Q. The olfactory area is found within the: occipital lobetemporal lobefrontal lobeparietal lobepyramidal tract Answer: temporal lobe

Q. Which of the following is the correct sequence in a typical reflex arc: effector, afferent neuron, integration centre, efferent neuron, receptorreceptor, afferent neuron, integration centre, efferent neuron, effectoreffector, efferent neuron, integration centre, afferent neuron, ...

Q. Which one of the following describes saltatory conduction: occurs only if the myelin sheath is continuousoccurs only if the nodes of Ranvier are lackingoccurs only in the absence of axon hillocksis faster than conduction on an unmyelinated fiberis slower than conduction on an unmyelinated ...

Q. The substance that is released at axonal endings to propagate a nervous impulse is called: an ionnerve gluea neurotransmitterthe sodium-potassium pumpan action potential Answer: a neurotransmitter

Q. The ability to respond to a stimulus is termed: polarizedirritabilitydepolarizedconductivityall-or-none response Answer: irritability

Q. An action potential: is essential for nerve impulse propagationinvolves the influx of negative ions to depolarize the membraneinvolves the outflux of negative ions to depolarize the membraneinvolves the outflux of positive ions to depolarize the membraneis initiated by potassium ion ...

Q. Impulse conduction is fastest in neurons that are: myelinatedunmyelinatedsensorymotorcerebral Answer: myelinated

Q. Immediately after an action potential is propagated, which one of the following ions rapidly diffuses out of the cell into the tissue fluid: sodiumchloridecalciumpotassiummagnesium Answer: potassium

Q. White matter refers to myelinated fibers in the? CNSPNSANSSNSboth ANS and SNS Answer: CNS

Q. Which of the following best describes the waxy-appearing material called myelin? an outermembrane on a neuroglial cella lipid-protein (lipoprotein) cell membrane on the outside of axonsa mass of white lipid material that surrounds the cell body of a neurona mass of white lipid material that ...