Central delay of reflex actions :-a- is due to presence of inhibitory interneurons in the reflex pathwayb- is the time between stimulation of receptors and response of the effector musclec- is longer in the flexor reflex than in the stretch reflexd- is determined by the velocity of conduction of impulses along the afferent and efferent neurons in the reflex pathway

Q: True/False: In a polysynaptic reflex, a sensory neuron synapses directly with a motor neuron.

A: A reflex, or reflex activity, is a compulsory and almost immediate movement because of a stimulus. A…

Q: Premotor cortex is associated with ___________, whereas the supplementary motor area is associated…

A: The motor cortex is the prefrontal cortex zone included in deliberate development arranging,…

Q: Stretch reflex is characterized by the following except :-a- disynaptic reflexb- high localizationc-…

A: The involuntary contraction of the muscle in response to stretch without sensory input from the…

Q: Give the parts of the reflex arc for the patellar reflex including the main components and the nerve…

A: Tendon Reflexes of the Lower Limb Skeletal muscles receive a segmental innervation. Most muscles are…

Q: What are the five reflex arc components for the Plantar Reflex? Receptor, the type of the receptor,…

A: Reflex is a spontaneous involuntary response to the stimulus. Reflex arc is a pathway that carries…

Q: List and describe what is happening in each of the 5 steps of a spinal reflex arc. Assume that the…

A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…

Q: A functional reflex requires a. only a sensory neuron and a motor neuron. b. a sensory neuron,…

A: Answer is a.)only a sensory and motor neuron.

Q: All somatic reflexes share all of the following properties except a. they are quick. b. they are…

A: The brain is the organ that is Central to the nervous system. The nerves throughout our body carries…

Q: Regarding the vestibuloocular reflex, when a person turns their head to the left the right medial…

A: The information for keeping the body at equilibrium and maintaining the balance of the body is sent…

Q: Describe the reflex arc mechanism.

A:

Q: Concerning the patellar reflex, compare the reflex with and without Jendrassik's maneuver. The…

A: Hi! Thanks for the question. As you have posted multiple questions, I would be answering only the…

Q: Reflex Arc Using the terms provided, label the following illustration of a reflex arc. Dendrite Cell…

A: Reflex arc is a neural pathway that controls a reflex, an immediate response to a particular…

Q: 31- which of the following is not always a component of a reflex arc: a- effector organ C- CNS b-…

A: Reflex action is involuntary movement in response to stimulus. Reflex arc is a neural pathway.

Q: Asymmetrical bilateral discharge from the SCCs occurs :-a- on exposure to a linear movementb- during…

A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…

Q: Draw a reflex arc in place in the nervous system (recall Figure 12.11). Would the reflex still…

A: A reflex arc refers to the neuronal pathway that is followed by a reflex in response to a stimulus.

Q: 1. Refer to the figure. Which of the following statements is incorrect? 35 30 25 20 10 5 Visual…

A: Neurons are the structural and functional unit of brain and the nervous system. They receive signals…

Q: The cerebellum controls performance of rapid movements by :-a- directly stimulating AHCs of the…

A: The cerebellum is a large dorsally projecting part of the brain, which receives information from the…

Q: reflex arc involving only two neurons. Use the information provided by the diagram to answer the…

A: According to our guideline we can answer only first three subparts. So, upload the subperts…

Q: Look at this figure and then answer of the following questions Sensory input -- - --- Afferent Brain…

A: As per the guidelines, we are entitled to do only three subparts for multiple questions therefore I…

Q: Demyelination of a ventral root would be most likely to produce which of the following?…

A: Myelin, a type of fatty tissue that surrounds and protects nerves throughout the body, is lost…

Q: Ventral tegmental area (VTA) neurons in the brain have been implicated in the etiology of symptoms…

A: The VTA or the ventral tegmental area neurons are the group of neurons present in the midline on the…

Q: Reflex actions could be classified according to :-a- the type of sensory receptors initiating themb-…

A: The involuntary action that has an instantaneous movement in a body to respond to a stimulus is…

Q: Flexor reflexes do not involve :-a- flexor musclesb- extensor musclesc- reciprocal inhibitiond-…

A: Reflexes are involuntary instantaneous movements in response to a particular stimulus. Reflex does…

Q: Fasciculations of lower motor neuron lesions :-a- are caused by injury currents initiated in the…

A: The brain is the most important part of the body that controls every action in our body. It is a…

Q: Label the patellar reflex arc and reciprocal innervation in Figure .

A: Sensory organ Sensory neuron Interneuron  Cell bodies of motor neuron Motor neuron Motor neuron…

Q: Describe the structure and function of a simple reflex arc in humans. Include a description of the…

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Q: Connie accidentally touched the hot kettle. Explain what happens using your knowledge of withdrawal…

A: Withdrawal reflex is automatic withdrawal from painful stimulus..

Q: Automatic responses are processed in more primitive areas of the brain, such as the amygdala,…

A: Amygdala  Amygdala is a group of almond shape celled located at the base of the the brain.

Q: The knee-jerk reflex is often called a stretch reflex because a sharp tap on the patellar ligament…

A: The knee jerk reflex is otherwise known as a patellar reflex is a classic example of a stretch…

Q: What are the five reflex arc components for the patellar reflex? Receptor, the type of the…

A: Reflex is a spontaneous involuntary response to the stimulus. Reflex arc is a pathway that carries…

Q: H. ntify the labeled parts of the reflex arc. |Choose (Choose (Choose (Cheo (Chooie (Cho

A: A reflex arc is an involuntary reaction in response to a stimulus. For instance, when an individual…

Q: Interneuron after-discharge circuits prolong the duration of :-a- sensory input to the spinal motor…

A: Central nervous system is part of the nervous system that is central to all the information…

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Q: Failure of the spinal reflexes is manifested by :-a- automatic micturitionb- appearance of Babinski…

A: Spinal reflex or the spinal cord reflex refers to several simple behaviors, produced by the…

Q: The highly localized nature of stretch reflex is due to :-a- the limited number of interneurons in…

A: The spinal cord reflexes produced by central nervous system (CNS) pathways, which lie entirely…

Q: After-discharge of reflex responses :-a- increase the magnitude of the reflex responsesb- delays the…

A: Neurons are the fundamental unit of brain and nervous system. They are electrically excitable cells…

Q: Identify the indicated part of the reflex arc model. NERV OUS S YSTEM reflex arc motor neuron…

A: To solve this question we must understand what is reflex.A reflex is an involuntary , automatic…

Q: When stimulated by effective steady stimuli, sensory receptors :-a- continuously discharge…

A: Introduction  Sensory receptors are those receptors which perceive the signals from the outer…

Q: somatic reflex versus a visceral reflex.

A: Introduction:-  Visceral reflexes,  non-skeletal muscular response in internal organs as the heart,…

Q: Hypertonia of UMN lesions is characterized by :-a- increased inhibitory discharge from the premotor…

A: UMN -upper motor neuron signs, the symptoms include muscle weakness, spasticity, hyperreflexia, and…

Q: T or F. Motor signals originating in the cortex can't interfere with motor reflex response? T or F.…

A: 1) the correct answer is - TRUE but it has restrictions upto a limit. This statement is neither…

Q: The central junction of the reflex arc for the patellar reflex consists only of a synapse between…

A: The reflex arc is a nerve or neural pathway which a nerve impulse follows. It is a pathway involved…

Q: The shortest reflex time is recorded with :-a- a flexor withdrawal reflexb-an inverse stretch…

A: Reflex is a spontaneous involuntary response to the stimulus. Reflex arc is a pathway that carries…

Q: Aaron accidentally touched the hot kettle. Explain what happens using your knowledge of withdrawal…

A: The somatic nervous system has long been thought to be a subset of the peripheral nervous system.…

Q: Trace the reflex arc, naming efferent and afferent nerves, receptors, effectors, and integration…

A: The calcaneal tendon is also called the heel cord or the Achilles tendon. It is located on the…

Q: Label on the diagram: 1. Muscle spindle 2. Sensory neuron 3. Soma of sensory neuron 4. Dorsal root…

A: Muscle stretch reflexes are involuntary and automatic muscle contractions in response to a slight…

Q: Plantar Reflex 6. Check this reflex in a classmate by using the blunt metal end of a reflex hammer…

A: The plantar reflex – when the sole of the foot is stimulated by using the blunt metal end of a…

Q: Muscle fatigue has been suggested as one factor that can increase the chances of non-contact sports…

A: * Anterior cruciate ligaments found inside knee joint.which cross each other to form an "X"…

Q: A reflex arc includes :-a- at least two sets of sequential neuronsb- at least two sequential sets of…

A: A reflex action is a type of an involuntary action or a rapid response to a stimulus which basically…

Q: Recruitment of a reflex response is due to :-a- difference in the amount of presynaptic inputs to…

A: A reflex response or action is an instantaneous response to a stimulus. It is an involuntary…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.