Q3 Quiz 5

Explain how the sensory tracts and the motor tracts help the spinal cord perform its function for the human body.

• Sensory tracts transmit signals from the body to the brain, while motor tracts carry signals from the brain to the body.

• Sensory tracts carry signals from the brain to the body, while motor tracts transmit signals from the body to the brain.

• Both sensory and motor tracts transmit signals from the brain to the body.

• Both sensory and motor tracts transmit signals from the body to the brain.

There are 5 basic structures for a reflex arc, especially a somatic reflex. List them in chronological order starting with the stimulus.

• Stimulus, Receptor, Sensory Neuron, Integration Center, Motor Neuron, Effector

• Stimulus, Sensory Neuron, Receptor, Integration Center, Motor Neuron, Effector

• Stimulus, Receptor, Sensory Neuron, Motor Neuron, Integration Center, Effector

• Stimulus, Receptor, Sensory Neuron, Integration Center, Motor Neuron, Effector

A famously inflexible person goes to perform a hamstring stretch. As they go deeper into the stretch, they feel a constant contraction of their hamstring muscles, making them "bounce" slightly preventing them from stretching further. What is the most likely stimulus causing this type of reflex?

• Force being acted on the tendons of hamstrings.

• Force being acted on the hamstring muscles.

• Stretch being acted on the quadriceps muscles.

• Stretch being acted on the quadriceps tendon.

Tags

NGSS.HS-LS1-3

While walking down the sidewalk along Monroe Blvd, a famously coordinated individual unknowingly comes upon a part of the sidewalk that is made uneven by years of tree root growth. As the person is walking, their right foot catches the sidewalk, stopping their foot. Before they are able to think, their right hip flexor muscle activates, bringing the knee up so the foot can clear the obstruction. At the same time, the left leg muscles coordinate to flex the hip and extend the knee in an attempt to balance themselves. Identify all of the terms associated with this situation.

• Monosynaptic innervation

• Ipsilateral reflex

• Spinal nerve reflex

• Contralateral reflex

• Polysynaptic innervation