According to its composition, which of the following tissues do you expect to have the shortest T1 relaxation time for a field strength of 1.5T? Order them on a slower to faster recovery scale. Argue your answer.  Grey matter  White matter Cerebrospinal fluid Fat

Q: When the membrane voltage shifts from the RMP to a more negative voltage; this is a_

A:

Q: Dr. Brainy decides to make a new cell that ONLY has one ion channel in its membrane. This channel is…

A: Based on the conditions, let's evaluate the potential outcomes: Membrane potential approaching 0 mV:…

Q: Which of the following would you predict would happen if you limited the amount of ATP to a neuron…

A: We have Na+/K+ ATPase channel that uses ATP to translocate 3 Na+ outside and 2 K+ outside which…

Q: You are recording the resting membrane potential from a neuron placed in a petri dish. The following…

A: The correct answer to this question is option C i.e. increase concentration of K+.

Q: Say if the following cells are excitable or not: 1. Neuron: 2. Skeletal muscle: 3. Skin: 4. Smooth…

A: Chemicals, cells, tissues, organs, organ systems, and organisms make up the human body's…

Q: Reorder the items below to correctly label each number in the diagram. 3 4 Membrane Potential (mV)…

A: Plasma membranes are peppered with a variety of ion channels made up of membrane proteins. Some of…

Q: Action potential ente from adjacent cell. 1 Ca2+ 2 K* 3 Na* Ca2+ ЕCF ATP NCX ICF 3 Na* RyR Ca2+…

A: The muscle contraction of myocardial cells is activated with the help of specific stimulus that…

Q: Electrophysiology of the Neuron Phase State of lon Channels Movement of lons Voltage Across Membrane…

A: Neuronal electrophysiology is the investigation and study of electrical properties of organic cells…

Q: Which of the following is one major difference? [Choose ] Only action potentials cause…

A: There is difference in the concentration of ions inside and outside the each cell of body and this…

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: Which of the following accurately describes neurons? (Select all that apply.) All neurons have four…

A: A typical neuron is made up of a cell body, which contains the nucleus and the surrounding…

Q: Put the events for action potential generation in a neuron in the correct order (From 1-9)

A: Action potential generation is a fundamental process in neurons, allowing them to transmit…

Q: From the time an action potential reaches the axon terminal of a motor neuron until cross bridge…

A: Muscle contraction happens when the sarcomeres are shortened, when the thick and thin fibers slip…

Q: Enteric glia (specialized macrophages) are in close proximity to neurons and outnumber neurons- O 4-…

A: The word “glia” is inferred from the Greek word “γλοια,” stick of the enteric anxious framework, and…

Q: Virtually all vertebrate cells, whether excitable or not, have a resting membrane potential (RMP).…

A: Resting membrane potential is the potential difference across the membrane. It is determined by…

Q: An axon has a membrane capacitance of 4 x 10 F and the membrane resistance of 2 KQ. If the speed of…

A: Introduction The part of a nerve cell (neuron) that transports nerve impulses away from the cell…

Q: An autonomic neuroeffector junction Has the same structure as a somatic motor neuroeffector…

A: Neuroeffector junction is a site where a motor neuron releases a neurotransmitter to affect a…

Q: - In terms of Na and K ion gradient /movement - what causes the action potential (positive charge…

A: The Na+ K+ ion gradient refers to the concentration difference of sodium (Na+) and potassium (K+)…

Q: Tetraethylammonia, a toxin that blocks potassium channels, will More than one answer may be…

A: Introduction : There are three phases of action potential. These are depolarisation, repolarisation…

Q: The following were extracellular recordings obtained from the giant nerve fibers of an earthworm…

A: The correct answer to this question is option A. To calculate the action potential conduction…

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: of the stages of an action potential, including a description of and explanation for the refractory…

A: The normal resting membrane potential is about -70 mv. The electric signals produced by the neuronal…

Q: At what time (in milliseconds) is the inside of the neuron the most positive and why?  Explain why…

A: The graph represents action potential in neuron.

Q: True or false: V1 simple cells receive input from layer 4C cells via excitatory receptors.

A: The correct response is True.

Q: The motor end plate is extensively folded to allow for greater number of what structure? Terminal…

A: Motor end plates are called Neuromuscular junctions, are specialized chemical synapses formed at the…

Q: eurons have a resting membrane potential of ___________________.   varying votage as type and…

A: The resting potential is mostly determined by the concentrations of the ions in the fluids on both…

Q: Membrane Potential (mV) -70 + 1 3 Time (ms) 1 Na* continues to rush into the cell E Excess…

A: The Na +K + pump is found in cell membrane of neurons as well as in other animal cells. It helps in…

Q: Match the stages of action potential with the appropriate image or description.   PICK AND MATCH…

A: Action potential is defined as the rapid depolarization and repolarization of the membrane…

Q: ATP is used to power the creation of a neuron's resting potential. True False

A: Resting potential of the neuron is -70 mV.

Q: Current pulse to presynaptic cell Voltage recorded in presynaptic cell Voltage recorded in…

A: A rapid, quick, reversible, and spreading shift in the potential of the resting membrane is referred…

Q: What property is responsible for the smaller steady state DVm in the postsynaptic cell compared to…

A: The electrical activity in a neuron is characterized by the difference between the resting membrane…

Q: Axons can be extremely long and winding. What structural property allows them to maintain the…

A: The structural and functional unit of the nervous system is called a neuron. A neuron is composed of…

Q: Which of the following statements are true with regards to the differences between a neuromuscular…

A: The following statements are true with regards to the differences between a neuromuscular junction…

Q: Reorder the items below to correctly label the numbers in the diagram. -55 2 Time (msec) | EPSPS,…

A: The signals are transmitted from one neuron to another through neurotransmitters. The…

Q: During the resting state, a neuron is: polarized with sodium ions outside the cell and potassium…

A: Introduction :  The fundamental component of the nervous system is the neuron. A cell body,…