XWhich of the following statements CORRECTLY describes the function of acomponent of a reflex arc?Sensory receptors receive stimuli from interneurons.Effectors act as integration centres.Motor neurons conduct impulses to effectors.Sensory neurons gather information from effectors.The brain reacts to motor neurons. XUse the following information to answer the next question.Action Potential40m20 mOmW-20 m"resting potentiallhyperpolarizationWhich of the following describes the ion flow into or out of the nerve fibre at theposition marked 1 on the graph?OK and Nat are flowing in opposite directionsOK+ are flowing inNat are flowing outK+ are flowing outNat are flowing in

A typical brain circuit that regulates an organism's reflexes is shown by the reflex arc. A sensory…

Which of the following statements CORRECTLY describes the function of a component of a reflex arc? Sensory receptors receive stimuli from interneurons. Effectors act as integration centres. Motor neurons conduct impulses to effectors. Sensory neurons gather information from effectors. The brain reacts to motor neurons.

Which of the following statements CORRECTLY describes the function of a component of a reflex arc? Sensory receptors receive stimuli from interneurons. Effectors act as integration centres. Motor neurons conduct impulses to effectors. Sensory neurons gather information from effectors. The brain reacts to motor neurons.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter13: The Nervous System

Section: Chapter Questions

Problem 4SQ: In the simplest kind of reflex______, directly signal ________, which act on muscle cells. a....

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In the simplest kind of reflex______, directly signal ________, which act on muscle cells. a. sensory neurons; interneurons b. interneurons; motor neurons c. sensory neurons; motor neurons d. motor neurons; sensory neurons
Number the events of a reflex arc from 1 (first event) to 5 (last event). CNS sends output via motor neurons to an effector Sensory neurons bring the stimulus to the CNS The muscle contracts CNS processes and integrates the information Sensory receptor detects the stimulus
Reciprocal inhibition between reflexes depends upon all the following,except :-a- presence of inhibitory interneurons in the reflex pathwaysb- presence of excitatory interneurons in the reflex pathwaysc- presence of anion channels in membranes of the involved neuronsd- release of inhibitory transmitters which block cation channels in the reflex pathways
Recruitment of a reflex response is due to :-a- difference in the amount of presynaptic inputs to the various efferent neurons initiating the reflexb- difference in the conduction velocity of the various afferent neurons mediating the reflexc- delay at the neuromuscular junctiond- presence of inhibitory interneurons in the reflex pathway
Which of the following is the correct order of components in a reflex? Place in correct order stimulus, effector, efferent pathway, integrating center, afferent pathway, receptor?
Which of the following are essential components of a basic reflex arc? Select all that apply. At least one synapse Motor neuron Effector Sensory neuron Sensory receptor
There are reflex arcs that employ a gamma motor neuron wrapped around a muscle spindle and involve no interneurons. Which is NOT an appropriate example of these reflex arcs among the following? patellar reflex achilles reflex inverted supinator reflex C5 reflex arcs
Which of the following lists the components of a reflex arc in the order in which nerve signals pass through them? Sensory receptor -> motor neuron -> interneuron -> sensory neuron -> effector. Effector -> sensory neuron -> interneuron -> motor neuron -> sensory receptor. Sensory receptor -> interneuron -> sensory neuron -> motor neuron -> effector. а. b. c. Sensory receptor -> sensory neuron -> interneuron -> motor neuron -> effector. d. The ventral root of spinal nerves contains sensory neurons. motor neurons. а. b. c. efferent neurons. d. interneurons.
A reflex arc includes :-a- at least two sets of sequential neuronsb- at least two sequential sets of central synapsesc- at least two types of sensory receptorsd- at least two types of efferent neurons
In a combination of excitatory or inhibitory synaptic connections the following is true it is poorly exemplified by the stretch reflex during a knee jerk in the stretch reflex circuit the biceps or flexor muscle gets activated in the stretch reflex circuit the quadriceps or extensor muscle gets activated an inhibitory interneuron inhibits the flexor motor neuron an inhibitory interneuron inhibits the extensor motor neuron motor neuron
Visceral reflex arcs differ from somatic in which of the following ways? the number of sensory neurons the use of Ach as their only neurotransmitter the use of the motor cortex to regulate their effectors the number of motor neurons reliance on unipolar neurons to transmit their signals
Inhibitory interneurons associated with the reflex arc are turned on by glutamate. Group of answer choices True False The tendon tap reflex can be elicited by a stretch in a muscle. What is the order of information flow from the primary sensory afferent to the lower motor neuron? Group of answer choices dorsal horn, dorsal root, ventral horn dorsal root, dorsal horn, ventral horn ventral root, ventral horn, dorsal horn, dorsal root In regards to the spinothalamic tract, where does the second order neuron cross midline? Group of answer choices at the spinal cord segment at the brainstem at the thalamus it never crosses midline