Woman was daignosed with motor neuron disease that stephen
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1. Wallerian Degeneration A) describes what happens to the axon when there is myelinopathy B) is a specific disease C) rarely occurs in response to traumatic injury to the axon D) None of the above 2. Explain in 3 sentences or less what is the difference between regeneration and denervation. 3. Explain in 2 sentences or less how a muscle fiber that lost its connection to a motor neuron could regain a connection to a motor neuron.
Description 1. Wallerian Degeneration A) describes what happens to the axon when there is myelinopathy B) is a specific disease C) rarely occurs in response to traumatic injury to the axon D) None of the above 2. Explain in 3 sentences or less what is the difference between regeneration and denervation. 3. Explain in 2 sentences or less how a muscle fiber that lost its connection to a motor neuron could regain a connection to a motor neuron.
Can anyone help me with my college anatomy class please?? Questions are on the bottom(ordering and some questions). IDENTIFY MOTOR PATHWAY COMPONENTS FROM CEREBRAL CORTEX ORIGIN KEY Motor Pathway Motor homunculus on Left Precentral Gyrus (Upper Motor Neurons) Axon of first neuron Second neuron skeletal muscles or nudlei of cranial nerves To skeletal mu scles tor nudei of cranial ves Decussation of fibers in the MEDULLA OBLONGATA Corticospinal tract To SPINAL CORD (Lower Motor Neuron) skeletal muscles Motor Pathway to...
Your doctor is testing your myotatic reflex by tapping on the tendon of the quadriceps muscle below the knee cap. Which of the following statements is the correct order of events? Action potentials in the alpha motor neuron, action potentials in the la sensory neuron, contraction of quadriceps muscle Action potentials in the la sensory axon, action potentials in the alpha motor neuron, contraction of quadriceps muscle Action potentials in the alpha motor neuron, contraction of quadriceps muscle, action potentials...
Question 16 (1 point) What is the best description of a tetanic contraction in a skeletal muscle cell? A single action potential in the motor neuron causes a sustained contraction Multiple action potentials in the motor neuron cause a sustained contraction. The action potential in the muscle cell is prolonged to last as long as the contraction Repeated action potentials from the motor neuron summate into a sustained depolarization of the motor end plate, causing a sustained contraction ( A...
Motor Units Physiology So that we don't smash an egg when we pick it up, motor units are generally recruited in which order: 1) motor units with the highest (more positive) threshold neuron and the fewest muscle fibers are generally recruited first 2) motor units with the highest (more positive) threshold neuron and the most muscle fibers are generally recruited first 3) motor units with the lowest (most negative) threshold neuron and the fewest muscle fibers are generally recruited first...
What are the differences and similarities between symptoms of an upper motor neuron lesion and a lower motor neuron lesion.
Question 31 A highly folded motor end plate would be typical of the: postsynaptic neuron axonal terminal of the motor neuron the sarcolemma of the muscle fiber
Muscle movement 1 pt Spinal cord Dorsal The image to the right depicts a motor neuron along with all of the muscle fibers it innervates. What is this called? Cell body of motor neuron Muscle fibers Ventral O Motor axon O Motor unit O Neuromuscular junction Muscle
1. The following figure shows that a sensory neuron detects the stimulation and sends a signal to a motor neuron. How does the sensory neuron pass a signal to the motor neuron? Start your answer from action potential propagation along the sensory axon. You want to include detailed steps of neurotransmitter release in your answer. (12 points) 2. What is the neurotransmitter used by the sensory neuron? (1 point) Sensory afferent Muscle sensory receptor Extensor muscle Motorefferent