
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
The highly localized nature of stretch reflex is due to :-
a- the limited number of interneurons in the reflex pathway
b- all the central ends of afferents from spindles of the stretched muscle
terminate on the α -motor neurons of the muscle
c- the α -motor neurons of the stretched muscle receive most of the central terminals of afferents coming from spindles of the muscle
d- activation of inhibitory interneurons which inhibit the motor neurons of
the surrounding muscles
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 38- Which of the following is not a characteristic of the muscle spindles: a- Encapsulated intrafusal muscle b- Sensitive to steady-state length of muscle c- Arranged in series with extrafusal muscle fiber. d- Sensitive to dynamic stretching length of musclearrow_forwardWhy does muscle CAP Amp for both the normal Ringer's solution and Ringer's solution with Neostigmine increased as the stimulus amplitude increased, but a normal Ringer's solution would have a larger muscle CAP Amp value? Why is this the same case for a CAP Period as stimulus amplitude increases?. Why would Muscle CAP Period values for Ringer's with NEO then have larger values. Why does a normal Ringer's solution take longer to reach maximum action potential ?arrow_forwardIn UMN lesions the response of the paralyzed muscles to electrical stimulation is :-a- exaggeratedb- inhibitedc- not changedd- is absentarrow_forward
- Using pyramidal motor tract as a template, describe the voluntary control of skeletal muscles being sure to use appropriate course terminology. Start from the very first neuron and end with neural innervation onto muscle fiber.arrow_forwardAutnomic nervous system use arrows to show whether parasympathetic (p) or syspathic (s) fibers stimulate or inhibit or a dash for no parasympathetic interaction for each of the following construction of blood vessels of skin and abdominal viscera 2, salivation and digestive organ contractions 3,Erection or engorgement of genitalia 4, dilation of bronchioles for easier breathing 5, contraction of bladder and relaxation 6,contractions of arrector pill of hair arrector pill of hair follicles causing goose bumps 7,increase in blood glucose level by pancreatic serection coling with stress fight or fight responsearrow_forwardSkeletal muscle cells have a(n) receptor that is also adrenergic, muscarinic adrenergic, nicotinic cholinergic, muscarinic cholinergic, nicotinicarrow_forward
- What are the components in a polysynaptic reflex arc in the order that they are activated. Then briefly describe the function of each. #1 #2 #3 #4 #5arrow_forwardA 60-year-old man has had mild weakness of the proximal muscles of the upper and lower extremities for the past several months. He was recently diagnosed with small cell carcinoma of the lung Reflexes are hypoactive. The amplitude of the compound motor action potential elicited in response to a single supramaximal electrical stimulus is small but increases significantly with repetitive stimulation at a frequency of 30 Hz Which of the following is the most likely site of the deficit? Cerebral cortex Spinal cord Peripheral nerve Muscle spindle Neuromuscular junctionarrow_forwardWhich type of proprioreceptor is sensitive to changes in both muscle length and the speed of muscle contraction? Question 8 options: golgi tendon organs muscle spindles pacinian corpuscle end organs of Ruffiniarrow_forward
- Increased sensory discharge from muscle spindles :-a- decreases muscle toneb- increases muscle tonec- could either increase or decrease muscle tone according to the muscle affectedd- has no effect on muscle tonearrow_forward44- An animal is suffering from exaggerated segment reflexes is due to a disorder in: a- Lower motor neuron C- Alpha motor neuron b- Upper motor neuron d- Gamma motor neuronarrow_forwardThe disease poliomyelitis (po′le-o-mi′˘e-li′tis) destroys motor neurons, causingloss of muscle function and even flaccid paralysis. Some patients recoverbecause axon branches form from the remaining motor neurons. Thesebranches innervate the paralyzed muscle fibers to produce motor unitswith many more muscle fibers than usual. How does this reinnervation ofmuscle fibers affect the degree of muscle control in a person who hasrecovered from poliomyelitis?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education

Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON

Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax

Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,

Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company

Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.

Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education