Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 42, Problem 7U
The function of neuroglia is to
a. carry messages from the PNS to the CNS.
b. support and protect neurons.
c. stimulate muscle contraction.
d. store memories.
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Students have asked these similar questions
Match the types of neuroglia to their functions. (1) ependymal cells (2) oligodendrocytes (3) astrocytes (4) Schwann cells (5) microglial cells A. form a myelin sheath around peripheral nerves B. phagocytize cellular debris and bacteria C. line inner parts of ventricles and spinal cord D. form scar tissue and regulate ion and nutrient concentrations in the CNS E. form a myelin sheath around neurons in the CNS
Which of the following is not a way neuroglia cells help neurons?
A. Provide support and protection
B. Speed up electrical signals
C. Provide nutrients
D. Send electrical signals themselves
Match the neuroglia with the correct function:
A. Satellite cells
B. Schwann Cells
C. Oligodendrocytes
D. Ependymal
E. Microglia
F. Astrocytes
1. Cells that produce the myelin in the PNS.
2. Cells that produce myelin in the CNS
3. Phagocytes that dispose debris like dead brain cells and bacteria
4. Anchors and braces neurons with cellular projections
5. Cells have cilia that help circulate the cerebrospinal fluid
6. Cells help cushion and protect neurons in the PNS
7. Cells serve as a medium for diffusion between capillaries and neurons
8. Cells line cavities of the brain and spinal cord
Chapter 42 Solutions
Biology with Connect Access Card
Ch. 42 - Which of the following cavities would contain your...Ch. 42 - Epithelial tissues do all of the following except...Ch. 42 - Prob. 3UCh. 42 - Connective tissues include a diverse group of...Ch. 42 - Prob. 5UCh. 42 - Prob. 6UCh. 42 - The function of neuroglia is to a. carry messages...Ch. 42 - Skeletal muscle cells are a. large multinucleate...Ch. 42 - Connective tissues, although quite diverse in...Ch. 42 - Prob. 1A
Ch. 42 - Prob. 2ACh. 42 - Suppose that an alien virus arrives on Earth. This...Ch. 42 - Homeostasis a. is a dynamic process. b. describes...Ch. 42 - Prob. 5ACh. 42 - The three types of muscle all share a. a structure...Ch. 42 - Suppose that you discover a new disease that...Ch. 42 - Which organ systems are involved in regulation and...Ch. 42 - We have all experienced hunger pangs. Is hunger a...Ch. 42 - Why is homeostasis described as a dynamic process?...
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- The neuron cell is made up of which of the following parts? A. Axon B. Dendrite C. Nucleus D. All of the Abovearrow_forwardThe cells of neuroglia are formed from two sources: ectoderm and mesenchyme. What cells have the mesenchymal origin? a. Fibrillar astrocyte b. Microgliocytes c. Ependymal cell d. Oligodendrocyte e. Protoplasmic astrocytearrow_forward. Neurotransmitter substances are stored in vesicles located in specialized portions of thea. neuron cell body. c. dendrite.b. axon. d. postsynaptic membrane.arrow_forward
- What type of cells serve the needs of delicate neurons by bracing and protecting them? Are they capable of generating and transmitting nerve impulses? A. ganglia, no B. ganglia, yes C. neuroglia, yes D. neuroglia, no What type of cells myelinate the cytoplasmic extensions of neurons? A. oligodendrocytes and schwann cells B. microglial cells C. astrocytes D. ependymal cells Which structural classification of neurons has only one very short process that extends from the cell body and divides into peripheral and central processes? A. anaxonic neurons B. multipolar neurons C. unipolar neurons D. bipolar neuronsarrow_forwardIn the adult, neurons are an example of which of the following? A. Continuously dividing cells B. Labile cells C. Permanent cells D. Quiescent cells F. Stable cellsarrow_forwardMatch the neuron part on the left to its description on the right. (1) dendrite A. a cell process that sends information (2) axon B. one of usually several cell processes that receive information (3) cell body C. the rounded part of a neuronarrow_forward
- The part of a neuron that contains the nucleus is the a. cell body b. dendrite c. axon d. glialarrow_forwardDamage to neurons from Alzheimer's disease may prevent neurons from receiving signals from other neurons. Which of the following structures of a neuron is first affected by the damage? Select one: a. Axon b. Cell Body c. Axon Terminal d. Dendritesarrow_forwardA stimulus causes a change in permeability of neural membranes, which begins the process of transmitting an impulse. If the stimulus reaches the threshold potential of a neuron, an action potential is generated. Select the numbers of the statements below that occur once the threshold potential is reached. 1. Sodium ions flow into the neuron. 2. Sodium ions flow out of the neuron. 3. The membrane potential becomes positive. 4. The membrane potential becomes negative. 5. Voltage-gated potassium channels open. 6. Voltage-gated potassium channels close. 7. Potassium ions flow into the neuron. 8. Potassium ions flow out of the neuron. Place the numbers in order from the first event to the last event: andarrow_forward
- Damage to the axons in the spinal cord is typically permanent and debilitating. One promising avenue of treatment is transplanting certain cells into the spinal cord after injury. Which cell type is the best choice to help repair a severed axon? O a. Microglia O b. Inhibitory neurons Oc. Astrocytes O d. Schwann cells O e. Excitatory neurons O f. Oligodendrocytesarrow_forwardWhich of the following is true about the conduction of action potentials? a. Thicker axons are faster because there is more surface area on thicker axons. b. Myelin speeds conduction because the glial cells add voltage gated Na+ channels to the neuron. c. Diffusion of Na+ ions between the Nodes of Ranvier happens faster than the wave of opening and closing membrane proteins can travel. d. Neurons that don’t have myelin sheaths undergo saltatory conduction e. Action potentials move slowly.arrow_forwardThe cell body of a neuron does all of the following except a. release neurotransmitter into the synaptic cleft. b. produce synaptic vesicles containing neurotransmitter that are subsequently transported to the synaptic knob. c. conduct graded potentials to the initial segment. d. receive graded potentials from dendrites.arrow_forward
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