Animation Quiz 43.4 Information Processing in the Spinal Cord

Which is a pathway that could be found in a reflex arc?

Sensory neuron, interneuron, motor neuron, muscle

A person with a spinal cord injury cannot voluntarily move their leg, yet a physician can elicit a jerking movement of the leg by gently tapping on the person’s knee. How can this be explained?

The part of the spinal cord involved in the neural circuitry that enables the leg to move is intact even though another region of the spinal cord is damaged.

Interneurons

Connect a sensory neuron and motor neuron & determine whether a particular motor neuron is excited or inhibited. (Both a and b)

Sensory axons enter the spinal cord through the

Dorsal roots