Which of the following is not correct about the knee-jerk reflex? Select one: A. It involves interneurons in the spinal cord B. It involves afferent neurons C. It involves autonomic nervous system responses D. It involves the quadriceps, large skeletal muscles in the upper leg E. It involves efferent neurons

Q: Describe the neural pathway involved in the Achilles tendon reflex (see the provided anatomical…

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Q: How would you explain the following observation? When motor nerve fibers in the leg are severed, the…

A: Motor nerve fibres are responsible for carrying the impulses from the central nervous system to the…

Q: Which of the following effects result(s) from aging on the muscular system? a. Muscle mass declines.…

A: The muscular system is defined as an organ system composed of skeletal muscles, smooth muscles, and…

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…

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Q: Suppose that gated ion channels for Na+or Ca2+ opened in the plasma membrane of a muscle cell.The…

A: The correct option is (d) All of these.

Q: The Achilles tendon reflex is observed when the Achilles tendon of a person is tapped with a…

A: The Achilles tendon reflex is a reflexive response that involves the interaction of sensory and…

Q: Movement occuring in rectus abdominis occurs by innervation of: a. GSA b. GVA c. GSE d. GVE

A: The main action for rectus abdominis is flexion of the trunk. It, is a paired muscle running…

Q: All of the following is a component of a knee-jerk reflex except Select one: O A. sensors in the…

A: Reflex term can be defined as an involuntary movement that is associated with certain kinds of the…

Q: Sherrinton proposed the law of reciprocal innervation in the muslces. Which of the following is the…

A: Reciprocal innervation This refers to the motor neuron activity principle, which explains that when…

Q: The muscle marked by the black arrow 1. is identified as the dartos muscle 2.  is identified as…

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Q: To demonstrate muscle fatigue, a student held an 8 lb dumbbell in her hand and abducted her arm…

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Q: You decide to do a series of experiments to determine where the toxin has its effect. You accomplish…

A: The correct option is B. Either the alpha motor neurons ability to conduct action potentials or the…

Q: If we didn’t collect the data for the Normal knee-jerk response, would we be able to evaluate the…

A: Jendrassik maneuver : It is a maneuver which is used to see the reflex action of patellar area when…

Q: While initial control of skeletal muscles occurs with the motor cortex, a successful movement also…

A: The motor movements required coordination of central nervous system that controls the muscle…

Q: Muscle spindles are the sensory receptors that monitor the length of skeletal muscles. When the…

A: The muscles are involved in movements happening in an organism. These movements can be voluntary or…

Q: ago with a limited range of motion at his fourth finger. Which exam findings best correlate with a…

A: A - Palpation of a thickened band over the palmar flexor tendon.Thickening of palmar fascia is a…

Q: Check all that you know are true about the abductor pollicis longus muscle based on its name.   A.…

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Q: What is a synaptic knob?a. receptor for neurotransmitter in the neuromuscularjunctionb. membrane sac…

A: membrane sac holding the neurotransmitter

Q: You are observing in a Physical Therapy clinic and a patient presents with back pain. The images…

A: A ‘reflex arc' is the path that nerve impulses follow to trigger a reaction. Because this process…

Q: would you state that the neural pathway involved in the Achille's tendon reflex is myelinated or…

A: The Achilles tendon is the tendon of the gastrocnemius and soleus muscles inserting at the calcaneum…

Q: Muscle tone is: a. the result of voluntary shortening of the muscle. b. the result of a small amount…

A: Muscle tone is define as the contraction of muscle at rest Conditions

Q: If we surgically innervated the SA node with lower motor neurons and stimulated the lower motor…

A: The SA (sinoatrial) node is considered the pacemaker of the heart, as it initiates an action…

Q: Describe what would happen to the myotatic (stretch) reflex in each of the following conditions (get…

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Q: The following is supplied by autonomic nervous system: Select one: a. Glands b. Smooth muscies C.…

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Q: Increased action potentials from the sympathetic nervous system would cause which of the following?…

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Q: The series-elastic component of muscle contraction is responsible for a.increased muscle shortening…

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Q: What type of motor neuron stimulates skeletal muscle fibers to contract by the…

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Q: REFLEX a. Knee-Jerk RESPONSE Left - Knee Jerk reaction Right-Knee Jerk reaction Explanation

A: A reflex is an involuntary and nearly instantaneous response to a stimulus that occurs without…

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: What do we mean by the somatic motor system? O a. Cardiac muscle O b. The smooth muscles and glands…

A: Introduction :  The group of central and peripheral nervous system elements that support motor…

Q: The constant state of partial contraction of muscles is called a. muscle atrophy. b. muscle tone. c.…

A: Introduction: Muscle is a contractile tissue responsible for bringing out the movements. Muscles are…

Q: A patient arrives at the Emergency Department with an injury across the posterior shoulder just…

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Q: 1) For each of the following reflexes, detail what the sensor is, the integrator, and the effector.…

A: The nervous system is the command center for the entire body, controlling movements, actions,…

Q: Fill in the blank:  The sensory stretch receptors of the knee-jerk reflex are located in the…

A: A reflex action is the involuntary response of the body against an external stimulus. It is…

Q: OPTIONS GIVEN: 1. When the hammer/mallet strikes the patellar tendon, the muscle fibres stretch and…

A: The statement describes the reflex arc, specifically the patellar reflex (or knee-jerk reflex). It's…

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: The Interstitial Cells of Cajal (ICC) generate "slow waves" which refer to O A. slow action…

A: Option:B   phasic contractions

Q: The spinal cord has the motor neurons that control muscle. But who controls those motor neurons?…

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Q: How is the muscular contraction stopped (i.e.: how does a muscle relax after contraction)? 1. The…

A: Muscle Contraction is triggered when an action potential travels along the nerves to the muscles.…