Consider the neuromuscular junction between a pre-synaptic neuron and the muscle around the eye. Which of...
Consider the neuromuscular junction between a pre-synaptic neuron and the muscle around the eye. Which of the following would be an effect of the Botox?
A. More acetylcholine in the synapse of the neuromuscular junction
B. Less acetylcholine in the synapse of the neuromuscular junction
Homework Answers
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Consider the neuromuscular junction between a pre-synaptic
neuron and the muscle around the eye. Which of...
Consider the neuromuscular junction between a pre-synaptic neuron and the diaphragm muscle. Acetylcholine is a neurotransmitter...
Consider the neuromuscular junction between a pre-synaptic neuron and the diaphragm muscle. Acetylcholine is a neurotransmitter that is released from the presynaptic neuron to induce muscle contraction in the post-synaptic muscle cell. Which of the following would be an effect of tetrodotoxin? A. More acetylcholine in the synapse of the neuromuscular junction with the diaphragm B. Less acetylcholine in the synapse of the neuromuscular junction with the diaphragm
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine...
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand- channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2+
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine...
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand-channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2 Ca2+
If you know that wrinkles are caused by muscle contractions around the eye, and you know...
If you know that wrinkles are caused by muscle contractions around the eye, and you know the effect of Botox on acetylcholine release (CQ3) and, therefore, muscle contraction (CQ4), what is the effect of Botox on wrinkles? A. Induces wrinkles by inducing acetylcholine release, and, therefore, contraction of muscles around the eye. B. Inhibits wrinkles by preventing acetylcholine release, and, therefore, preventing contraction of muscles around the eye.
Choc Muscle fiber nucleus Myofibrilot muscle fiber Figure 10.15. Details of the neuromuscular junction. Label the...
Choc Muscle fiber nucleus Myofibrilot muscle fiber Figure 10.15. Details of the neuromuscular junction. Label the structures labeled with capital letters. The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction. Put these events in chronological order by placing a l in the blank before the first event, etc. Refer back to Figure 10.15 for information. Acetylcholine diffuses across the synaptic cleft. Nerve impulse reaches the axon terminal. Synaptic vesicles release acetylcholine into the synaptic cleft....
Sequence of Events at the Neuromuscular Junction The site where a motor neuron excites a skeletal...
Sequence of Events at the Neuromuscular Junction The site where a motor neuron excites a skeletal muscle fiber is called the neuromuscular junction. This activity will test your understanding of the sequence of events that occur at the neuromuscular junction. Using the images for help, place in the correct order of occurrence from left to right the events that occur at the neuromuscular junction after the action potential reaches the axon terminal. Termination of Neural Transmission Which of the following...
Put these steps in neuromuscular junction synaptic transmission and excitation-contraction coupling in chronological order. A. Ryanodine...
Put these steps in neuromuscular junction synaptic transmission and excitation-contraction coupling in chronological order. A. Ryanodine receptors open B. Voltage-gated Na+ channels open in the muscle cell membrane near the neuromuscular junction C. Tropomyosin rotates into the groove of the thin filament (out of the way of the myosin binding site) D. Depolarization of motoneuron axon terminal E. Ca2+ dissociates from troponin F. [Ca2+] rises in the muscle cell cytoplasm G. An EPSP occurs in the muscle cell H. Myosin...
Chapters 6-8: Muscle and Neuromuscular Junction 1 Myofibrils A Excitatory transmitter that excites muscle fiber membrane...
Chapters 6-8: Muscle and Neuromuscular Junction 1 Myofibrils A Excitatory transmitter that excites muscle fiber membrane 2 Titin B Required to cause smooth muscle relaxation 3 Actin filaments C Thousands grouped together to form the muscle fiber 4 Tropomyosin D Nerve fiber sympase at muscle fiber 5 Sarcomere E Block active sites on actin filaments to block myosin attraction Acetylcholine F activates myosin cross-bridges in smooth muscle 7 Neuromuscular junction G Muscle sections between Z discs that individually contract 8...
FILL IN THE BLANK. 1. Type of summation occurring when numerous different pre-synaptic neurons release neurotransmitter...
FILL IN THE BLANK. 1. Type of summation occurring when numerous different pre-synaptic neurons release neurotransmitter simultaneously onto a synapse 2. Occurs due to an increase in membrane permeability to K 3. Receptors that provide the CNS with information about body position 4. Term relating to a conscious recognition of the position of body parts with respect to one another as well as recognition of limb movement rates Large cells filled with myelin which surround the axons of somatic motor...
You are hiking through the jungles of Central America and are hit in the thigh by...
You are hiking through the jungles of Central America and are hit in the thigh by a curare-poisoned dart arrow! Consider the neuromuscular junction of a pre-synaptic neuron and the quadriceps muscle of the thigh. Which of the following would be an effect of the curare? A. Muscle contraction of the quadriceps, leading to muscle cramping and inability to move B. Muscle paralysis of the quadriceps, leading to the inability to move
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand- channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2+
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand-channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2 Ca2+
Choc Muscle fiber nucleus Myofibrilot muscle fiber Figure 10.15. Details of the neuromuscular junction. Label the structures labeled with capital letters. The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction. Put these events in chronological order by placing a l in the blank before the first event, etc. Refer back to Figure 10.15 for information. Acetylcholine diffuses across the synaptic cleft. Nerve impulse reaches the axon terminal. Synaptic vesicles release acetylcholine into the synaptic cleft....
Sequence of Events at the Neuromuscular Junction The site where a motor neuron excites a skeletal muscle fiber is called the neuromuscular junction. This activity will test your understanding of the sequence of events that occur at the neuromuscular junction. Using the images for help, place in the correct order of occurrence from left to right the events that occur at the neuromuscular junction after the action potential reaches the axon terminal. Termination of Neural Transmission Which of the following...
Chapters 6-8: Muscle and Neuromuscular Junction 1 Myofibrils A Excitatory transmitter that excites muscle fiber membrane 2 Titin B Required to cause smooth muscle relaxation 3 Actin filaments C Thousands grouped together to form the muscle fiber 4 Tropomyosin D Nerve fiber sympase at muscle fiber 5 Sarcomere E Block active sites on actin filaments to block myosin attraction Acetylcholine F activates myosin cross-bridges in smooth muscle 7 Neuromuscular junction G Muscle sections between Z discs that individually contract 8...
FILL IN THE BLANK. 1. Type of summation occurring when numerous different pre-synaptic neurons release neurotransmitter simultaneously onto a synapse 2. Occurs due to an increase in membrane permeability to K 3. Receptors that provide the CNS with information about body position 4. Term relating to a conscious recognition of the position of body parts with respect to one another as well as recognition of limb movement rates Large cells filled with myelin which surround the axons of somatic motor...
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