Reflexes & Spinal Cord

What type of neuron is A?

• Sensory

• Inter

• Motor

What type of neuron is C?

• Sensory

• Inter

• Motor

Name an effector in this diagram.

• A

• B

• D

• E

• F

Which statement best describes a reflex?

• Slow response that you have to think about

• Rapid response to protect body from harm

What makes up the CNS

• brain and spinal cord
• brain and neurons
• brain
• spine and neurons

_____ neurons carry messages away from the central nervous system and out to muscles or glands. The RED neuron in diagram.

• sensory

• motor

• inter

• central

Which number represents the stimulus?

• 1

• 2

• 3

• 4

Which number represents the effector?

• 4

• 5

• 6

• 7

In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________

• Spinal cord, CNS

• CNS, muscle

• Spinal cord, muscle

• Muscle, CNS

What is a stimulus?

• A change in the environment that is detected by receptors

• A change in the environment that is detected by effectors

• A response to a change in the environment