ANATOMY & PHYSIOLOGY LL W/CONNECT ACCESS
4th Edition
ISBN: 9781265521363
Author: McKinley
Publisher: MCG
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Chapter 12, Problem 3DYKB
Summary Introduction
Introduction:
A neuron is a basic functional unit of the nervous system and is the specialized cells of the nervous system that makes a complex network for the transmission of the message. A neuron is made up of a cell body, nerve fibers: dendrites and an axon in its structure.
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Chapter 12 Solutions
ANATOMY & PHYSIOLOGY LL W/CONNECT ACCESS
Ch. 12.1 - Prob. 1WDYLCh. 12.1 - Prob. 2WDYLCh. 12.1 - Prob. 3WDYLCh. 12.2 - Prob. 4WDYLCh. 12.2 - Prob. 5WDYLCh. 12.2 - Prob. 6WDYLCh. 12.2 - Prob. 7WDYLCh. 12.2 - Prob. 8WDYLCh. 12.3 - Prob. 9WDYLCh. 12.4 - If a person has a brain tumor, is it more likely...
Ch. 12.4 - Prob. 11WDYLCh. 12.4 - Prob. 12WDYLCh. 12.4 - Prob. 13WDYLCh. 12.5 - Prob. 14WDYLCh. 12.5 - Prob. 15WDYLCh. 12.6 - Prob. 16WDYLCh. 12.6 - Prob. 17WDYLCh. 12.7 - Prob. 18WDYLCh. 12.7 - Prob. 19WDYLCh. 12.7 - Prob. 20WDYLCh. 12.8 - How are EPSP and IPSP graded potentials...Ch. 12.8 - Prob. 22WDYLCh. 12.8 - How does depolarization and repolarization occur...Ch. 12.8 - Prob. 24WDYLCh. 12.8 - Prob. 25WDYLCh. 12.9 - Prob. 26WDYLCh. 12.9 - Prob. 27WDYLCh. 12.9 - Prob. 28WDYLCh. 12.10 - Prob. 29WDYLCh. 12.10 - Prob. 30WDYLCh. 12.10 - Prob. 31WDYLCh. 12.11 - Prob. 32WDYLCh. 12.11 - Prob. 33WDYLCh. 12 - Prob. 1DYKBCh. 12 - Prob. 2DYKBCh. 12 - Prob. 3DYKBCh. 12 - Prob. 4DYKBCh. 12 - Prob. 5DYKBCh. 12 - Prob. 6DYKBCh. 12 - _____ 7. An action potential is generated when...Ch. 12 - Prob. 8DYKBCh. 12 - Prob. 9DYKBCh. 12 - Prob. 10DYKBCh. 12 - What are the four structural types of neurons? How...Ch. 12 - Prob. 12DYKBCh. 12 - How does myelination differ between the CNS and...Ch. 12 - Describe the procedure by which a PNS axon may...Ch. 12 - Prob. 15DYKBCh. 12 - Prob. 16DYKBCh. 12 - Explain summation of EPSPs and IPSPs and the...Ch. 12 - Graph and explain the events associated with an...Ch. 12 - Prob. 19DYKBCh. 12 - Prob. 20DYKBCh. 12 - Prob. 1CALCh. 12 - Prob. 2CALCh. 12 - Prob. 3CALCh. 12 - Prob. 4CALCh. 12 - Sarah wants to call her new friend Julie and needs...Ch. 12 - Over a period of 6 to 9 months, Marianne began to...Ch. 12 - Prob. 2CSLCh. 12 - Prob. 3CSL
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- Schwann cells have a function in the PNS that is similar to that of which cells in the CNS? Group of answer choices a.Oligodendrocytes b.Astrocytes c.Microglia d.Ependymal cellsarrow_forwarda. gray matter b. white matter c. myelinated fibers d. unmyelinated fibers e. nodes of Ranvier Match the description to the appropriate term. a. gray matter b. white matter c. myelinated fibers d. unmyelinated fibers e. nodes of Ranvier ____ 1. Contains myelinated fibers ____ 2. Contains neuron cell bodies and unmyelinated fibers ____ 3. Axons that are white in color and conduct nerve impulses faster ____ 4. Axons that are gray in color ____ 5. Gaps in the myelin sheatharrow_forward_____relay messages from the brain and spinal cord to muscles and glands. a. Motor neurons c. Interneurons b. Sensory neurons d. Neurogliaarrow_forward
- The _____ is a vertical sheet of white matter that bifurcates in its anterior portion and thus divides the gray matter of the thalamus into lateral, medial and anterior portions. a. Internal medullary lamina b. Intralaminar nucleus c. Fornix d. Reticular nucleusarrow_forwardWhat 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_forwardThe cells responsible for the transmission of the nerveimpulse are ________. a. neuronsb. oligodendrocytesc. astrocytesd. microgliaarrow_forward
- Mark the following statements as true of false. If a statement is false, correct it to make a true statement. a. Ependymal cells regulate the composition and movement of cerebrospinal fluid. b. Schwann cells make myelin in the peripheral nervous system c. Microglia are neuroglial cells with an immune function. d. Oligodendrocytes repair damaged axons in the peripheral nervous system. e. Astrocytes regulate the extracellular environment of the brain and are key components of the blood-brain barrier. f. Oligodendrocytes and Schwann cells perform similar functions in different parts of the nervous system.arrow_forwardNeurologist consulted an elderly patient with complaints about the difficulty of the neck movements, numbness and loss of the right hand sensation. Examination of the patient revealed a deformation of the spine in the lower cervical and upper thoracic part of the spinal cord caused by excessive deposition of calcium salts. What cells dysfunction influences the loss of sensitivity in the hand? a. The neurons of the spinal cord anterior horns b. Pyramidal neurons c. The neurons of the spinal cord lateral horns d. The neurons of the spinal cord posterior horns e. Pseudounipolar neuronsarrow_forwardLidocaine is an anesthetic that is used to prevent the propagation of action potentials. Which compartment would lidocaine MOST likely target? A. axon B. dendrite C. soma D. synaptic cleftarrow_forward
- The eye doctor uses an Acetylcholine-receptor blocker to maximally dilate the pupils; this allows the doctor to peer deep into the posterior eye-ball and observe the retina. Considering these facts, which nervous system is usually controlling the pupil diameter? (Which nervous system is “Acetylcholinergic"?) a. Somatosensory nervous system b. Sympathetic nervous system c. Reticular attenuating nervous system d. Parasympathetic nervous systemarrow_forwardA patient with poliomyelitis (which characterized by spinal cord damage) has disorder of skeletal muscles function. What neurons were destructed in this disorder? a. Pseudounipolar b. Pseudounipolar and associative (interneurons) c. Associative (interneurons) d. Motor neurons e. Interneurons and motorarrow_forwardSmall gaps in the myelin sheath where the axon is exposed to the extracellular environment are called A. nodes of Ranvier B.oligodendroglia C.neuroglia D. Schwann cells.arrow_forward
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