Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 7CYR
First-order somatic sensory neurons are _______neurons whose cell bodies are located in the ________.
a. multipolar, posterior horn
b. pseudounipolar, posterior root ganglion
c. bipolar, anterior horn
d. pseudounipolar, posterior horn
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a. 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 sheath
Most sensory neurons are:
Select one:
a. Multipolar and unipolar
neurons
b. Unipolar neurons
c. Mutlipolar neurons
d. Bipolar neurons
The darker area that surrounds the outer most part or “bark” of the brain is made up of mostly___.
A. Unmylinated axons
B. Mylinated axons
C. Glial cell bodies
D. Even combination of mylinated axons and cell bodies
E. Nueron cell bodies
Chapter 13 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 13.1 - What two subclasses make up the sensory division...Ch. 13.1 - 2. What is a lower motor neuron? How are upper...Ch. 13.1 - In what ways do the somatic and visceral motor...Ch. 13.1 - Prob. 4QCCh. 13.1 - Prob. 5QCCh. 13.1 - What structures are found in a peripheral nerve?Ch. 13.1 - How are sensations detected in the PNS and...Ch. 13.1 - 8. How are motor impulses transmitted from the...Ch. 13.2 - Prob. 1QCCh. 13.2 - 2. What are the Roman numerals and main...
Ch. 13.2 - 3. What are the Roman numerals and main...Ch. 13.2 - List the 12 pairs of cranial nerves in ascending...Ch. 13.2 - Prob. 5QCCh. 13.3 - Prob. 1QCCh. 13.3 - What are the anterior and posterior rami, and what...Ch. 13.3 - 3. What are the key structures supplied by each...Ch. 13.3 - 4. Differentiate between the trunks and cords of...Ch. 13.3 - Prob. 5QCCh. 13.3 - Prob. 6QCCh. 13.3 - Prob. 7QCCh. 13.4 - 1. What is sensory transduction?
Ch. 13.4 - Prob. 2QCCh. 13.4 - 3. What are the three components of a typical...Ch. 13.4 - What is a first-order sensory neurons receptive...Ch. 13.4 - What is the two-point discrimination threshold,...Ch. 13.4 - What is a dermatome?Ch. 13.4 - 7. Why is visceral pain often perceived as...Ch. 13.5 - 1. What are the main differences between an upper...Ch. 13.5 - 2. What is a motor neuron pool?
Ch. 13.5 - What is the general sequence of events for...Ch. 13.6 - Prob. 1QCCh. 13.6 - 2. How do intrafusal and extrafusal muscle fibers...Ch. 13.6 - What are the functions of primary and secondary...Ch. 13.6 - 4. How do Golgi tendon organs and muscle spindles...Ch. 13.6 - How do polysynaptic and monosynaptic reflex arcs...Ch. 13.6 - Prob. 6QCCh. 13.6 - How are the flexion and crossed-extension reflexes...Ch. 13.6 - What are some potential effects of sensory...Ch. 13.6 - How do upper and lower motor neuron disorders...Ch. 13 - Mark the following statements as true or false. If...Ch. 13 - Prob. 2CYRCh. 13 - 3. Define each of the following terms in your own...Ch. 13 - First, write the Roman numeral that corresponds to...Ch. 13 - Prob. 5CYRCh. 13 - Match the following nerves with the structures...Ch. 13 - First-order somatic sensory neurons are...Ch. 13 - Prob. 8CYRCh. 13 - Prob. 9CYRCh. 13 - 10. Merkel cell fibers, tactile corpuscles,...Ch. 13 - 11. Place the following sequence of events for the...Ch. 13 - How do upper and lower motor neurons differ?Ch. 13 - 13. List and describe the basic steps involved in...Ch. 13 - 14. The lower motor neurons that innervate...Ch. 13 - Fill in the blanks:______ detect the degree to...Ch. 13 - Which of the following is the correct order of...Ch. 13 - 17. Mark the following statements as true or...Ch. 13 - Prob. 18CYRCh. 13 - Prob. 1CYUCh. 13 - Prob. 2CYUCh. 13 - Prob. 3CYUCh. 13 - Prob. 1AYKACh. 13 - Jason presents for evaluation after a severe...Ch. 13 - 3. When Mr. Williams goes to the emergency...Ch. 13 - 4. Maria is a 3-year-old who has been diagnosed...Ch. 13 - Another feature of CIPA is anhidrosis, or the...
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- Fill in the blankes The somatic motor neurons innervating the __________________ of the lower limbs are located in the _________________ of the spinal cord. A. smooth muscles; lumbar region B. skeletal muscles; cervical region C. skeletal muscles; lumbar region D. skin; cervical regionarrow_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_forwardThe _____ 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_forward
- All sensory signals except _____ travel to the _____ in the brain before the cerebral cortex. a. vision; thalamus b. olfaction; thalamus c. vision; cranial nerves d. olfaction; cranial nervesarrow_forwardSensory 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.arrow_forward__________ are neuroglia in the __________ responsible for surrounding the soma of neurons. a. Astrocytes; CNS b. Satellite cells; PNS c. Astrocytes; PNS d. Satellite cells; CNS e. a and barrow_forward
- The axons of myelinated neurons are imbedded in a protective covering of A. Schwann cells B. gray matter. C. nodes of Ranvier D. synaptic knobs.arrow_forwardSensory signals for all of the following except _____ must pass through the thalamus before they can reach the cerebral cortex. a. smell b. taste c. hearing d. equilibrium e. visionarrow_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_forward
- Neurons traveling in descending tract of the white matter are _____. A. sensory neurons B. motor neurons C. association neurons D. interneuronsarrow_forwardThe gray matter is composed of the following, except for the __________________________. a. neuron cell bodies b. unmyelinated fibers c. myelinated fibers d. a and b e. a and c Muscle tone is due to ______ activating groups of motor units in response to input from ______ in muscles. a. stretch receptors; spinal reflexes b. spinal receptors; stretch reflexes c. spinal reflexes; stretch receptors d. stretch reflexes; spinal receptors e. none of the abovearrow_forwardThe 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. amacrinearrow_forward
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The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license