437Which of the following answers correctly identifies the number showing the axon terminal in the diagram and gives the axon terminal function?Select one:a. 5; production of action potentialb. 1; production of action potentialO c. 5; production of serotonino d. 1; production of serotonin

Action potential is a process of sudden, rapid change in the resting potential across the membrane.…

Answered: 2 Which of the following answers…

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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1a) Glial fibrillary acidic protein (GFAP) is a structural protein that is normally expressed in ________ and ________, but not _______. Select one: a. Centralized glia, astrocytes, neurons b. Astrocytes, neurons, centralized glia c. Neurons, radial glia, astrocytes d. Neurons, astrocytes, radial glia e. Astrocytes, radial glia, neurons 1b) Because noggin, chordin, and follistatin all play a role in neural plate differentiation, there is _________ of gene effects. Select one: a. Redundancy b. Pleiotropy c. Silencing d. Automation e. Reluctancy
The membrane of a neuron is composed of __________ with __________ embedded in them. a. proteins; neurotransmitters b. lipids; proteins c. carbohydrates; purines d. benzene molecules; carbohydrates Which cell type sends out axons that become the optic nerve? a. bipolar b. ganglion c. horizontal d. amacrine
Using cable theory to describe axon conduction would tell us a. the larger the diameter of the axon the faster the propagation of the action potential b. the larger the diameter of the axon the slower the propagation of the action potential c. the smaller the diameter of the axon the faster the propagation of the action potential d. that having big axons is of no benefit and only takes up a lot of space e. the nervous system mainly has small axons because they are much faster than large ones
33) What part of a neuron is responsible for receiving information?a. Axon.b. Node of Ranvier.c. Dendrite.d. Myelin sheath.
A bundle of axons in the peripheral nervous system is called a: A. Neuron B. Ganglion 1 C. Tract
The morphological difference between bipolar neurons and unipolar neurons is_ and that determines how they are classified. a. the type of neurotransmitter they contain b. one is a Golgi Type I and the other is a Golgi Type II c. the number of axons that they have d. the number of different types of neurotransmitters they contain e. none of the above
Which of the following statements is FALSE? a. graded potentials can sum over time and space, action potential cannot b. action potentials have refractory periods, graded potentials do not c. action potentials are all-or-none, graded potentials are not d. graded potentials and action potentials are caused by ions moving through open channels e. all of the above statements are true (if all of the above are true this is the correct answer) ....
Neurotransmitters: a. Can only inhibit the postsynaptic cell b. Can be part of a process that regulates transcription and translation in the postsynaptic cell с. Are bound to their receptors forever, until the receptor is degraded and recycled. d. Can exit the presynaptic cell without assistance. e. Can only excite the postsynaptic cell Clathrin: Is embedded in the cell membrane of the synaptic terminal. a. b. Degrades vesicles for recycling and return to the axon hillock с. Mediates ALL endocytosis in the body, including the formation of vesicles in the synapse. d. Forms a coat of octagonal proteins. e. Helps the vesicle leave the pre-synaptic cell, and fuse to the membrane of the post-synaptic cell
There is a type of toxin found in the liver of the puffer fish that prevents the opening of voltage-gated Na+ channels in neurons. The effect of this toxin is to: Group of answer choices A. prevents the initiation of the action potential B. depolarizes the membrane potential and maintains it depolarized C. prolongs the return of the membrane potential to the resting level D. increases the duration of the action potential
Which of the following neuronal changes is associated with short term synaptic strength? O a. Changes in the size of neural spines o b. Changes in the shape of neural spines с. Increased production of neurotransmitter vesicles in the presynaptic cell o d. Increased buildup of Ca²+ in the terminal knob of the presynaptic axon О е. Increased expression of postsynaptic neurotransmitter receptors
Organophosphate pesticides inhibit the action of acetylcholinesterase. What effect does this have in the cell? Select one: a. It prevents synthesis of ACh in the presynaptic terminal causing less neurotransmitter release b. It prevents breakdown of ACh in the synapse causing increased activity at the postsynaptic cell c. It prevents reuptake of ACh into the presynaptic terminal causing increased activity at the postsynaptic cell d. It prevents binding of ACh on the postsynaptic cell causing less activity e. It prevents reuptake of ACh into the presynaptic terminal causing less neurotransmitter synthesis.
Axons found around the area indicated by the arrow in the figure above are myelinated by A. astrocytes B. dorsal root ganglion cells C. microglia D. oligodendrocytes E. Schwann cells

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2 Which of the following answers correctly identifies the number showing the axon terminal in the diagram and gives the axon terminal function? Select one: a. 5; production of action potential b. 1; production of action potential c. 5; production of serotonin d. 1; production of serotonin