Question 1
Which of the following types of tissue is not an element in the neuron-to-muscle pathway?
- Connective neurons
- Sensory neurons
- Association neurons
- Motor neurons
- Effectors
Explanation: Sensory neurons respond to stimuli, such as pain. Association neurons receive signals from the sensory neurons and, on the basis of that input, activate motor neurons. Motor neurons activate muscles or glands. Effectors are the muscles or glands that perform the response directed by the nervous system.
Connective tissue consists of bone, cartilage, blood, and fat and is not involved in this process. Connective neurons is a misnomer. Interneurons, however, can be used to relay signals between sensory and motor neurons in the spinal cord.