How could you change the properties of the blue neuron to increase the connection strength onto the test cell? What type of plasticity is this? Now, briefly explain how the properties of synaptic plasticity could result in “learned” behaviors such as stopping at a stop sign while driving.You generate action potentials in a neuron bathed in solution in a petri dish by applying a threshold-level depolarizing stimulus near its axon hillock. If the solution surrounding the neuron contained 5mM K+, 150 mM Na+, and 0 mM Ca2+ which of the following would you expect? The neuron would not be able to propagate action potentials down the entire length of the axon The neuron would not release neurotransmitter from the axon terminal The neurons action potentials would have an unusually long duration The neuron would have a resting membrane potential of zeroBased on the graph, how soon could another action potential be easily initiated (at the end of the relative refractory period) after the first stimulus? (Base your answer to this question on the graph below depicting an action potential.) less than 0.5 msec 1 msec 2 msec 3 msec 4 msec
![Human Physiology: From Cells to Systems (MindTap …](https://www.bartleby.com/isbn_cover_images/9781285866932/9781285866932_smallCoverImage.gif)
![Human Physiology: From Cells to Systems (MindTap …](https://www.bartleby.com/isbn_cover_images/9781285866932/9781285866932_smallCoverImage.gif)