front 1 All of the following might synapse with each other EXCEPT | back 1 Cell body with cell body. |
front 2 The number of processes extending from their cell body can classify neurons structurally. Which is the most common neuron type in humans? | back 2 Multipolar. |
front 3 Somatic sensory afferents transmit impulses from the _________to the CNS. | back 3 The skin. |
front 4 The interior of a nerve cell has a slight excess of negative charge because | back 4 potassium diffuses out of the cell. |
front 5 The Nissl bodies seen in the neuron cell body represents which cellular organelle? | back 5 Rough endoplasmic reticulum. |
front 6 Tracts in the CNS correspond to ____________ in the PNS. | back 6 nerves. |
front 7 Which of the following statements best describes the membrane situation in the resting state in the neuron? | back 7 All the voltage-gated Na+ and K+ channels are closed. |
front 8 Which of the following line the central cavities of the brain and spinal cord and provides a barrier between the CSF and nervous tissue? | back 8 Ependymal cells. |
front 9 Which of the following characteristics is NOT associated with a myelinated nerve fiber? | back 9 Slow conduction of nerve impulses. |
front 10 Which of the following events is NOT involved in the transfer of information across a chemical synapse? | back 10 Direct flow of ions from one neuron to the next. |
front 11 Which of the following electrical events occurs when a certain threshold is reached? | back 11 Action potential. |
front 12 Which of the following factors is associated with increased conduction velocity in an axon? | back 12 Large diameter. |
front 13 Which of the following is characteristic of the action of an IPSP but NOT in an EPSP? | back 13 Hyperpolarization is produced which spreads to the axon hillock. |
front 14 A potential -90 mV would be considered to be | back 14 hyperpolarized. |
front 15 During which phase of an action potential are voltage-gated K+ channels open, while voltage gated Na+ channels are closed? | back 15 Repolarizing phase. |
front 16 Which of the following neurotransmitters acts as a natural opiate? | back 16 Endorphins |
front 17 Which of the following statements concerning developmental aspects of neurons is INCORRECT? | back 17 The adult number of neurons is the same as those originally formed during the embryonic period. |
front 18 Spatial summation occurs when | back 18 multiple local potentials occur at different places on the same cell at the same time. |
front 19 Which of the following statements concerning inhibitory synapses (IPSP) is correct? | back 19 Postsynaptic membrane becomes more permeable to potassium and chloride. |
front 20 Which of the following is NOT a biogenic amine neurotransmitter? | back 20 Acetylcholine. |
front 21 Which of the following neuroglia is most responsible for the blood-brain barrier? | back 21 Astrocytes. |
front 22 Which of the following types of neurons is found in the retina of the eye? | back 22 Bipolar. |
front 23 If you find these notecards helpful, please join Easy Notecards and create at least one notecard set to help out others. | back 23 Thanks. |