Rectang Left leg Right leg FIGURE 19.3 Flexor and crossed extensor reflex arc. DANK

Q: Type I fibers are only recruited in light repetitive movements like postural adjustment and slow…

A: The muscle fibres have a specialised structure that helps in contraction. Usually the actin and…

Q: Which 1st order, somatic afferent neuron is ativated by light pressure and hair movement: A-…

A: The somatosensory system consists of a large framework of nerve ends and receptors that play a vital…

Q: Background:  A doctor conducted a patellar tendon (aka knee jerk - covered in lecture, assigned…

A: Knee-jerk reflex:-  Is a stretch reflex test performed to check the integrity of the spinal segments…

Q: Question 9 The anterolateral ascending sensory pathway crosses the midline in the medulla O True O…

A: The nervous system of the body is responsible for the coordination of movements and involuntary…

Q: Depolarization of a motor nerve is produced by the ____ of _____ channels in the nodes of Ranvier:…

A: The potential changes during the transmission of nerve impulse are called action potential. There…

Q: Define synaptic knob.

A: Nervous system is a complex network of nerves and cells that carry messages to and from the brain…

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

A: Ans - the correct answer for the above question is- A) Different motor units were contracting while…

Q: Which of the following is NOT true of the plantar reflex known as the Babinski's sign? O This is a…

A: The nervous system of a human being is a complex system that helps to coordinate behavior and to…

Q: What is the term used to describe the fibers in the spinal cord that carry sensory information to…

A: Our body is comprised of many different organ systems which has individual functions to perform.…

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: Match the numbers in Figure with the description of what is happening as the sensory neurons,…

A: graded potential starts in a sensory receptor in the skin  At the first synapse , a presynaptic…

Q: Tendon- organ Quadriceps (extensors) + Excitatory synapse - Inhibitory synapse Hamstrings (flexors)…

A: LabellingAfferent sensory fiberInterneurons ( excitatory & inhibitory)Efferent motor fiber

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

A: The myotatic (stretch) reflex, which is also known as the deep tendon reflex, can be defined as the…

Q: Parkinson's Disease results in a(n)  (increase or decrease) in D1 mediated effects on striatal…

A: Parkinson's disease is a neurological movement disorder that occurs due to some neurons in the brain…

Q: What is a motor unit?     A group of muscles that are all innervated from the same spinal level…

A: Nervous system is a type of body system which is involved in control as well as coordination . It…

Q: Which of the following is TRUE of the ventral rami of the spinal nerves?   Question 13 options:…

A: true statement from the above statements about the Ventral rami of the spinal nerves.

Q: 41- Gamma motor neurons: a- Causes contraction of the equatorial region of an intrafusal fiber b-…

A: The mechanism of gamma motor neurons helps in regulating muscle length and tone.

Q: U E N O

A: The spinal cord is a component of the central nervous system and is located inside the vertebral…

Q: Sometimes you have lighting fast reflexes to protect yourself from a further dangerous situation –…

A: Reflex actions are associated with animal behavior in which the stimulation of sensory organs…

Q: Hammer hits the patellar tendon. 1 2 3 4 5 ⠀⠀⠀ !!!! ⠀⠀ Sensory neuron sends signal Stimulus at the…

A: The path through which reflex action takes place and extends between sensory organ to effector organ…

Q: Using pyramidal motor tract as a template, describe the voluntary control of skeletal muscles being…

A: Pyramidal tracts consist of the corticospinal tract and corticobulbar tract.  The tracts are…

Q: Golgi tendon organs are Select one: Interoceptors Proprioceptors Exteroceptors

A: Golgi tendon organs are receptors that are located within the tendons. These receptors are found on…

Q: The corticospinal pathway is involved in: Activating skeletal muscle Activating smooth muscle…

A: The corticospinal pathway is the motor pathway that transmits efferent (motor) information from the…

Q: You are recording from neurons in a non-human primate and have noticed that these neurons fire in…

A: In the neurological system, neurons are specialised cells that carry electrical and chemical…

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

A: One of the three spaces in the axillary space is the quadrangular space, often referred to as the…

Q: Which type of proprioreceptor is sensitive to changes in both muscle length and the speed of muscle…

A: Introduction  Isometric: A muscular contraction in which the muscle length remains constant.…

Q: Click on the number indicating the structure that holds the somas of peripheral sensory neurons.

A: The nervous system is a highly sophisticated element of an animal which organizes its movements and…

Q: Neuroscience Describe depolarization at the Neuro Muscular Junction (NMJ) Please provide…

A: The neuromuscular junction is junction where nerves and muscle fibers meet. It is an essential…

Q: Question 32 Match these muscles with their nerve supplies. A nerve can be used more than once…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Increased frequency of stimulation resulting in increased tension in a motor unit is A. recruitment…

A: Introduction:- Motor unit activation is the stimulation of further motor units in order to enhance…

Q: In your own words how are drugs and toxins can have direct and indirect stimulation of the motor…

A: Toxins and drugs are a conceivable and prevalent significant public health problem, but they…