Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 4CYR
Mark the following statements as true or false. If the statement is false, correct it to make it a true statement.
a. Aggregates of Golgi apparatus and lysosomes form dark-staining Nissl bodies within the cell body.
b. The axon contains a high density of ribosomes, rough endoplasmic reticulum, and Golgi apparatus.
c. Axons arise from the axon hillock.
d. Substances can move toward or away from the cell body through the axon via fast axonal transport.
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Chapter 11 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 11.1 - What are the organs of the CNS?Ch. 11.1 - Prob. 2QCCh. 11.1 - Describe the sensory, integrative, and motor...Ch. 11.1 - 4. What are the differences between the somatic...Ch. 11.1 - How does the somatic motor division of the PNS...Ch. 11.2 - What are the functions of the cell body,...Ch. 11.2 - What are the structural differences between...Ch. 11.2 - What are the functional differences between...Ch. 11.2 - What are the functions of astrocytes?Ch. 11.2 - Prob. 5QC
Ch. 11.2 - Prob. 6QCCh. 11.2 - 7. What is the function of the myelin sheath?
Ch. 11.2 - How does the myelin sheath differ in the CNS and...Ch. 11.2 - Are neurons more likely to regenerate in the CNS...Ch. 11.2 - Prob. 10QCCh. 11.3 - 1. What is the resting membrane potential?
Ch. 11.3 - In and around the axon, where is the higher...Ch. 11.3 - Prob. 3QCCh. 11.3 - 4. Define local potential. Why is it also called...Ch. 11.3 - Why are local potentials useful only for...Ch. 11.3 - What takes place during the depolarization phase...Ch. 11.3 - 7. What must be reached in order for...Ch. 11.3 - 8. What takes place during the repolarization and...Ch. 11.3 - 9. What are the absolute and relative refractory...Ch. 11.3 - 10. How do local potentials and action potentials...Ch. 11.3 - Which is useful for long-distance signaling, and...Ch. 11.3 - 12. How is an action potential propagated down an...Ch. 11.3 - Prob. 13QCCh. 11.4 - What are three locations where presynaptic axons...Ch. 11.4 - Define synaptic transmission.Ch. 11.4 - Prob. 3QCCh. 11.4 - How do the two types of postsynaptic potentials...Ch. 11.4 - Prob. 5QCCh. 11.4 - Prob. 6QCCh. 11.5 - Prob. 1QCCh. 11.5 - Prob. 2QCCh. 11.5 - Prob. 3QCCh. 11.5 - Prob. 4QCCh. 11.5 - Prob. 5QCCh. 11.5 - Prob. 6QCCh. 11.6 - 1. Why are neurons organized into neuronal...Ch. 11.6 - Prob. 2QCCh. 11.6 - 3. What mechanisms stabilize neural circuits?
Ch. 11 - Which of the following statements about the...Ch. 11 - 2. Regulation of heart rate, blood pressure, and...Ch. 11 - Match each type of neuroglial cell with its...Ch. 11 - 4. Mark the following statements as true or false....Ch. 11 - 5. An axon is best defined as a process that:
a....Ch. 11 - 6. Fill in the blanks: The myelinated segment of...Ch. 11 - 7. Fill in the blanks: The _______is the period of...Ch. 11 - 8. Which of the following statements best...Ch. 11 - 9. Identify the following as properties of...Ch. 11 - The trigger for exocytosis of synaptic vesicles...Ch. 11 - Match the following neurotransmitters with their...Ch. 11 - 12. Which of the following is not a method by...Ch. 11 - 13. A ________is characterized by multiple input...Ch. 11 - Mark the following statements as true or false. If...Ch. 11 - Sequence the following list of events of a...Ch. 11 - 16. Mark the following statements as true or...Ch. 11 - 1. A drug that blocks channels in neurons does so...Ch. 11 - Prob. 2CYUCh. 11 - Why must a cell body be intact for an axon to...Ch. 11 - 4. Explain how an action potential is propagated...Ch. 11 - Prob. 1AYKACh. 11 - 2. During a surgical procedure, an...Ch. 11 - Albert accidentally ingests the poison...Ch. 11 - 4. Albert, the patient in question 3, takes the...Ch. 11 - Predict the effect that tetrodotoxin would have on...Ch. 11 - Explain what would happen if depolarization of the...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- When an action potential arrives in an axon terminal, synaptic vesicles containing acetylcholine are released by: a. facilitated diffusion. b. osmosis. c. exocytosis. d. endocytosis.arrow_forwardA perturbation that alters the membrane potential at a site on a neuronal axon will pass to neighboring segments of the axon by... a. electronic spead b. active transport c. symport d. antiport e. facilitated diffusionarrow_forwardWhich of the following statements regarding polarized membranes is incorrect? a. There is a separation of the charge by a membrane, resulting in its ability to do work. b. An RMP of –60 mV indicates that there are more positive ions inside the axon than an RMP of –70 mV. c. A resting membrane potential (RMP) of –90 mV indicates the there are more positive ions inside the axon than an RMP of –70 mV. d. There is a difference in the charges found on the inside of the membrane to the outside.arrow_forward
- Schwann cells are a type of glial cell found in the nervous system. In addition to the conduction of nerve impulses, the outermost layer called neurilemma aids in nerve development and regeneration. Which of the following explains why the neurons in the brain cannot repair damage like the neurons in your hands or feet can? a. Neurons in the central nervous system lack neurilemma of Schwann cells. b. Neurons in the peripheral nervous system are surrounded by grey matter. c. Axons of the peripheral nervous system lack neurilemma of Schwann cells. d. Neurons in the central nervous system are surrounded by white matter.arrow_forwardIn a simple synapse, neurotransmitter chemicals are released by ---- Select one: A. the presynaptic membrane B. ducts on the smooth endoplasmic reticulum C. axon hillocks D. cell bodiesarrow_forwardFigure 2.9 shows synaptic connections to produce a cell that responds to “A or B” or “A and B.” Construct a diagram for a cell that responds to “A and B if not C.”arrow_forward
- structures in the following diagram of a neuron. ?arrow_forwardView an electron micrograph of a cross-section of a myelinated nerve fiber image below. The axon contains microtubules and neurofilaments, bounded by a plasma membrane known as the axolemma. Outside the plasma membrane of the axon is the myelin sheath, which is composed of the tightly wrapped plasma membrane of a Schwann cell. What aspects of the cells in this image react with the stain that makes them the deep, dark, black color, such as the multiple layers that are the myelin sheath?arrow_forwardWhich of the following is NOT an example of communication that happens from one neuron to another neuron? A. Endocrine signaling (ex. hormones secreted into the blood stream travel and bind to receptors on dstant cells). B. Retrograde neurotransmission (ex.the dendrite releases a neuroactive substance that binds to receptors on the axon terminal of a presynaptic neuron). C. Electrical communication via propagation of action potential from one node of ranvier to the next node of ranvier. D. Volume transmission (ex. neuropeptides diffuse away from the synapse and bind to receptors on adjacent cells) E. Electrical communication through gap junctions.arrow_forward
- Match the description with the statement that best describes the following regions synaptic knob axon hillock dendrites axon A. elongated projection that conducts electrical signals over long distances B. receives input from other neurons C. region of high denisty of voltage-gated channels, known as the trigger zone D. contains numerous vesicles containing neurotransmitterarrow_forwardRead the following statements (a) The resting nerve membrane is freely permeable to Na*, K* ions and negatively charged proteins. (b) The activity of Na* - K* pump is responsible for maintaining resting membrane potential. (c) The resting membrane is impermeable to negatively charged proteins present in the axoplasm. Choose the option representing correct statements. b only a and b b and c a, b and carrow_forwardWhich of the following statements does NOT correctly describe the repolarization of a neuron? a. The potassium channels are slower to open, allowing the potassium ions to leave after depolarization. b. The potassium ions leave the cell, thereby returning the neuron to its resting potential. c. The neuron becomes more polarized and more negatively charged than its original resting membrane potential. d. The sodium and potassium channels open, allowing the positive ions to move out of the cell.arrow_forward
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