题目内容（请给出正确答案）

[主观题]

The α motor neuron at the anerior horn of the spinal cord is the of the movement reflex.

A、effector

B、motor nuit

C、final common pathway

D、sensory receptor

E、center

提问人：网友xiefei1986 发布时间：2022-01-07

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更多“The α motor neuron at the aner…”相关的问题

第1题

Which stretch reflex processing route is true？

A、Sensory fiber→Sensory neuron→Spinal cord（gray matter)→Brain→Spinal cord（gray matter)→Motor neuron→Muscles

B、Sensory fiber→Sensory neuron→Spinal cord（gray matter)→Motor neuron→Muscles

C、Sensory fiber→Sensory neuron→Spinal cord（white matter)→Brain→Spinal cord（white matter)→Motor neuron→Muscles

D、Sensory fiber→Sensory neuron→Spinal cord（white matter)→Motor neuron→Muscles

点击查看答案

第2题

Motor unit is

A、a alpha motor neuron and the innervated muscle fibers

B、a motor neuron

C、a group of motor neurons with same function

D、a group of muscle fiber that involved in execution of a special movement.

E、a bundle of muscle fibers

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第3题

Which description is correct about the α motor neuron in anterior horn of the spinal cord.

A、final common pathway of the reflexive control of skeletal muscle contracton.

B、big α motor neuron compose the big motor unit.

C、small α motor neuron compose the smallmotor unit.

D、release glutamate at the presynaptic terminal.

E、firing at a relative high frequency.

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第4题

Which description is right about the gama motor neuron in the anterior horn of the spinal cord

A、regulate the sensitivity of the muscle spindle.

B、innervate the extrafugal fiber.

C、release glycine at the axon terminal.

D、low sensitivity comparted with α motor neuron.

E、antagonist of the α motor neuron

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第5题

____________carry messages from sensory receptors to the CNS, central nervous system

A、motor neuron

B、interneuron

C、sensory neuron

D、synapse

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第6题

The α motor neuron at the anerior horn of the spinal cord is the of the movement reflex.

A、final common pathway

B、effector

C、motor nuit

D、sensory receptor

E、center

点击查看答案

第7题

Which description is right about the gama motor neuron in the anterior horn of the spinal cord

A、innervate the extrafugal fiber.

B、release glycine at the axon terminal.

C、low sensitivity comparted with α motor neuron.

D、antagonist of the α motor neuron

E、regulate the sensitivity of the muscle spindle.

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第8题

excitation of γ motor neuron will induce

A、contraction of extrafusal fiber

B、relaxation of intrafusal fiber

C、increase of the sensitity of the sensory receptors in muscle spindle.

D、decrease of impulse on Ia afferent fiber.

E、decrease of the impulses of the α motor neuron.

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第9题

The functions of the signals that converge on the motor neuron in anterior horn of spinal cord include

A、to initiate the voluntary movement

B、to regulate the posture of the body

C、to coordinate the contration of the muscle to maintain the equilibrium and execute the fine movement

D、to inhibit the stretch reflex to protect the muscle from injury.

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第10题

The regulatory effect of CO2 on respiration is mainly through

A、stimulation of the lateral ventral surface of medulla.

B、directly stimulate the respiratory center

C、stimulate the penumotaxic center in the upper pons.

D、stimulate the motor neuron in the spinal cord.

E、stretch reflex.

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