Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 39.5, Problem 1ET
John comes to the emergency room with neither voluntary movement nor feeling in his legs. The ER physician pricks his leg with a pin and finds that his leg still withdraws from the pain. How can John have a normal pain-withdrawal reflex but feel no pain?
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We know that a reflex arc is a circuit, but what are the nerve connections arc called?
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
Distinguish between the following types of reflexes:
A) Somatic vs. Visceral (autonomic) reflex
B) Monosynaptic vs. Polysynaptic reflex
C) Ipsilateral vs. Contralateral vs. Bilateral (consensual) reflex
D) Cranial vs. Spinal reflex
Chapter 39 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 39.1 - describe the structure of a typical neuron?Ch. 39.1 - Prob. 2CYLCh. 39.2 - Prob. 1TCCh. 39.2 - Prob. 1CYLCh. 39.2 - explain how an action potential in a presynaptic...Ch. 39.2 - Prob. 3CYLCh. 39.2 - Prob. 1CSCCh. 39.3 - Prob. 1TCCh. 39.3 - Prob. 1CYLCh. 39.3 - Prob. 2CYL
Ch. 39.3 - explain how the brain determines which muscles to...Ch. 39.4 - describe the anatomy of diffuse and centralized...Ch. 39.5 - John comes to the emergency room with neither...Ch. 39.5 - Prob. 1CSCCh. 39.5 - Prob. 2ETCh. 39.5 - At least two commercial companies, No Lie MRI and...Ch. 39.5 - Prob. 1HYEWCh. 39.5 - distinguish between the central and peripheral...Ch. 39.5 - Prob. 2CYLCh. 39.5 - label diagrams of the human brain and spinal cord,...Ch. 39.5 - Prob. 4CYLCh. 39.5 - Prob. 5CYLCh. 39.5 - Prob. 2CTCh. 39.5 - Prob. 1CSRCh. 39 - Prob. 1MCCh. 39 - Neurotransmitters are typically released by a a....Ch. 39 - Automatic bodily functions such as breathing and...Ch. 39 - Prob. 4MCCh. 39 - Prob. 5MCCh. 39 - Prob. 1FIBCh. 39 - Prob. 2FIBCh. 39 - Prob. 3FIBCh. 39 - Prob. 4FIBCh. 39 - Prob. 5FIBCh. 39 - Prob. 6FIBCh. 39 - Prob. 1RQCh. 39 - Prob. 2RQCh. 39 - What are the four elements of a neuronal pathway,...Ch. 39 - Prob. 4RQCh. 39 - Prob. 5RQCh. 39 - Prob. 6RQCh. 39 - Explain the differences between short-term memory...Ch. 39 - Prob. 1ACCh. 39 - Prob. 2AC
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- Fill in the blank: Interneurons in a withdrawal reflex are located in the _______________________.arrow_forwardHorner’s syndrome is a condition that presents with changes in one eye, such as pupillary constriction and dropping of eyelids, as well as decreased sweating in the face. Why could a tumor in the thoracic cavity have an effect on these autonomic functions?arrow_forwardRuby has sustained damage to the ventral root, which is just next to the spinal cord at the level of the lumbar enlargement. When Ruby accidentally steps on some broken glass, what outcome do you expect? a) Ruby will remove her foot from the glass by reflex and will later become aware of the pain b) Ruby will feel the pain but not have a reflex removal of the foot from the broken glass c) Ruby will remove the foot from the broken glass by reflex but will not be aware that she has stood on the glass d) Ruby will not be aware that she has stood on the glass and will not move her footarrow_forward
- Identify the Golgi tendon reflex (which is an innate reflex) as (a) spinal or cranial, (b) somatic or visceral, (c) monosynaptic or polysynaptic, and (d) ipsilateral or contralateral.arrow_forwardSuppose a person has spinal cord damage at the cervical level. would this stop the knee-jerk reflex? How would it affect the plantar reflex? Explainarrow_forwardList the actions that occur during a withdrawal reflex.arrow_forward
- During a robbery at his convenience store, Dustin was shot in the right cerebral hemisphere. He survived, although some specific functions were impaired. Would Dustin have been more likely or less likely to have survived if he had been shot in the medulla oblongata? Why?arrow_forwardDescribe the function of each part of a reflex arc, and name two reflex examples.arrow_forwardBen was cooking some steaks and burgers on the BBQ when he accidently touched the hot plate and withdrew his hand immediately . Explain the neural pathway and refer to the key components of the withdrawl reflex arc.arrow_forward
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