CD Questions-Nervous System II, Ch.9

CD Questions-Nervous System II, Ch.9 - Study Questions on...

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Study Questions on Anatomy Review: 1. (Page 1.) Neurons communicate with other cells at junctions called ______. a. neurotransmitters b. synapses c. autonomic nervous system 2. (Page 1.) Neurons form synapses with _______, ________, and ________ ________. a. muscles b. glands c. neurons d. glands, and other neurons e. muscles, glands, and other neurons 5. (Page 3.) A synapse between a somatic motor neuron and a skeletal muscle fiber is called a ________ ________. a. neuroglandular junction b. neuromuscular junction 6. (Page 3.) When an action potential arrives at a neuromuscular junction, it initiates a series of events which excite the underlying muscle fiber, causing it to ______. a. secrete b. contract c. relax 8. (Page 3.) Signals in the autonomic nervous system travel over a ____ _____ _____ to their effector organ. The second neuron, or autonomic motor neuron, contacts the organ. a. one neuron chain b. two neuron chain c. three neuron chain a. activate or deactivate it b. excite or inhibit it 13. (Page 3.) Signals from the central nervous system can cause glands to _______. a. stop secreting b. secrete 14. (Page 4.) In addition to sending signals to _______ _______, neurons send signals to each other. a. effector organs b. various tissues 19. (Page 5.) In the brain, a variety of synapses have evolved to serve complex transmission needs between neurons. Synapses located between axon terminals of one neuron and ______, ______, or ______ of another are most common. a. dendrites, dendrites, or axon b. dendrites, soma, or axon 21. (Page 6.) There are two major types of synapses, ________ and ________. 22. (Page 6.) Electrical synapses depolarize and generate action potentials simultaneously. When one neuron forms a gap junction with another neuron, an _________ _________ is made. a. chemical synapse b. electrical synapse 23. (Page 6.) Electrical current, in the form of ions, flows directly from one neuron to the other through the ______ _______ . a. tight junction b. gap junction 24. (Page 6.) Electrical synapses are always __________. a. inhibitory b. excitatory 25. (Page 6.) Electrical synapses have two advantages. List these advantages. 26. (Page 7.) At a chemical synapse, neuronal membranes are separated by a gap called the ______ _______.
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a. synaptic cleft b. presynaptic neuron c. postsynaptic neuron 27. (Page 7.) Electrical current cannot flow directly from one neuron to the other. A chemical, called a ____________, is released from the sending axon and carries the signal to the next neuron. a. synapse b. ion c. neurotransmitter 28. (Page 7.) Chemical synapses transmit signals more slowly than __________ ________ but the signal may be either ________ or __________, and the signal can be modified as it passes from one neuron to the next. a. electrical synapses, excitatory, inhibitory
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This note was uploaded on 04/07/2010 for the course BIOL 64235 taught by Professor Lindsay during the Spring '10 term at Golden West College.

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CD Questions-Nervous System II, Ch.9 - Study Questions on...

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