Essntls. Of Human Anat....-With CD and Mod.Access
11th Edition
ISBN: 9780134009629
Author: Marieb
Publisher: PEARSON
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Chapter 7, Problem 12MC
Summary Introduction
Introduction:
Neural pathways are known to control all the reflexes, these are called reflex arcs. Sensory neurons synapse in spinal cord instead of passing directly into the brain. This generates quick reflex actions as there is no routing of the signals to the brain.
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All of the following are true concerning reflex arcs EXCEPT
A.they involve a few neurons and directly enter and immediately leave the spinal cord
B.they are used to prevent harm
C.they are subconscious and automatic
D.they only use the PNS and not the CNS
What evidence led Sherrington to conclude that transmission at a synapse is different from transmission along an axon? a. Chemicals that alter a synapse are different from those that affect action potentials. b. The velocity of a reflex is slower than the velocity of an action potential. c. Stains and microscopic observations demonstrate a gap at the synapse. d. Reflexes can go in either direction, whereas axons transmit in only one direction.
Emergency room doctors often shine a light into the eyes of patients with head injuries to test their pupillary reflex.
The structure that relays the information between the optic nerve and the motor neuron, and the division of the nervous system that the structure is part of , respectively are:
Select one:
a. an interneuron and the peripheral nervous system
b. the occipital lobe and the peripheral nervous system
c. the occipital lobe and the central nervous system
d. an interneuron and the central nervous system
Chapter 7 Solutions
Essntls. Of Human Anat....-With CD and Mod.Access
Ch. 7 - Prob. 1MCCh. 7 - Prob. 2MCCh. 7 - The innermost delicate meningeal layer is the a....Ch. 7 - Prob. 4MCCh. 7 - 5. The pineal gland is located in...Ch. 7 - Prob. 6MCCh. 7 - 7. The spinal cord feature associated with the...Ch. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MC
Ch. 7 - More than one choice may apply. Which of the...Ch. 7 - Prob. 12MCCh. 7 - Prob. 13SAECh. 7 - Prob. 14SAECh. 7 - Prob. 15SAECh. 7 - Identify and briefly describe the role of...Ch. 7 - Briefly explain how nerve impulses are initiated...Ch. 7 - Prob. 18SAECh. 7 - Prob. 19SAECh. 7 - Prob. 20SAECh. 7 - Prob. 21SAECh. 7 - 22. What is the function of the thalamus? The...Ch. 7 - Describe how the brain is protected by bone,...Ch. 7 - Prob. 24SAECh. 7 - Prob. 25SAECh. 7 - Prob. 26SAECh. 7 - Prob. 27SAECh. 7 - Prob. 28SAECh. 7 - Prob. 29SAECh. 7 - Prob. 30SAECh. 7 - Identify the neurotransmitters used in each of the...Ch. 7 - Prob. 32SAECh. 7 - Prob. 33SAECh. 7 - 34. How does a Schwann cell help insulate a nerve...Ch. 7 - Prob. 35SAECh. 7 - Prob. 36SAECh. 7 - Prob. 37CAQCh. 7 - 38. Joseph, a man in his early 70s, was having...Ch. 7 - Prob. 39CAQCh. 7 - Prob. 40CAQCh. 7 - Latifah is in the first trimester of her second...Ch. 7 - 42. Mrs. Chen, a new mother, brings her infant to...Ch. 7 - Three-year-old Brittany is sobbing that her right...Ch. 7 - 44. Mr. Harrison is an 82-year-old bedridden...Ch. 7 - Clarence, an elderly man with a history of TIAs,...Ch. 7 - Prob. 46CAQCh. 7 - Jason is the star of his hometown ice hockey team....Ch. 7 - Prob. 48CAQCh. 7 - Prob. 49CAQCh. 7 - As the aroma of freshly brewed coffee drifted by...
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