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

Q: List the names and functions of the three neurons involved in a reflex arc (eg. a spinal refelx) and…

A: In a reflex, the path taken by the nerve impulse is known as a reflex arc. The events followed in a…

Q: In a withdrawal reflex with reciprocal innervation:     inhibitory interneurons decussate from the…

A: Withdrawal reflex is a protective reflex. It is present during birth and thus persists throughout…

Q: What is a reflex arc? What components must be present to qualify?

A: REFLEX ACTION: also known as a reflex, is an INVOLUNTARY, SPONTANEOUS AND AUTONOMIC AND SUDDEN…

Q: each of the following statements about the line reflex, state whether it is true or false. The…

A: 1 ) The stretch reflex involves sensory neurons that switch directly to the motor neuron in the…

Q: Describe how the loss of motor control differs between flaccid and spastic paralysis

A: Paralysis is a loss of muscle weakness or loss of muscle function in some part of the body. The…

Q: List the names and functions of the three neurons involved in a reflex arc (e.g. a spinal reflex)…

A: Spinal cord is important for the reflex reactions because it is placed below the brain level and is…

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: Describe the mechanism and function of a stretch reflex, tendonreflex, flexor (withdrawal) reflex,…

A: A reflex refers to the rapid, unplanned series, and involuntary actions that take place in response…

Q: Describe the difference between an ipsilateral and contralateral reflex arc.

A: The reflex arc pathway trips from the stimulus to sensory neuron to motor neuron to reflex muscle…

Q: Describe some common variations in reflex arcs?

A: The nervous system mediates a response that happens without our conscious effort. It is known as a…

Q: Compare and contrast the neural paths for a somatic reflex versus a visceral reflex.

A: Reflex arc- a neural pathway that controls a reflex. Visceral reflex-Most sensory neurons do not…

Q: Discuss the mechanism of Reflex action?

A: Reflex action refers to a spontaneous response to stimulus which occurs within fraction of seconds.…

Q: please explain clear and short answer of the function of the  Neuralgia of CNS  and Neuralgia of PNS…

A: The cells of nervous system other than neurons which are incapable of generating and transmitting…

Q: Is the brain necessary for spinal reflex activity to occur? Why or why not? List in correct…

A: Phylogenetically, the spinal cord is older than most brain structures; they are responsible for…

Q: List the components of reflex arc in correct sequence?

A: Reflex Arc: When actions are being taken without the input of brain, these are known as a REFLEX.  A…

Q: Describe how monosynaptic and polysynaptic reflex arcs differ

A: The reflex arc can be defined as the pathway taken by the neuron in the reflex action.…

Q: Which of the following are essential components of a basic reflex arc? Select all that apply. At…

A: A reflex action can be referred to as an involuntary, instantaneous movement produced in response to…

Q: There are reflex arcs that employ a gamma motor neuron wrapped around a muscle spindle and involve…

A: A stretch reflex involves sensation perception of the tap by the intrafusal fibres in the muscle…

Q: Why must the withdrawal reflex, but not the stretch reflex, involve a polysynaptic reflex arc?

A: The withdrawal reflex could be a spinal reflex meant to shield the body from damaging stimuli. it's…

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: What is affected by electrical signal sent by forth reflex arc structure?(This will be the fifth…

A: A reflex arc is a basic nervous pathway that controls the reflex response, which is a fast reaction.…

Q: 1.The man sat motionless for a long time in an awkward position on a hard surface. After he got up,…

A: The nervous system's primary function is to detect and analyze environmental (endogenous and…

Q: A friend who works in a research lab is conducting an experiment to study motor movement. First the…

A: The animal undergoes T5 spinal transection which is the injury that affects legs and trunk. GABA…

Q: List the names nd functions of the three neurons involved in a reflex arc (eg. a spinal reflex) and…

A: A reflex action can be defined as an involuntary response to a stimulus. It minimizes the damage to…

Q: What are the two basic ways in which alpha motor neurons are controlled at the level of the spinal…

A: Alpha motor neurons are huge, multi-polar motor neurons present in the brainstem and the spinal…

Q: what is typical reflex pathway containing three different nerve cell types. What function does the…

A: The 3 major types of nerve cells in the nervous system include: Sensory neurons Relay neurons Motor…

Q: Define the term stretch reflex and describe how such reflexes are used to anatomically localize SCI

A: Stretch reflex, also known myotatic reflex is defined as the muscle contraction in response to…

Q: In a single reflex arc involved in the knee-jerk reflex, how many synapses are activated within the…

A: Reflex is a fast, unplanned sequence of action in response to a stimulus. Nerve impulses propagating…

Q: Name some visceral reflexes controlled by the spinal cord.

A: Visceral reflexes utilize the autonomic nervous system to carry impulses glandular or non-skeletal…

Q: What makes up the grey matter of the spinal cord? Why is this material grey? b. What makes up the…

A: The spinal cord is a primary nerve pathway in vertebrates that extends from base of the skull…

Q: Provide the best explanation why the patellar reflex is considered a monosynaptic reflex. O The…

A: A reflex is described as an involuntary movement of the muscle in response to sudden stimuli. Deep…

Q: Can you explain the physiologic basis of these results following the stimulation of the central…

A: The vagus nerve, historically cited as the pneumogastric nerve, is the tenth cranial nerve or CN X,…

Q: Explain the five ways a reflex may be classified

A: The nervous system and the body responds differently to different stimulus. The term reflex is used…

Q: Match functions with parts of the central nervous system (CNS) This structure regulates voluntary…

A: The central nervous system is the main centre of the body responsible for regulating most of the…

Q: How many neurons are in a monosynaptic reflex arc?

A: A reflex motion is an automatic and almost instantaneous reaction in response to a stimulus. When an…

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.