Podcast
Questions and Answers
What is the primary function of alpha motor neurons in muscle innervation?
What is the primary function of alpha motor neurons in muscle innervation?
- To cause force generation by muscle (correct)
- To innervate intrafusal fibers
- To transmit proprioceptive feedback
- To regulate muscle spindle sensitivity
What type of reflex is involved in withdrawing a limb from a painful stimulus?
What type of reflex is involved in withdrawing a limb from a painful stimulus?
- Crossed-extensor reflex
- Myotatic reflex
- Flexor reflex (correct)
- Reverse myotatic reflex
Which type of neuron is responsible for transmitting proprioceptive feedback from the muscle spindle?
Which type of neuron is responsible for transmitting proprioceptive feedback from the muscle spindle?
- Lower motor neurons
- Ia axons (correct)
- Gamma motor neurons
- Alpha motor neurons
What is the primary function of the crossed-extensor reflex?
What is the primary function of the crossed-extensor reflex?
What is the role of gamma motor neurons in muscle innervation?
What is the role of gamma motor neurons in muscle innervation?
Which type of neuron is responsible for transmitting signals from the central nervous system to lower motor neurons?
Which type of neuron is responsible for transmitting signals from the central nervous system to lower motor neurons?
What is the main function of the ventral horn in the spinal cord?
What is the main function of the ventral horn in the spinal cord?
Which type of muscle fiber is innervated by alpha motor neurons?
Which type of muscle fiber is innervated by alpha motor neurons?
What is the term for the group of muscle fibers innervated by a single alpha motor neuron?
What is the term for the group of muscle fibers innervated by a single alpha motor neuron?
How do alpha motor neurons increase muscle contraction?
How do alpha motor neurons increase muscle contraction?
What is the function of gamma motor neurons?
What is the function of gamma motor neurons?
Which type of proprioceptor measures muscle tension?
Which type of proprioceptor measures muscle tension?
What is the name of the reflex that occurs when a muscle is stretched and contracts?
What is the name of the reflex that occurs when a muscle is stretched and contracts?
Which type of motor neuron is responsible for voluntary muscle movement?
Which type of motor neuron is responsible for voluntary muscle movement?
What is the term for the distribution of lower motor neurons in the spinal cord?
What is the term for the distribution of lower motor neurons in the spinal cord?
What is the name of the synapse between the alpha motor neuron and the muscle fiber?
What is the name of the synapse between the alpha motor neuron and the muscle fiber?
