Chapter 02: Neurophysiology Logothetis: Local Anesthesia for the Dental Hygienist, 3rd Edition MULTIPLE CHOICE

Chapter 02: Neurophysiology Logothetis: Local Anesthesia for the Dental Hygienist, 3rd Edition MULTIPLE CHOICE 1. What are the nerves that conduct signals from sensory neurons to the spinal cord or brain called? a. Neurotransmitters b. Electrical synapses c. Afferent nerves d. Efferent nerves ANS: C The nerves that conduct signals from sensory neurons to the spinal cord or brain are called afferent nerves. Neurotransmitters are the endogenous chemicals that transmit signals from a neuron to a target cell across a synapse. Electrical synapses involve gap junctions that allow action potentials to move from cell to cell directly by allowing electrical current to flow between cells. Efferent nerves conduct signals away from the brain or spinal cord. DIF: Recall REF: 12 OBJ: 3 TOP: NBDHE, 2.0 Physiology 2. What are the endogenous chemicals that transmit signals from a neuron to a target cell across a synapse called? a. Neurotransmitters b. Electrical synapses c. Afferent nerves d. Efferent nerves ANS: A The endogenous chemicals that transmit signals from a neuron to a target cell across a synapse are called neurotransmitters. Electrical synapses involve gap junctions that allow action potentials to move from cell to cell directly by allowing electrical current to flow between cells. Afferent nerves conduct signals from sensory neurons to the spinal cord or brain. Efferent nerves conduct signals away from the brain or spinal cord. DIF: Recall REF: 23 OBJ: 7 TOP: NBDHE, 2.0 Physiology 3. What are the nerves that conduct signals away from the brain or spinal cord called? a. Neurotransmitters b. Electrical synapses c. Afferent nerves d. Efferent nerves ANS: D The nerves that conduct signals away from the brain or spinal cord are called efferent nerves. The endogenous chemicals that transmit signals from a neuron to a target cell across a synapse are called neurotransmitters. Electrical synapses involve gap junctions that allow action potentials to move from cell to cell directly by allowing electrical current to flow between cells. Afferent nerves conduct signals from sensory neurons to the spinal cord or brain. DOWNLOAD THE Test Bank for Local Anesthesia for the Dental Hygienist 3rd Edition Logothetis mynursytest.Chapter 02: Neurophysiology Logothetis: Local Anesthesia for the Dental Hygienist, 3rd Edition MULTIPLE CHOICE