Homework Answers
Answer:
Correct Match:
1) The cell returns to resting potential ------------------Sodium and potassium get close
2) The cell depolarizes ------------------------------------- Neuron receives excitatory chemicals
3) The cell hyperpolarizes ----------------------------- neuron receive inhibitory chemicals
4) Sodium ions rush into the cell ---------------------- sodium gates open
5) Potassium ions rush out of the cell ----------------- potassium gates open
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If necessary, refer to Animation: Chemical Synapses. When an action potential reaches the axon terminal: sodium...
If necessary, refer to Animation: Chemical Synapses. When an action potential reaches the axon terminal: sodium ions are released from the axon terminal, enter the cell body of the postsynaptic neuron through its sodium channels, and may initiate an action potential in that neuron. neurotransmitter molecules are released from the axon terminal and bind to receptors on the postsynaptic neuron, causing either an inhibitory hyperpolarization or an excitatory depolarization. neurotransmitter molecules are released from the axon terminal, bind to and...
Ldlicu upon 16 What is the difference between a graded potential and an action potential? Where...
Ldlicu upon 16 What is the difference between a graded potential and an action potential? Where would a praded potential occur in the neuron? An action potential? 16. The most widely used inhibitory neurotransmitter is This neurotransmitter opens up ion channels in the postsynaptic membrane. Ions rush (in/out) and bring the cell (closer to/further from) threshold level. 17. Label the following diagram with these terms: depolarization, repolarization, hyperpolarization, Na gates open, Na' gates closed, K gates open, K' gates closed,...
Order the following events that occur in a neuron in response to a stimulus Sodium Potassium...
Order the following events that occur in a neuron in response
to a stimulus
Sodium Potassium Pumps and Potassium Leak Channels re-establish the resting potential Voltage Gated Potassium channels close The inside of the cell becomes more negative than the original resting potential V Voltage Gated Sodium channels open Sodium ions rush into the cell The inside of the cell becomes temporarily positive Votage Cated Potatalum channels open which causes potassium to flood out of the cell
Action Potential Action Potential (AP) arises in presynaptic neuron Travels to Causes End of presynaptic neuron...
Action Potential Action Potential (AP) arises in presynaptic neuron Travels to Causes End of presynaptic neuron Leads to 2 Located in Excitatory Postsynaptic Potential begins at 6 Cl-gates open I s When Causing Depolarization to +30mV next opening 10 Nonmyelinated axons Myelinated axons Current spreads through each segment Current spreads by---- 11 Action Potential Word Bank ŠMU Auso Neurotransmitters bind to receptors K+ gates Ca++ gates open Hyperpolarization Saltatory Release of Neurotransmitters Postsynaptic neuron Repolarization -55mV Na+ gates open Inhibitory...
need help In this 4 question please and thank you Question 10 (2 points) (True/false) During...
need help In this 4 question please and thank you
Question 10 (2 points) (True/false) During the rising phase of the action potential, the charge inside of the axon changes from negative to positive (depolarizes) True False Question 11 (2 points) (True/false) During the rising phase of the action potential, potassium channels (gates) open and allow the cell to depolarize. True False An interneuron OA) Receives excitatory or inhibitory inputs from other neurons and then can activate or not activate...
Question 4 2 pts During and action potential, sodium (Na+) rushes into the cell causing of...
Question 4 2 pts During and action potential, sodium (Na+) rushes into the cell causing of the cell. Then sodium channels close and potassium (K+) rushes out of the cell, causing of the cell. However, the potassium overshoots and causes Question 5 2 pts During the refractory period, the pumps Na+ ions out of the cell and K+ions into the cell, re-establishing the resting membrane potential and concentration gradient. Serotonin Acetylcholine Glutamate Endorphins Barbiturates GABA Dopamine Cocaine Sodium Potassium Calcium...
QUESTION 15 Place the following in the order of somatosensory information to the brain. The axons...
QUESTION 15 Place the following in the order of somatosensory information to the brain. The axons of a sensory neuron. The somatosensory cortex. The spinal cord Receptor cells in the finger, e.g. QUESTION 21 What does a neurotransmitter bind to once its been released from the presynaptic terminal? O A voltage-activated potassium channel. O A neurotransmitter receptor that can open a channel or cause a chain of chemical signals inside the cell. O Glutamate. O A voltage-activated calcium channel. QUESTION...
Neuron Signaling and Muscle Contraction 1) “Dissect” the various parts of an action potential by describing...
Neuron Signaling and Muscle Contraction 1) “Dissect” the various parts of an action potential by describing the status (active or nonactive) of the voltage-gated sodium channel, voltage-gated potassium channel, sodium/potassium pump, and overall voltage and/ or voltage range (in millivolts, or mV) for each of the following. A) Resting membrane (prior to the initiation of an action potential) B) just before threshold to just after threshold (Depolarization) C) Rising phase of the action potential D) Falling phase of the action...
D SCAN MATCHING 1. Depolarization 2. Action potential 3. Threshold 4. Repolarization 5. Relative refractory period...
D SCAN MATCHING 1. Depolarization 2. Action potential 3. Threshold 4. Repolarization 5. Relative refractory period 6. Absolute refractory period 7. Resting membrane potential 8. Continuous conduction 9. Saltatory conduction Choices A. a cell whose internal environment has an electrical charge equal to its external environment B. the process of a cell becoming positively charged C. the process of a cell becoming negatively charged D. an electrochemical change in the potential across a membrane that causes an electrical signal to...
change pas channels in the volta t ive protein to change shape. This A of the...
change pas channels in the volta t ive protein to change shape. This A of the S l e terminal siste oplasmic reticum calcio p r eneule warcoplasm reticulum sodium ions m o nster transverse tubules sarcolemma: calcium ions Saroplasmic reticum: triadsarcolemma: calcium ions sons bind to This causes a change in shape and exposing C D E Calcium vesicle tylcholine action potential Sodium sarcolemma calcium on myosin heads Sodium sacoplasmic reticulum calcium ions actin 15. An attaches to exposed...
Ldlicu upon 16 What is the difference between a graded potential and an action potential? Where would a praded potential occur in the neuron? An action potential? 16. The most widely used inhibitory neurotransmitter is This neurotransmitter opens up ion channels in the postsynaptic membrane. Ions rush (in/out) and bring the cell (closer to/further from) threshold level. 17. Label the following diagram with these terms: depolarization, repolarization, hyperpolarization, Na gates open, Na' gates closed, K gates open, K' gates closed,...
Order the following events that occur in a neuron in response
to a stimulus
Sodium Potassium Pumps and Potassium Leak Channels re-establish the resting potential Voltage Gated Potassium channels close The inside of the cell becomes more negative than the original resting potential V Voltage Gated Sodium channels open Sodium ions rush into the cell The inside of the cell becomes temporarily positive Votage Cated Potatalum channels open which causes potassium to flood out of the cell
Action Potential Action Potential (AP) arises in presynaptic neuron Travels to Causes End of presynaptic neuron Leads to 2 Located in Excitatory Postsynaptic Potential begins at 6 Cl-gates open I s When Causing Depolarization to +30mV next opening 10 Nonmyelinated axons Myelinated axons Current spreads through each segment Current spreads by---- 11 Action Potential Word Bank ŠMU Auso Neurotransmitters bind to receptors K+ gates Ca++ gates open Hyperpolarization Saltatory Release of Neurotransmitters Postsynaptic neuron Repolarization -55mV Na+ gates open Inhibitory...
need help In this 4 question please and thank you
Question 10 (2 points) (True/false) During the rising phase of the action potential, the charge inside of the axon changes from negative to positive (depolarizes) True False Question 11 (2 points) (True/false) During the rising phase of the action potential, potassium channels (gates) open and allow the cell to depolarize. True False An interneuron OA) Receives excitatory or inhibitory inputs from other neurons and then can activate or not activate...
Question 4 2 pts During and action potential, sodium (Na+) rushes into the cell causing of the cell. Then sodium channels close and potassium (K+) rushes out of the cell, causing of the cell. However, the potassium overshoots and causes Question 5 2 pts During the refractory period, the pumps Na+ ions out of the cell and K+ions into the cell, re-establishing the resting membrane potential and concentration gradient. Serotonin Acetylcholine Glutamate Endorphins Barbiturates GABA Dopamine Cocaine Sodium Potassium Calcium...
QUESTION 15 Place the following in the order of somatosensory information to the brain. The axons of a sensory neuron. The somatosensory cortex. The spinal cord Receptor cells in the finger, e.g. QUESTION 21 What does a neurotransmitter bind to once its been released from the presynaptic terminal? O A voltage-activated potassium channel. O A neurotransmitter receptor that can open a channel or cause a chain of chemical signals inside the cell. O Glutamate. O A voltage-activated calcium channel. QUESTION...
D SCAN MATCHING 1. Depolarization 2. Action potential 3. Threshold 4. Repolarization 5. Relative refractory period 6. Absolute refractory period 7. Resting membrane potential 8. Continuous conduction 9. Saltatory conduction Choices A. a cell whose internal environment has an electrical charge equal to its external environment B. the process of a cell becoming positively charged C. the process of a cell becoming negatively charged D. an electrochemical change in the potential across a membrane that causes an electrical signal to...
change pas channels in the volta t ive protein to change shape. This A of the S l e terminal siste oplasmic reticum calcio p r eneule warcoplasm reticulum sodium ions m o nster transverse tubules sarcolemma: calcium ions Saroplasmic reticum: triadsarcolemma: calcium ions sons bind to This causes a change in shape and exposing C D E Calcium vesicle tylcholine action potential Sodium sarcolemma calcium on myosin heads Sodium sacoplasmic reticulum calcium ions actin 15. An attaches to exposed...
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