Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 29, Problem 2PL
Stretch reflex receptors are called
a. effectors.
b. muscle spindles.
c. interneurons.
d. motor neurons.
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Students have asked these similar questions
Which of the following is NOT a reason why a reflex arc is faster than a normal nerve transmission?
a. A reflex arc stimulates the motor neurons for an immediate reaction.
b. A reflex arc does not send information to the brain to be processed.
c. A reflex arc does not involve neurotransmitters.
d. A reflex arc involves fewer neurons.
Spastic paralysis may occur when there is damage to a.the lower motor neurons. b.the upper motor neurons. c.either the lower or the upper motor neurons. d.Spastic paralysis would not result from either of these types of damage.
When arm muscles hurt after heavy exercise, the pain is detected bya. neurotransmitters.b. interoceptors.c. associative neurons.d. exteroceptors.
Chapter 29 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 29 - The impulse over a motor neuron will lead to a. an...Ch. 29 - Stretch reflex receptors are called a. effectors....Ch. 29 - Stretch reflexes include ail of the following...Ch. 29 - Prob. 4PLCh. 29 - Prob. 5PLCh. 29 - The quadriceps femoris is the effector muscle of...Ch. 29 - The posterior roots of spinal nerves contain the...Ch. 29 - The normal patellar reflex response involves...Ch. 29 - A withdrawal reflex employs...Ch. 29 - Interneurons in a withdrawal reflex are located in...
Ch. 29 - A reflex arc begins with the stimulation of a...Ch. 29 - Effectors of somatic reflex arcs are...Ch. 29 - Prob. 2.5ACh. 29 - The effector muscle of the patellar reflex is the...Ch. 29 - The sensory stretch receptors (muscle spindles) of...Ch. 29 - The posterior root of a spinal nerve contains the...Ch. 29 - The normal plantar reflex results in...Ch. 29 - Stroking the sole of the foot in infants results...Ch. 29 - In a stretch reflex arc, when the agonist muscle...Ch. 29 - Synapses, whether excitatory or inhibitory, occur...Ch. 29 - Prob. 2.13ACh. 29 - Prob. 2.14A
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- In the knee-jerk reflex, the afferent neurons Select one: a. innervate leg flexor muscles b. are sensory neurons c. innervate leg flexor and extensor muscles d. innervate leg extensor muscles e. are cranial nervesarrow_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_forwardHyporeflexia occurs when normal reflexes are weak but not absent. Damage to which of the following would result in hyporeflexia? Hyporeflexia occurs when normal reflexes are weak but not absent. Damage to which of the following would result in hyporeflexia? A.Motor neuron B. Sensory neuron C.Skeletal muscle D. Any of the choices would result in hyporeflexia. Which option to select..arrow_forward
- A _____________ reflex is monosynaptic and responds to stretching in a muscle spindle. a. withdrawal c. Golgi tendon b. crossed-extensor d. stretcharrow_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_forwardAll motor neurons release acetylcholine as a neurotransmitter except a. Postganglionic sympathetic neurons b. Somatic motor neurons c. Postganglionic parasympathetic neurons d. Specific cardiac and smooth muscle fibersarrow_forward
- . are responsible for regulating the sensitivity of the musclespindle.a. Alpha motor neurons d. Golgi tendon organsb. Sensory neurons e. Inhibitory interneuronsc. Gamma motor neuronsarrow_forwardAcetylcholinesterase is an important molecule in the neuromuscularjunction because ita. stimulates receptors on the presynaptic terminal.b. synthesizes acetylcholine from acetic acid and choline.c. stimulates receptors within the motor end-plate.arrow_forwardMuscle 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_forward
- Sensory 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_forwardA structure or cell that collects sensory information is aa. motor neuron.b. receptor.c. neurolemmocyte.d. ganglion.arrow_forwardAll of the following are true regarding the descending motor tracts EXCEPT which one? A. They originate in either the cerebral cortex or brainstem. B. The pathways are generally made of a two-neuron system. C. The upper motor neuron fibers target lower motor neurons of the spinal cord or cranial nerves. D. They are involved in assisting with voluntary movement.arrow_forward
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