Answer Happy

Which of the following statements is NOT true? Select one: a. The autonomic division of the PNS is also called the visceral nervous system. O b. The enteric nervous system is a network of neurons located in the digestive tract. O c. Electrical signals that release chemicals from a cell is unique to neurons. Od. The PNS consists of afferent and efferent neurons. e. All of these statements are true.

Neurons that lie entirely within the CNS are called Select one: O a. sensory neurons. O b. somatic motor neurons. Oc. efferent neurons. O d. interneurons. e. afferent neurons.

The conduction of an action potential along an axon Select one: O a. is faster for a strong stimulus than a weak one. O b. O C. O d. is faster in unmyelinated nerve fibers than in myelinated nerve fibers. decreases in amplitude as it is propagated along the axon. All of the above.

1 Information flow through the nervous system follows the same basic pattern of a reflex: stimulus - response. Which of the 1 sensor- input signal integrating center - output signal target following is a target of an efferent signal from the PNS? Select one: a. O C. - O b. smooth muscle O d. skeletal muscle cardiac muscle All of the above - 1

Which of the following glial cells become part of the blood-brain barrier? Select one: O a. O b. d. e. microglia ependymal cells satellite cells astrocytes Schwann cells

What is the function of the cerebrospinal fluid (CSF)? Select one: O a. O b. O C. O d. The buoyancy of the CSF reduces the weight of the brain. The CSF provides a route by which wastes can be removed from the CNS. The CSF provides protective padding for the brain. All of the above. None of the above.