ANATOMY+PHYSIOLOGY (LL) >CUSTOM PKG.<
ANATOMY+PHYSIOLOGY (LL) >CUSTOM PKG.<
4th Edition
ISBN: 9781264457861
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 14, Problem 9DYKB
Summary Introduction

Introduction:

Stretch reflex is monosynaptic reflex and gets activated upon the stretching of the muscle fibers. The stimulus causes the contraction and relaxation of the muscles as analyzed by the sensory neurons that are intercoiled along the intrafusal muscle fibers. The signals from the sensory neurons in the spinal cord are intercepted by the alpha motor neurons present in the muscle fibers.

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Motor neurons are crucial for movement, what would happen if the motor neurons would be destroyed. a. How would this affect our reflexes b. Research illnesses that affect Motor Neurons
NOTE THESE ARE ALL ONE QUESTION GROUP and need to be answered as such   Identify the term that does NOT belong in the group.   A. Parasympathetic tone   B. Urinary tract   C. Rapid heart rate   D. Digestive tract Approximately 75% of all parasympathetic axons are located in the _______________.   A. vagus nerve (X)   B. oculomotor nerve (III)   C. facial nerve (VII)   D. glossopharyngeal nerve (IX) Which of these functions is NOT affected by parasympathetic stimulation?   A. Secretion of insulin from the pancreas   B. Secretion of thin, watery saliva   C. Secretion of tears   D. Secretion of sweat The parasympathetic division ________________________.   A. is responsible for the fight-or-flight response   B. mediates many reflexes that regulate the digestive, urinary, and reproductive systems   C. causes an increase in metabolism   D. decreases blood flow to the skin
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