Tendon jerks are clinically examined to asses :-a- integrity of muscle spindlesb- integrity of reflex pathwayc- the total reflex time of the jerkd- central delay time of the jerk

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

A: Premotor cortex is the part of motor cortex that is situated in the frontal lobe of brain and is…

Q: A reflex action :-a- is a fast brief response to a sensory stimulusb- is involved in regulation of…

A: The nervous system is an intricate network of neurons that allows us to respond to sensory…

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: Co-activation of α and γ-motor   neurons :-a- increases γ-motor neuron discharge whenever the…

A: Alpha (α) motor neurons control muscle contraction involved in voluntary movement, whereas gamma (γ)…

Q: Give a labeled illustration of a simple reflex arc with its components of the patella tendon tap…

A: Knee jerk reflex is an example of simple monosynaptic reflex.  If tapping the random just below the…

Q: The role of γ-motor neurons in regulation of equilibrium is achieved   by :-a- initiating…

A: The nervous system plays a major role in transmitting the reflexes from the tissues to the brain.…

Q: Which muscles does the brain control (unconscientiousness)?   A.smooth   B.cardiac…

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

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: The ability of stronger stimuli to produce wider range of reflex responses depends upon :-a-…

A: The central nervous system consists of the brain and the spinal cord. It is the hub of information…

Q: The crista ampullaris is sensitive to :-a- sound vibrationsb- force of gravityc- linear…

A: Crista ampullaris is present in the inner ear. It is present in the ampulla of the semicircular…

Q: In flexor withdrawal reflexes contraction of flexor muscles is associated with reciprocal…

A: Withdrawal reflex is a postsynaptic occurring in response to a noxious stimuli.  Characterised by…

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: 4) How are the muscle spindles stretched during the patellar reflex? a) Striking the tendon with a…

A: The muscular system in the body is made up of muscle fibres which help in muscle contraction. they…

Q: A flexor withdrawal reflex shows all the following properties, except :-a- recruitmentb- prepotent…

A: Somatic motor activity depends ultimately on the pattern and discharge rate of spinal motor neurons…

Q: #8

A: Hello! Since you have posted multiple questions, we are answering only the first question for you.…

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

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

Q: Motor innervation of the leg proper comes predominantly from the _____ plexus.

A: In the field of anatomy, a plexus is defined as the branch of networks of blood vessels or nerves,…

Q: The Rubrospinal tract :-a- originates from the pontine reticular formationb- descends…

A: Rubrospinal tract is a descending tract or pathway which takes origin in the red nucleus of…

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

A: A reflex refers to the prompt and involuntary movement of the body parts in reply to a stimulus. A…

Q: Absence of a tendon jerk could result from any of the following conditions, except :-a- lesions of…

A: Tendon jerk is a dynamic stretch reflex contraction of the muscle to which the tendon is attached.…

Q: Which of the following is not correct about the knee-jerk reflex? Select one: A. It involves…

A: Reflexes are described as automatic responses to a stimulus that does not involve the brain. They…

Q: An experimental drug blocks the body’s muscle spindles from detecting stretch. Predict the effects…

A: Muscle spindles are defined as the stretch receptors within a muscle's body that sense differences…

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: Watch this short video (http://openstaxcollege.org/l/facialnerve) to see an examination of the…

A: The facial nerve is also known as the seventh cranial nerve or CN VII nerve. It originates from the…

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: Adequate level of muscle tone is essential for the accurate performance of voluntary movements,…

A: Movements, which can be controlled consciously by the person are known as voluntary movements.…

Q: In UMN lesions the response of the paralyzed muscles to electrical stimulation is :-a- exaggeratedb-…

A: Motor neurons are the nerve cells that are present in the brain and they control the movement of the…

Q: Central delay of reflex actions :-a- is due to presence of inhibitory interneurons in the reflex…

A: Reflex actions are involuntary and instantaneous movements in response to the stimulus. They are…

Q: A tendon jerk :-a- is a dynamic stretch reflex b- is a static stretch reflexc- is evoked by…

A: A reflex action is an autonomic and rapid response to a stimulus, which minimizes any damage to the…

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: Which of these events occurs when a person steps on a tack with theright foot?a. The right foot is…

A: A direct impact or a penetrating injury, or a fall may cause acute injury or twisting, jerking, or…

Q: e primary motor area Multiple Choice contains more motor neurons for the thighs than the mouth.…

A: Its is area of brain located in precentral gyrus of frontal lobe. It gives rise to motor descending…

Q: What is the cause of the fused/complete tetanus (4) in the figure below? * Average tension…

A: ANSWER;- At higher stimulus frequencies, there is no relaxation at all between stimuli. Explain;-…

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: Fill in the blank:  The effector of the knee-jerk reflex is the _______________________ muscle.

A: Reflexes are automatic, rapid responses to specific stimuli. They maintain homeostasis through…

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: Interruption of spindle discharge from a muscle causes contraction of the muscle to become jerky and…

A: Muscle spindle is small, spindle-shaped sensory receptors located in skeletal muscle tissue and they…

Q: Inverse stretch reflex :-a- increases the possibility of avulsion of the excessively stretched…

A: The inverse stretch reflex also is known as Golgi tendon reflex refers to the self-induced…

Q: Clonus :-a- is a sign of decreased supraspinal facilitationb- initiated by briefly stretching the…

A: The nervous system is the system of nerves that are spread in every part of the human body. These…

Q: The tendon jerk which has its center in the 5th and 6th cervical segments ofthe spinal cord is :-a-…

A: Tendon reflex is a myotatic or deep reflex in which the muscle stretch receptors are stimulated by…

Q: Spasticity of the paralyzed muscles in UMN lesions is associated with :-a- inhibition of tendon…

A: The upper motor neuron can be defined as the lesion of the neural pathway that lies above the…

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: Fatigue of reflexes :-a- develops gradually and recovers rapidlyb- develops rapidly and recovers…

A: The involuntary and automatic response for a stimulus is called a reflex and the pathway is called a…

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: 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…