1 3 Which of the following rows correctly identifies the synapse and the method of transmission a nerve impulse travels? Select one: a. Synapse Method of Transmission 1 Sodium and potassium ions b. Synapse Method of Transmission Sodium and potassium ions C. Synapse Method of Transmission 1 Neurotransmitters d. Synapse Method of Transmission Neurotransmitters

1 3 Which of the following rows correctly identifies the synapse and the method of transmission a nerve impulse travels? Select one: a. Synapse Method of Transmission 1 Sodium and potassium ions b. Synapse Method of Transmission Sodium and potassium ions C. Synapse Method of Transmission 1 Neurotransmitters d. Synapse Method of Transmission Neurotransmitters

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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T/F Axons entering the spinal cord contact only one neuron. Be able to explain the rationale for your answer.
Examine the graph below, and answer the questions that follow. a. Indicate the specific events that are occurring at 1, 2, 3, and 4. b. At which area of the graph are sodium ions rapidly entering the neuron? c. At which area of the graph are potassium ions rapidly leaving the neuron? At which area of the graph is the sodium ion concentration higher outside than inside the neuron? d. Membrane potential, V (mV) +50- -50- -70- -90- 0 1 1 2 3 Time (ms) 4 5 V₁ Vrest threshold
Studies have shown that individuals with attention deficit hyperactivity disorder (ADHD) may have lower than normal amounts of dopamine and norepinephrine excitatory neurotransmitters in their synapses. Methylphenidate is one of the drugs prescribed to individuals with ADHD. It prevents the reuptake of dopamine and norepinephrine neurotransmitters from the synapses, thereby keeping these neurotransmitters in the synapses longer. Which of the following rows correctly identify the effects of methylphenidate in individuals with ADHD? Select one: a. There is an increase in the permeability of the presynaptic neuron to potassium ions. b. There is a increase in the permeability of the postsynaptic neuron to potassium ions. c. There is an increase in the permeability of the presynaptic neuron to sodium ions. d. There is a increase in the permeability of the postsynaptic neuron to sodium ions.
What statement about synapse activity is false? A.The input of sodium ions by AMPA receptors is triggered by glutamate binding to the same receptors.B.Calcium entering the dendritic spine during synaptic transmission activates proteins that can potentiate synapse.C.Depolarization of the membrane caused by the arrival of calcium ions makes it possible to eject sodium blocking NMDA receptors.D.Glutamate can be released by the pre-synaptic button following the arrival of an action potential via the axon.
Your hand touches the surface of a hot stove. Without thinking, you immediately pull your hand away. The correct order of the components of the reflex arc that pulls your hand away is: a. sensory receptors → sensory neurons → motor neurons → interneurons → effectors b. effectors → sensory neurons → brain → motor neurons → sensory receptors c. motor neurons → effectors → brain → sensory neurons → interneurons d. sensory receptors → sensory neurons → interneurons → motor neurons → effectors
Sensory neurons transmit information towards the central nervous system. Which of the following is true concerning the movement of peripheral- information towards the central nervous system? A. Dendrites of the sensory neurons synapse with interneurons of the spinal cord. B. Axons of the sensory neurons synapse with motor neurons of the muscles involved in the spinal reflex. C. Axons of the motor neurons synapse with the interneurons of the spinal cord. D. Axons of the sensory neurons synapse with the interneurons of the spinal cord.
The following diagram represents a typical serotonergic synapse. Where, specifically, do antidepressants work (e.g. SSRI)? Neurotransmitter Neurotransmitter transporter Аxon Synaptic vesicle terminal Voltage- gated Ca?+ channel Synaptic cleft Receptor Postsynaptic density Dendrite Neurotransmitter Synaptic Vesicle Neurotransmitter transporter (aka Reuptake transporter) Receptor O All of the above
1 Which of the following rows correctly identifies the number that represents the location of the synapse, and the method of signal transmission across the synapse, respectively? a. Synapse Method of Transmission 1 Sodium and potassium ions b. Synapse Method of Transmission Neurotransmitters Synapse Method of Transmission 2 Sodium and potassium ions d. Synapse Method of Transmission 2 Neurotransmitters
What is/are true statements about Action Potentials? Select all that apply. Group of answer choices: A. action potentials propagate down axons B. nformation is coded through the frequency of action potentials C. action potentials are slower in myelinated axons D. action potentials vary depending on the strength of the stimulus
Catecholamine (Epinephrine)-blockers are often used as a treatment to dilate blood vessels and therefore decrease arterial blood pressure (as a treatment for hypertension). This fact is excellent evidence to prove that the nervous system normally controlling the diameter of the arterial blood vessels is the: a. Somatosensory nervous system b. Sympathetic nervous system c. Reticular attenuating nervous system d. Parasympathetic nervous system
The therapeutic effect of Aricept (generic donepezil) is due toA: binding of the drug to voltage-gated sodium channels.C: the drug producing an IPSP on the postsynaptic membrane.D: the drug causing the reuptake of acetylcholine at the synapse.E: the drug maintaining higher concentrations of acetylcholine at synapse
Please use arrows to Identify the following structures and label the illustrations below.- epineurium - perineurium- axonmyelin sheathnodes of Ranvier-fascicles of myelinated fibers