Match the item with the most closely related item medulla oblongata a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

Match the item with the most closely related item somatic nervous system a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

What effect would be blocking calcium channels at a cholinergic synapse have on synapse function?

Match the item with the most closely related item cerebellum a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

Match the item with the most closely related item sympathetic division a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

Describe the general structure of a synapse.

Match the item with the most closely related item monosynaptic ref ex a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

Two axons are tested for propagation velocities. One carries action potentials at 50 meters per second, the other at 1 meter per second. Which axon is myelinated?

List the steps involved in the generation and propagation of an action potential.

Match the item with the most closely related item dura mater a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

Match the item with the most closely related item continuous propagation a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

What effect would be decreasing the concentration of extracellular potassium have on the membrane potential of a neuron?

Match the item with the most closely related item neuroglia a. cover CNS axons with myelin b. carry sensory information to the brain c. occurs along unmyelinated axons d. outermost covering of brain and spinal cord e. production of CSF f. supporting cells g. controls smooth and cardiac muscle, glands, and fat cells h. occurs along myelinated axons i. link between nervous and endocrine systems j. carry motor commands to spinal cord k. ef erent division of the PNS l. controls contractions of skeletal muscles m. masses of neuron cell bodies n. connects the brain to the spinal cord o. stretch ref ex p. af erent division of the PNS q. maintains muscle tone and posture r. “rest and digest” division s. opposing ef ects t. “fight or flight” division

Identify the two anatomical divisions of the nervous system.