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Question 3 1 pts Many nerves, for example, motor neurons used in muscle contraction, are wrapped...
Question 3 1 pts Many nerves, for example, motor neurons used in muscle contraction, are wrapped in myelin, a sheath of repeated units of lipid bilayers and proteins. The effect of myelin is to reduce the amount of ions leaking out the membrane, which therefore reduces the degree of amplification of a signal required during de- and repolarization, and, hence, increases the voltage signal speed. With regard to our model circuit, a myelinated axon simply can be represented by an...
Question 1 1 pts Using the data provided in the table below for an "average" axon,...
Question 1 1 pts Using the data provided in the table below for an "average" axon, we found in the previous lab and in the pre-lab questions for this lab) that the membrane resistance and membrane capacitance were about 44MS2 = 44 x 102 and 60pF = 60 x 10-12 F, respectively, for a membrane segment of length 0.73 mm. Typical values for a neuron under average conditions Axon radius (r) 5x10m Membrane thickness (1) 1x10 m Axoplasm resistivity (pa)...
Question 1 1 pts Using the data provided in the table below for an "average" axon,...
Question 1 1 pts Using the data provided in the table below for an "average" axon, we found in the previous lab and in the pre-lab questions for this lab) that the membrane resistance and membrane capacitance were about 44MN = 44 X 10612 and 60pF = 60 x 10-12 F, respectively, for a membrane segment of length 0.73 mm. Typical values for a neuron under average conditions Axon radius (1) 5x10m Membrane thickness (1) 1x10-6 m Axoplasm resistivity (pa)...
12:57 Exit D Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fas...
12:57 Exit D Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fast motor development (crawling, walking -- those toddlers can move!) as the speed of voltage pulses through their neurons increases with myelination of those nerve fibers. However, there are a number of neurodegenerative diseases, such as multiple sclerosis and Guillain- Barre syndrome (which they mention when you get your flu shot), in which demyelination (loss of the myelin sheath insulating the...
I ONLY NEED HELP WITH QUESTION 2. I JUST POST THE QUESTION 1 just in case...
I ONLY NEED HELP WITH QUESTION 2. I JUST POST THE QUESTION 1
just in case you need it. PLEASE HELP!!!! thank you so much
Question 1 1 pts Using the data provided in the table below for an "average" axon, we found in the previous lab and in the pre-lab questions for this lab) that the membrane resistance and membrane capacitance were about 44MN = 44 x 10Ⓡ12 and 60pF = 60 x 10-12 F. respectively, for a membrane...
Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's...
Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fast motor development (crawling, walking -- those toddlers can move!) as the speed of voltage pulses through their neurons increases with myelination of those nerve fibers. However, there are a number of neurodegenerative diseases, such as multiple sclerosis and Guillain-Barre syndrome (which they mention when you get your flu shot), in which demyelination (loss of the myelin sheath insulating the nerves) occurs. The effective...
Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fast motor develo...
Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fast motor development (crawling, walking -- those toddlers can move!) as the speed of voltage pulses through their neurons increases with myelination of those nerve fibers. However there are a number of neurodegenerative diseases, such as multiple sclerosis and Guillain- Barre syndrome (which they mention when you get your flu shot), in which demyelination (loss of the myelin sheath insulating the nerves) occurs. The...
The resistor-capacitor network model we developed in Lecture (see figure below where it is shown only...
The resistor-capacitor network model we developed in Lecture
(see figure below where it is shown only for the myelinated case)
for the transmission of signals in nerve axons can actually be
applied to both unmyelinated and myelinated nerve cells to estimate
the propagation speed of a nerve impulse. In the unmyelinated case
the 6-7 nm thick plasma membrane (the lipid bilayer) acts both as a
(very thin) dielectric layer forming a capacitor between the inside
of the axon and the...
The speed with which nerve impulses travel is determined in large part by the characteristic time...
The speed with which nerve impulses travel is determined in large part by the characteristic time constant τ=RC of the circuit formed by the resistivity of the axon and the capacitance of its wall. The resistance of a 1.00-mm-long segment of an axon is 26.5 MΩ. A) For nerve axons with no protective myelin sheath, the wall capacitance is about 3.24×10−10F for each segment of length L=1.00mm. Find the speed of the nerve impulses given by v=L/τ. B) Many axons...
Please help me solve this problem and show your work. Thank you! Problem 21.81 3 of...
Please help me solve this problem and show your work. Thank
you!
Problem 21.81 3 of 3 I Review The speed with which nerve impulses travel is determined in large part by the characteristic time constant T = RC of the circuit formed by the resistivity of the axon and the capacitance of its wall. The resistance of a 1.00-mm-long segment of an axon is 26.0 M92. Part A For nerve axons with no protective myelin sheath, the wall capacitance...
Question 3 1 pts Many nerves, for example, motor neurons used in muscle contraction, are wrapped in myelin, a sheath of repeated units of lipid bilayers and proteins. The effect of myelin is to reduce the amount of ions leaking out the membrane, which therefore reduces the degree of amplification of a signal required during de- and repolarization, and, hence, increases the voltage signal speed. With regard to our model circuit, a myelinated axon simply can be represented by an...
Question 1 1 pts Using the data provided in the table below for an "average" axon, we found in the previous lab and in the pre-lab questions for this lab) that the membrane resistance and membrane capacitance were about 44MS2 = 44 x 102 and 60pF = 60 x 10-12 F, respectively, for a membrane segment of length 0.73 mm. Typical values for a neuron under average conditions Axon radius (r) 5x10m Membrane thickness (1) 1x10 m Axoplasm resistivity (pa)...
Question 1 1 pts Using the data provided in the table below for an "average" axon, we found in the previous lab and in the pre-lab questions for this lab) that the membrane resistance and membrane capacitance were about 44MN = 44 X 10612 and 60pF = 60 x 10-12 F, respectively, for a membrane segment of length 0.73 mm. Typical values for a neuron under average conditions Axon radius (1) 5x10m Membrane thickness (1) 1x10-6 m Axoplasm resistivity (pa)...
12:57 Exit D Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fast motor development (crawling, walking -- those toddlers can move!) as the speed of voltage pulses through their neurons increases with myelination of those nerve fibers. However, there are a number of neurodegenerative diseases, such as multiple sclerosis and Guillain- Barre syndrome (which they mention when you get your flu shot), in which demyelination (loss of the myelin sheath insulating the...
I ONLY NEED HELP WITH QUESTION 2. I JUST POST THE QUESTION 1
just in case you need it. PLEASE HELP!!!! thank you so much
Question 1 1 pts Using the data provided in the table below for an "average" axon, we found in the previous lab and in the pre-lab questions for this lab) that the membrane resistance and membrane capacitance were about 44MN = 44 x 10Ⓡ12 and 60pF = 60 x 10-12 F. respectively, for a membrane...
Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fast motor development (crawling, walking -- those toddlers can move!) as the speed of voltage pulses through their neurons increases with myelination of those nerve fibers. However, there are a number of neurodegenerative diseases, such as multiple sclerosis and Guillain-Barre syndrome (which they mention when you get your flu shot), in which demyelination (loss of the myelin sheath insulating the nerves) occurs. The effective...
Question 5 1 pts Myelination occurs quickly in humans during infancy, leading, e.g., to a child's fast motor development (crawling, walking -- those toddlers can move!) as the speed of voltage pulses through their neurons increases with myelination of those nerve fibers. However there are a number of neurodegenerative diseases, such as multiple sclerosis and Guillain- Barre syndrome (which they mention when you get your flu shot), in which demyelination (loss of the myelin sheath insulating the nerves) occurs. The...
The resistor-capacitor network model we developed in Lecture
(see figure below where it is shown only for the myelinated case)
for the transmission of signals in nerve axons can actually be
applied to both unmyelinated and myelinated nerve cells to estimate
the propagation speed of a nerve impulse. In the unmyelinated case
the 6-7 nm thick plasma membrane (the lipid bilayer) acts both as a
(very thin) dielectric layer forming a capacitor between the inside
of the axon and the...
Please help me solve this problem and show your work. Thank
you!
Problem 21.81 3 of 3 I Review The speed with which nerve impulses travel is determined in large part by the characteristic time constant T = RC of the circuit formed by the resistivity of the axon and the capacitance of its wall. The resistance of a 1.00-mm-long segment of an axon is 26.0 M92. Part A For nerve axons with no protective myelin sheath, the wall capacitance...
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